U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication year rev 7980-2020 Remove constraint Publication year rev: 7980-2020 Subject term bacteria Remove constraint Subject term: bacteria
Start Over

Search

5,455  Search Results

« Previous | 1 - 100 of 5,455 |
Number of results to display per page

Search Results

1. 1,2H hyperfine spectroscopy and DFT modeling unveil the demethylmenasemiquinone binding mode to E. coli nitrate reductase A (NarGHI)

Author:
Maryam Seif Eddine; Frédéric Biaso; Julia Rendon; Eric Pilet; Bruno Guigliarelli; Axel Magalon; Stéphane Grimaldi
Source:
Biochimica et biophysica acta 2020 v.1861 no.8 pp. 148203
ISSN:
0005-2728
Subject:
Escherichia coli; bacteria; deuterium oxide; electron paramagnetic resonance spectroscopy; isoprenoids; isotropy; menaquinones; models; nitrate reductase; oxidation; protons; ubiquinones
Abstract:
... The quinol oxidation site QD in E. coli respiratory nitrate reductase A (EcNarGHI) reacts with the three isoprenoid quinones naturally synthesized by the bacterium, i.e. ubiquinones (UQ), menaquinones (MK) and demethylmenaquinones (DMK). The binding mode of the demethylmenasemiquinone (DMSK) intermediate to the EcNarGHI QD quinol oxidation site is analyzed in detail using ¹,²H hyperfine (hf) spect ...
DOI:
10.1016/j.bbabio.2020.148203

2. 16S rRNA Sequencing Detected Profftella, Liberibacter, Wolbachia, and Diplorickettsia from Relatives of the Asian Citrus Psyllid

Author:
Atsushi Nakabachi; Igor Malenovský; Ilia Gjonov; Yuu Hirose
Source:
Microbial ecology 2020 v.80 no.2 pp. 410-422
ISSN:
0095-3628
Subject:
Candidatus Liberibacter; Citrus; Diaphorina citri; Oceanospirillales; Psyllidae; Wolbachia; arthropods; bacteria; bacteriome; etiological agents; evolution; fruit diseases; genes; greening disease; horticulture; hosts; insects; microbiome; mutualism; pests; plants (botany); reproduction; ribosomal RNA; sequence analysis; symbionts
Abstract:
... The Asian citrus psyllid Diaphorina citri (Hemiptera: Psylloidea) is a serious pest of citrus species worldwide because it transmits Candidatus Liberibacter spp. (Alphaproteobacteria: Rhizobiales), the causative agents of the incurable citrus disease, huanglongbing or greening disease. Diaphorina citri possesses a specialized organ called a bacteriome, which harbors vertically transmitted intracel ...
DOI:
10.1007/s00248-020-01491-z

3. 16S rRNA Sequencing and Metagenomics Study of Gut Microbiota: Implications of BDB on Type 2 Diabetes Mellitus

Author:
Liang Zhang; Jiao Luo; Xiangqian Li; Shuju Guo; Dayong Shi
Source:
Marine drugs 2020 v.18 no.9 pp. -
ISSN:
1660-3397
Subject:
Bacteroides; Lachnospiraceae; Rhodomela; bacteria; blood glucose; genes; glycemic effect; intestinal microorganisms; metabolic diseases; metabolism; metagenomics; metformin; mice; research; sequence analysis; starch; sucrose
Abstract:
... Gut microbiota has a critical role in metabolic diseases, including type 2 diabetes mellitus (T2DM). 3-bromo-4,5-bis(2,3-dibromo-4,5-dihydroxybenzyl)-1,2-benzenediol (BDB) is a natural bromophenol isolated from marine red alga Rhodomela confervoides. Our latest research showed that BDB could alleviate T2DM in diabetic BKS db mice. To find out whether BDB modulates the composition of the gut microb ...
DOI:
10.3390/md18090469

4. 2,3-Dihydroxyisovalerate production by Klebsiella pneumoniae

Author:
Yike Wang; Jinjie Gu; Xiyang Lu; Zhongxi Zhang; Yang Yang; Shaoqi Sun; Emily T. Kostas; Jiping Shi; Mintian Gao; Frank Baganz; Gary J. Lye; Jian Hao
Source:
Applied microbiology and biotechnology 2020 v.104 no.15 pp. 6601-6613
ISSN:
0175-7598
Subject:
Klebsiella pneumoniae; bacteria; batch fermentation; biosynthesis; biotechnology; byproducts; carbon; culture media; genes; glucose; lactic acid; leucine; metabolites; oxygen; pH; valine
Abstract:
... 2,3-Dihydroxyisovalerate is an intermediate of valine and leucine biosynthesis pathway; however, no natural microorganism has been found yet that can accumulate this compound. Klebsiella pneumoniae is a useful bacterium that can be used as a workhorse for the production of a range of industrially desirable chemicals. Dihydroxy acid dehydratase, encoded by the ilvD gene, catalyzes the reaction of 2 ...
DOI:
10.1007/s00253-020-10711-y

5. 3-Nitrooxypropanol supplementation had little effect on fiber degradation and microbial colonization of forage particles when evaluated using the in situ ruminal incubation technique

Author:
Xiu Min Zhang; Robert J. Gruninger; Aklilu W. Alemu; Min Wang; Zhi Liang Tan; Maik Kindermann; Karen A. Beauchemin
Source:
Journal of dairy science 2020 v.103 no.10 pp. 8986-8997
ISSN:
0022-0302
Subject:
Bacteroidetes; Fibrobacteres; Firmicutes; Methanobrevibacter; bacteria; bacterial communities; bags; barley; beef cattle; cannulas; cross-over studies; dietary supplements; enzyme inhibitors; enzymes; forage; grass hay; hydrogen; methane; methane production; methanogens; microbial colonization; multidimensional scaling; neutral detergent fiber; phylogeny; rumen fluids; silage; species diversity
Abstract:
... 3-Nitrooxypropanol (3-NOP) is an investigational compound that acts as an enzyme inhibitor to decrease ruminal methanogenesis. We hypothesized that when feeding 3-NOP to cattle fed a high-forage diet, H₂ would accumulate in the rumen, which could suppress microbial colonization of feed particles and fiber degradation. Therefore, the study investigated the effects of supplementing a high-forage die ...
DOI:
10.3168/jds.2019-18077

6. Listeria monocytogenes Response to Anaerobic Environments

Author:
Brandy N. Roberts; Damayanti Chakravarty; J.C. Gardner; Steven C. Ricke; Janet R. Donaldson
Source:
Pathogens 2020 v.9 no.3 pp. -
ISSN:
2076-0817
Subject:
Listeria monocytogenes; anaerobic conditions; bacteria; dairy products; elderly; essential genes; fetus; food industry; fruits; knowledge; listeriosis; luncheon meats; oxygen; pH; pathogens; pregnant women; ready-to-eat foods; temperature; vegetables; virulence
Abstract:
... Listeria monocytogenes is a Gram-positive facultative anaerobic bacterium that is responsible for the disease, listeriosis. It is particularly lethal in pregnant women, the fetus, the elderly and the immunocompromised. The pathogen survives and replicates over a wide range of temperatures (4 to 42 °C), pH, salt and oxygen concentrations. Because it can withstand various environments,
DOI:
10.3390/pathogens9030210

7. A Classical Molecular Dynamics Simulation Study of Interfacial and Bulk Solution Aggregation Properties of Dirhamnolipids

Author:
Charles M. Luft; Elango Munusamy; Jeanne E. Pemberton; Steven D. Schwartz
Source:
Journal of physical chemistry 2020 v.124 no.5 pp. 814-827
ISSN:
1520-5207
Subject:
Pseudomonas aeruginosa; bacteria; biodegradability; biosurfactants; hydrophilicity; hydrophobicity; liquid-air interface; molecular dynamics; molecular weight; rhamnolipids; rhamnose; surface area
Abstract:
... The rhamnolipids are a unique class of biosurfactants produced by the bacteria Pseudomonas aeruginosa. These molecules display a high level of surface activity as well as biodegradability. In this study nonionic dirhamnolipid was investigated by utilizing molecular dynamics simulation at the air–water interface as well as in bulk water. Detailed structural analysis is presented for both the interf ...
DOI:
10.1021/acs.jpcb.9b08800
PubMed:
31958226
PubMed Central:
PMC7042949

8. A Comprehensive Understanding of Electro-Fermentation

Author:
Drishti Dinesh Bhagchandanii; Rishi Pramod Babu; Jayesh M. Sonawane; Namita Khanna; Soumya Pandit; Dipak A. Jadhav; Santimoy Khilari; Ram Prasad
Source:
Fermentation 2020 v.6 no.3 pp. -
ISSN:
2311-5637
Subject:
bacteria; biochemical pathways; biomass production; carbon; design; economic sustainability; electrochemistry; electrodes; electrons; fermentation; fermenters; industrial applications; methane production; mixed culture; pH; protons; strains
Abstract:
... Electro-fermentation (EF) is an upcoming technology that can control the metabolism of exoelectrogenic bacteria (i.e., bacteria that transfer electrons using an extracellular mechanism). The fermenter consists of electrodes that act as sink and source for the production and movement of electrons and protons, thus generating electricity and producing valuable products. The conventional process of f ...
DOI:
10.3390/fermentation6030092

9. A Glimpse into the Microbiota of Marketed Ready-to-Eat Crickets (Acheta domesticus)

Author:
Vesna Milanović; Federica Cardinali; Lucia Aquilanti; Cristiana Garofalo; Andrea Roncolini; Riccardo Sabbatini; Francesca Clementi; Andrea Osimani
Source:
Indian journal of microbiology 2020 v.60 no.1 pp. 115-118
ISSN:
0046-8991
Subject:
Acheta domesticus; Clostridium; European Union; Hydrogenophilus; Lysobacter; Pseudomonas; Ruminococcus; Staphylococcus; bacteria; commercialization; denaturing gradient gel electrophoresis; enzymes; genes; insects; polymerase chain reaction; ready-to-eat foods; rearing; ribosomal RNA; Austria; Belgium; France; Netherlands
Abstract:
... The present study was aimed to get an insight into the bacterial biota of ready-to-eat small crickets (Acheta domesticus) already marketed in the European Union. 16S rRNA gene of the DNAs extracted from thirty-two samples of ready-to-eat crickets commercialized by 4 European Union producers located in Austria, Belgium, France and the Netherlands (2 batches per producer) was analyzed by Polymerase ...
DOI:
10.1007/s12088-019-00817-x
PubMed:
32089581
PubMed Central:
PMC7000585

10. A Grain Rot of Rice in Iran Caused by a Xanthomonas Strain Closely Related to X. sacchari

Author:
S. Ali Mirghasempour; Shiwen Huang; David J. Studholme; Carrie L. Brady
Source:
Plant disease 2020 v.104 no.6 pp. 1581-1583
ISSN:
0191-2917
Subject:
Oryza sativa; Xanthomonas sacchari; bacteria; rice; sequence analysis; Iran
Abstract:
... Rice grain rot disease was detected for the first time in Mazandaran Province, Iran. The bacteria isolated from infected rice plants showed grains rotted and darkening. A Xanthomonas strain closely connected to X. sacchari was identified using molecular and whole genome sequencing approaches confirmed as the causal agent by fulfilling Koch’s postulates. ...
DOI:
10.1094/PDIS-01-20-0179-SC

11. A Key Glycine in Bacterial Steroid-Degrading Acyl-CoA Dehydrogenases Allows Flavin-Ring Repositioning and Modulates Substrate Side Chain Specificity

Author:
Alexander J. Stirling; Stephanie E. Gilbert; Megan Conner; Evan Mallette; Matthew S. Kimber; Stephen Y. K. Seah
Source:
Biochemistry 2020 v.59 no.42 pp. 4081-4092
ISSN:
1520-4995
Subject:
Mycobacterium tuberculosis; Thermomonospora curvata; active sites; acyl coenzyme A; bacteria; cholesterol; degradation; enzymes; eukaryotic cells; genes; metabolites; models; oxidation; saprophytes
Abstract:
... A wide variety of steroid metabolites synthesized by eukaryotes are all ultimately catabolized by bacteria; while generally saprophytic, pathogenic Mycobacteria have repurposed these pathways to utilize host intracellular cholesterol pools. Steroid degradation is complex, but a recurring theme is that cycles of β-oxidation are used to iteratively remove acetyl- or propanoyl-CoA groups. These β-oxi ...
DOI:
10.1021/acs.biochem.0c00568

12. A Nanostructured Gold/Graphene Microfluidic Device for Direct and Plasmonic-Assisted Impedimetric Detection of Bacteria

Author:
Roozbeh Siavash Moakhar; Tamer AbdelFatah; Alireza Sanati; Mahsa Jalali; Sarah Elizabeth Flynn; Sahar Sadat Mahshid; Sara Mahshid
Source:
ACS applied materials & interfaces 2020 v.12 no.20 pp. 23298-23310
ISSN:
1944-8252
Subject:
Escherichia coli; Pseudomonas putida; Staphylococcus epidermidis; bacteria; contact angle; detection limit; dielectric spectroscopy; electric field; electrochemistry; gold; graphene; light; nanogold; nanosheets; sensors (equipment); wettability
Abstract:
... Hierarchical 3D gold nano-/microislands (NMIs) are favorably structured for direct and probe-free capture of bacteria in optical and electrochemical sensors. Moreover, their unique plasmonic properties make them a suitable candidate for plasmonic-assisted electrochemical sensors, yet the charge transfer needs to be improved. In the present study, we propose a novel plasmonic-assisted electrochemic ...
DOI:
10.1021/acsami.0c02654

13. A Rare Cause of a Scrotal Abscess due to the Symbiotic Infection of Gardnerella vaginalis and Prevotella bivia in an Adult Male

Author:
Anthony Bekasiak; Fabian Dammann; Claudia Nader
Source:
Pathogens 2020 v.9 no.2 pp. -
ISSN:
2076-0817
Subject:
Gardnerella vaginalis; Prevotella bivia; abscess; adults; bacteria; males; men; mixed infection; pathogens; symbiosis; women
Abstract:
... Gardnerella vaginalis (G. vaginalis) is the major bacteria detected in women with bacterial vaginosis (BV). Prevotella bivia (P. bivia) has been demonstrated to show a symbiotic relationship with G. vaginalis. Some men have been shown to be colonized with G. vaginalis in their urogenital or anorectal tracts, however genitourinary infections in males, including balanitis and urethritis, due to this ...
DOI:
10.3390/pathogens9020093

14. A Review of Salmonella and Campylobacter in Broiler Meat: Emerging Challenges and Food Safety Measures

Author:
Hudson T. Thames; Anuraj Theradiyil Sukumaran
Source:
Foods 2020 v.9 no.6 pp. -
ISSN:
2304-8158
Subject:
Campylobacter; HACCP; Salmonella; animal source protein; anti-infective agents; bacteria; bacterial contamination; cetylpyridinium chloride; chicken meat; chlorine; chlorites; industry; methodology; nonthermal processing; peracetic acid; poultry; sodium; spraying; United States
Abstract:
... Poultry is one of the largest sources of animal-based protein in the United States. Poultry processing has grown from a small local network of plants to nearly 500 plants nationwide. Two of the most persistent bacteria in poultry processing are Salmonella and Campylobacter. It was not until the introduction of Hazard Analysis and Critical Control Point systems in 1996 that major efforts to reduce ...
DOI:
10.3390/foods9060776

15. A Rice NBS-ARC Gene Conferring Quantitative Resistance to Bacterial Blight Is Regulated by a Pathogen Effector-Inducible miRNA

Author:
Guanghuai Jiang; Dongfeng Liu; Dedong Yin; Zhuangzhi Zhou; Yue Shi; Chunrong Li; Lihuang Zhu; Wenxue Zhai
Source:
Molecular plant 2020 v.13 no.12 pp. 1752-1767
ISSN:
1674-2052
Subject:
DNA methylation; bacteria; binding sites; blight; breeding; crop losses; cultivars; disease resistance; evolution; genes; innate immunity; landraces; microRNA; models; molecular cloning; pathogens; quantitative trait loci; sequence analysis; wild rice
Abstract:
... The bacterium Xanthomonas oryzae pv. Oryzae (Xoo) causes blight in rice worldwide, resulting in significant crop loss. However, no gene underlying a quantitative trait locus (QTL) for resistance against Xoo has been cloned yet. Here, we report the map-based cloning of a QTL, in which the NBS8R gene confers quantitative resistance to Xoo. NBS8R encodes an NB-ARC protein, which is involved in pathog ...
DOI:
10.1016/j.molp.2020.09.015

16. A Tale of Two Transitions: The Unfolding Mechanism of the prfA RNA Thermosensor

Author:
Huaqun Zhang; Ian Hall; Amos J. Nissley; Kyrillos Abdallah; Sarah C. Keane
Source:
Biochemistry 2020 v.59 no.48 pp. 4533-4545
ISSN:
1520-4995
Subject:
Listeria monocytogenes; Ursidae; bacteria; binding sites; genes; messenger RNA; ribosomes; temperature; thermal stability; transcription factors; virulence
Abstract:
... RNA thermosensors (RNATs), found in the 5′ untranslated region (UTR) of some bacterial messenger RNAs (mRNAs), control the translation of the downstream gene in a temperature-dependent manner. In Listeria monocytogenes, the expression of a key transcription factor, PrfA, is mediated by an RNAT in its 5′ UTR. PrfA functions as a master regulator of virulence in L. monocytogenes, controlling the exp ...
DOI:
10.1021/acs.biochem.0c00588

17. A Two-Component System Acquired by Horizontal Gene Transfer Modulates Gene Transfer and Motility via Cyclic Dimeric GMP

Author:
Purvikalyan Pallegar; Marta Canuti; Evan Langille; Lourdes Peña-Castillo; Andrew S. Lang
Source:
Journal of molecular biology 2020 v.432 no.17 pp. 4840-4855
ISSN:
0022-2836
Subject:
Rhodobacter capsulatus; Rhodobacter sphaeroides; Sphingomonadales; bacteria; cyclic GMP; enzyme activity; gene transfer; genes; histidine kinase; horizontal gene transfer; phosphorylation; proteins
Abstract:
... Bis-(3′–5′)-cyclic dimeric guanosine monophosphate (c-di-GMP) is an important intracellular signaling molecule that affects diverse physiological processes in bacteria. The intracellular levels of c-di-GMP are controlled by proteins acting as diguanylate cyclase (DGC) and phosphodiesterase (PDE) enzymes that synthesize and degrade c-di-GMP, respectively. In the alphaproteobacterium Rhodobacter cap ...
DOI:
10.1016/j.jmb.2020.07.001

18. A YajQ‐LysR‐like, cyclic di‐GMP‐dependent system regulating biosynthesis of an antifungal antibiotic in a crop‐protecting bacterium, Lysobacter enzymogenes

Author:
Sen Han; Danyu Shen; Yu‐Chuan Wang; Shan‐Ho Chou; Mark Gomelsky; Yong‐Gui Gao; Guoliang Qian
Source:
Molecular plant pathology 2020 v.21 no.2 pp. 218-229
ISSN:
1464-6722
Subject:
DNA; Lysobacter enzymogenes; Xanthomonas campestris; antibiotics; bacteria; binding proteins; biological control agents; biosynthesis; fungi; heat stability; operon; pathogens; promoter regions; second messengers; transcription (genetics); transcription factors; virulence
Abstract:
... YajQ, a binding protein of the universal bacterial second messenger cyclic di‐GMP (c‐di‐GMP), affects virulence in several bacterial pathogens, including Xanthomonas campestris. In this bacterium, YajQ interacts with the transcription factor LysR. Upon c‐di‐GMP binding, the whole c‐di‐GMP‐YajQ‐LysR complex is found to dissociate from DNA, resulting in virulence gene regulation. Here, we identify a ...
DOI:
10.1111/mpp.12890
PubMed:
31747123
PubMed Central:
PMC6988422

19. A bacterial vaccine polypeptide protective against nontypable Haemophilus influenzae

Author:
Paul W. Whitby; Daniel J. Morton; Huda J. Mussa; Lucia Mirea; Terrence L. Stull
Source:
Vaccine 2020 v.38 no.14 pp. 2960-2970
ISSN:
0264-410X
Subject:
Chinchilla (Chinchillidae); Haemophilus influenzae; adjuvants; affinity chromatography; alum; animal models; antibodies; antiserum; bacteremia; bacteria; bacterial vaccines; bioinformatics; enzyme-linked immunosorbent assay; immunoglobulin G; middle ear; otitis media; polypeptides; respiratory tract diseases; surface proteins; vaccine development; United States
Abstract:
... Nontypeable strains of Haemophilus influenzae (NTHi) are one of the most common cause of otitis media and the most frequent infection associated with exacerbations of chronic obstructive pulmonary disease; there is currently no vaccine in the U.S. to prevent NTHi. Using bioinformatics and structural vaccinology, we previously identified several NTHi species-conserved and sequence-conserved peptide ...
DOI:
10.1016/j.vaccine.2020.02.054

20. A bacterium against the tiger: preliminary evidence of fertility reduction after release of Aedes albopictus males with manipulated Wolbachia infection in an Italian urban area

Author:
Beniamino Caputo; Riccardo Moretti; Mattia Manica; Paola Serini; Elena Lampazzi; Marco Bonanni; Giulia Fabbri; Verena Pichler; Alessandra della Torre; Maurizio Calvitti
Source:
Pest management science 2020 v.76 no.4 pp. 1324-1332
ISSN:
1526-498X
Subject:
Aedes albopictus; Culex pipiens; Wolbachia; arboviruses; bacteria; cytoplasmic incompatibility; eggs; endosymbionts; females; field experimentation; insect control; insects; males; risk; sterilizing; temperate zones; urban areas; Italy
Abstract:
... BACKGROUND: Novel tools are needed to reduce the nuisance and risk of exotic arbovirus transmission associated with the colonization of temperate regions by Aedes albopictus. The incompatible insect technique (IIT) is a population suppression approach based on cytoplasmic incompatibility between males with manipulated endosymbionts and wild females. Here, we present the results of the first field ...
DOI:
10.1002/ps.5643

21. A bio-functions integration microcosm: Self-immobilized biochar-pellets combined with two strains of bacteria to remove atrazine in water and mechanisms

Author:
Tianmiao Yu; Li Wang; Fang Ma; Yujiao Wang; Shanshan Bai
Source:
Journal of hazardous materials 2020 v.384 pp. 121326
ISSN:
0304-3894
Subject:
Agrobacterium; Arthrobacter; Aspergillus niger; Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorption; atrazine; bacteria; biochar; biochemical pathways; biodegradation; biomass; biosorption; energy-dispersive X-ray analysis; fungi; kinetics; mechanism of action; models; pH; pellets; scanning electron microscopy; strength (mechanics); wastewater treatment; zeta potential
Abstract:
... A self-immobilization method for microorganisms was developed based on fungal pellets. Generally, pellets have some problems such as cell leakage, cell loading limitation and low mechanical strength. Therefore, biochar was applied to overcome these disadvantages. Atrazine degradable microorganism Arthrobacter sp. ZXY-2 was immobilized by Aspergillus niger Y3 pellets. After adding biochar with opti ...
DOI:
10.1016/j.jhazmat.2019.121326

22. A biophysiological perspective on enhanced nitrate removal from decentralized domestic sewage using gravitational-flow multi-soil-layering systems

Author:
Pei Song; Guohe Huang; Yongyuan Hong; Chunjiang An; Xiaying Xin; Peng Zhang
Source:
Chemosphere 2020 v.240 pp. 124868
ISSN:
0045-6535
Subject:
activated sludge; aerobes; bacteria; biofilm; denitrification; factor analysis; habitats; nitrates; oxygen consumption; polybutylene succinate; sewage; sewage treatment; soil; soil sampling; species abundance; species richness; total nitrogen; zeolites
Abstract:
... Multi-soil-layering (MSL) system with brick-wall pattern structure and gravitational flow can be used for decentralized rural domestic sewage treatment. The capability of soil for contaminant removal is maximized within soil mixture blocks (SMBs). However, the performance of removing nitrate was still not ideal during operation. To improve its performance in MSL system, the relationship between bi ...
DOI:
10.1016/j.chemosphere.2019.124868

23. A cinnamaldehyde-based formulation as an alternative to sodium hypochlorite for post-harvest decontamination of citrus fruit

Author:
Caio F. C. Zamuner; Guilherme Dilarri; Lucia C. Bonci; Luiz L. Saldanha; Franklin Behlau; Tamiris G. S. Marin; Daiane C. Sass; Mauricio Bacci Jr.; Henrique Ferreira
Source:
Tropical plant pathology 2020 v.45 no.6 pp. 701-709
ISSN:
1983-2052
Subject:
Citrus; European Union; bacteria; chemical analysis; citrus canker; citrus fruits; control methods; copper; corrosion; decontamination; equipment; eugenol; food contamination; fruit quality; growers; isomers; laws and regulations; leafminers; organic matter; plant pathology; population; raw fruit; sodium hypochlorite; trees; tropical plants; windbreaks; Brazil
Abstract:
... According to the most recent regulation, published in 2018, areas or states of Brazil where citrus canker is endemic are no longer obliged to eradicate citrus trees affected by the disease as in the past 60 years. Instead, growers have to adopt a set of control measures, such as copper sprays, windbreaks, and control of the citrus leaf miner to minimize the impact of the disease on fruit quality a ...
DOI:
10.1007/s40858-020-00338-9

24. A comparative assessment of anti-inflammatory, anti-oxidant and anti-bacterial activities of hybrid and indigenous varieties of pumpkin (Cucurbita maxima Linn.) seed oil

Author:
M. Ziaul Amin; Tahera Islam Rity; M. Rasel Uddin; Md. Mashiar Rahman; M. Jashim Uddin
Source:
Biocatalysis and agricultural biotechnology 2020 v.28 pp. 101767
ISSN:
1878-8181
Subject:
2,2-diphenyl-1-picrylhydrazyl; Cucurbita maxima; Escherichia coli; Shigella sonnei; anti-inflammatory activity; antibacterial properties; antioxidant activity; antioxidants; bacteria; bovine serum albumin; denaturation; dose response; ethanol; hybrids; ingredients; inhibitory concentration 50; pumpkin oil; pumpkins
Abstract:
... Pumpkin seed is being used traditionally for curing and protecting various ailments. The present study was designed to evaluate the anti-inflammatory, anti-oxidant and anti-bacterial activities of ethanol extract of pumpkin (Cucurbita maxima Linn.) seed oil from hybrid and indigenous varieties. An anti-inflammatory, anti-oxidant, and anti-bacterial activities were assessed by BSA (bovine serum alb ...
DOI:
10.1016/j.bcab.2020.101767

25. A comparative study on the use of selective media for the enumeration of Clostridium perfringens in poultry faeces

Author:
Martina Hustá; Richard Ducatelle; Freddy Haesebrouck; Filip Van Immerseel; Evy Goossens
Source:
Anaerobe 2020 v.63 pp. 102205
ISSN:
1075-9964
Subject:
Clostridium perfringens; antibiotic resistance; bacteria; color; comparative study; cycloserine; diagnostic techniques; feces; pathogenesis; poultry; selective media; sulfites; veterinary medicine
Abstract:
... Isolation and fast detection of Clostridium perfringens is essential in veterinary medical diagnostics and veterinary research, as it allows to recommend suitable treatment options after antimicrobial resistance determination, and is essential to study pathogenesis. In this study four selective media were tested for the enumeration of, and selectivity towards C. perfringens in faecal samples from ...
DOI:
10.1016/j.anaerobe.2020.102205

26. A coupled bio-chemo-hydraulic model to predict porosity and permeability reduction during microbially induced calcite precipitation

Author:
Xuerui Wang; Udo Nackenhorst
Source:
Advances in water resources 2020 v.140 pp. 103563
ISSN:
0309-1708
Subject:
bacteria; calcite; chemical reactions; effective porosity; hydraulic conductivity; laboratory experimentation; models; permeability; soil mechanical properties; urease; water resources
Abstract:
... Microbially induced calcite precipitation (MICP) provides the potential for developing innovative and environmentally friendly techniques to improve the engineering properties of soil through reduction of permeability in soil and increase of soil stiffness and strength. In the present research work, coupled bio-chemo-hydraulic modelling was developed to enhance the understanding of the coupled pro ...
DOI:
10.1016/j.advwatres.2020.103563

27. A critical review of the relationship between dietary components, the gut microbe Akkermansia muciniphila, and human health

Author:
Muthukumaran Jayachandran; Stephen Sum Man Chung; Baojun Xu
Source:
Critical reviews in food science and nutrition 2020 v.60 no.13 pp. 2265-2276
ISSN:
1549-7852
Subject:
atherosclerosis; bacteria; diabetes mellitus; digestive system; food science; human health; humans; immunomodulation; intestinal microorganisms; prebiotics; therapeutics
Abstract:
... The human gut contains trillions of microorganisms with a great diversity that are associated with various health benefits. Recent studies have reported an increasing correlation between diet, gut microbiota, and human health, indicating rapid development in the field of gut health. Diet is an important factor that determines the gut microbiota composition. The gut comprises great diversities of m ...
DOI:
10.1080/10408398.2019.1632789

28. A cross sectional study of prevalence and risk factors associated with subclinical mastitis and intramammary infections, in dairy herds linked to milk collection centers in Rwanda

Author:
Jean Baptiste Ndahetuye; Janvier Twambazimana; Ann-Kristin Nyman; Callixte Karege; Michael Tukei; Martin Patrick Ongol; Ylva Persson; Renée Båge
Source:
Preventive veterinary medicine 2020 v.179 pp. 105007
ISSN:
0167-5877
Subject:
California mastitis test; Staphylococcus aureus; Staphylococcus chromogenes; Staphylococcus epidermidis; antibiotic resistance; bacteria; biosecurity; bovine mastitis; calves; clindamycin; cross-sectional studies; dairy cows; dairy herds; factor analysis; farmers; fermented milk; hygiene; lactation; legs; milk; milking; milking parlors; pathogens; penicillins; regression analysis; risk factors; screening; suckling; tetracycline; udder quarters; Rwanda
Abstract:
... The objective of this cross-sectional study was to investigate prevalence, causative udder pathogens and their antimicrobial resistance (AMR), as well as cow and herd risk factors associated with subclinical mastitis (SCM = cows with at least one udder quarter with california mastitis test (CMT) score > 2) and intramammary infections (IMI) caused by Staphylococcus(S.) aureus or Non aureus staphylo ...
DOI:
10.1016/j.prevetmed.2020.105007

29. A d-glucose- and d-xylose-tolerant GH1 β-glucosidase from Cellulosimicrobium funkei HY-13, a fibrolytic gut bacterium of Eisenia fetida

Author:
Do Young Kim; Jonghoon Kim; Sun Hwa Lee; Chungwook Chung; Dong-Ha Shin; Bon-Hwan Ku; Kwang-Hee Son; Ho-Yong Park
Source:
Process biochemistry 2020 v.94 pp. 282-288
ISSN:
1359-5113
Subject:
Cellulosimicrobium; Eisenia fetida; Escherichia coli; bacteria; beta-glucosidase; biocatalysts; calcium; catalytic activity; cobalt; dose response; earthworms; enzyme activity; galactose; gene overexpression; genes; glucose; glycosides; intestinal microorganisms; ions; manganese; mercury; nickel; pH; xylose
Abstract:
... The GluM gene (1491-bp) coding for a β-glucosidase comprising a single catalytic glycoside hydrolase family 1 domain from an earthworm (Eisenia fetida)-symbiotic bacterium, Cellulosimicrobium funkei HY-13, was cloned and over-expressed in Escherichia coli BL21. The recombinant histidine-tagged enzyme (rGluM: 56 kDa) displayed the highest cleavage activity toward p-nitrophenyl (pNP)-β-d-glucopyrano ...
DOI:
10.1016/j.procbio.2020.04.033

30. A disposable gold-cellulose nanofibril platform for SERS mapping

Author:
Saliha Nur Tanis; Hasan Ilhan; Burcu Guven; Emine Kubra Tayyarcan; Hakan Ciftci; Necdet Saglam; Ismail Hakki Boyaci; Ugur Tamer
Source:
Analytical methods 2020 v.12 no.24 pp. 3164-3172
ISSN:
1759-9679
Subject:
Bacillus subtilis; Enterobacter aerogenes; Escherichia coli; Micrococcus luteus; Raman spectroscopy; antibodies; bacteria; cellulose; chlorides; detection limit; gold; mixing; nanofibers; nanogold; nanorods; nitrobenzoic acids; plate count
Abstract:
... In this study, we present a disposable and inexpensive paper-like gold nanoparticle-embedded cellulose nanofibril substrate for the rapid enumeration of Escherichia coli (E. coli) using surface-enhanced Raman scattering (SERS) mapping. A disposable SERS substrate was simply constructed by mixing CNF and gold chloride solution at 120 °C in a water bath. The application of the resulting substrate wa ...
DOI:
10.1039/d0ay00662a

31. A dual-functional implant with an enzyme-responsive effect for bacterial infection therapy and tissue regeneration

Author:
Yao Ding; Yansha Hao; Zhang Yuan; Bailong Tao; Maowen Chen; Chuanchuan Lin; Peng Liu; Kaiyong Cai
Source:
Biomaterials science 2020 v.8 no.7 pp. 1840-1854
ISSN:
2047-4849
Subject:
Staphylococcus aureus; animal experimentation; animal models; antibacterial properties; atomic absorption spectrometry; bacteria; bacterial infections; bones; endodeoxyribonucleases; ions; micro-computed tomography; nanoparticles; nanosilver; polyallylamines; polyamides; porous media; silica; silver; staining; therapeutics; tissue repair
Abstract:
... Biomaterial-associated bacterial infection is one of the major causes of implant failure. The treatment of such an implant infection typically requires the elimination of bacteria and acceleration of tissue regeneration around implants simultaneously. To address this issue, an ideal implanted material should have the dual functions of bacterial infection therapy and tissue regeneration at the same ...
DOI:
10.1039/c9bm01924c

32. A facile and universal strategy to endow implant materials with antibacterial ability via alkalinity disturbing bacterial respiration

Author:
Ji Tan; Zixiao Liu; Donghui Wang; Xianming Zhang; Shi Qian; Xuanyong Liu
Source:
Biomaterials science 2020 v.8 no.7 pp. 1815-1829
ISSN:
2047-4849
Subject:
alkalinity; bacteria; bacterial infections; cell proliferation; ceramics; cytotoxicity; electron transfer; electron transport chain; magnesium; magnesium oxide; osteoblasts; oxidative stress; polymers; titanium; zirconium oxide
Abstract:
... Multifarious strategies have been proposed to enhance the antibacterial ability of implant surfaces for preventing bacterial infection, however, developing facile and universal modification methods still remains extremely elusive. Herein, inspired by the fact that the electron transfer respiratory chain of bacteria is embedded in the membrane, we proposed a novel strategy of local alkalinity distu ...
DOI:
10.1039/c9bm01793c

33. A facile route to the preparation of antibacterial polysulfone-sulfonated polyethersulfone ultrafiltration membranes using a cationic surfactant cetyltrimethylammonium bromide

Author:
Aydın Cihanoğlu; Sacide Alsoy Altinkaya
Source:
Journal of membrane science 2020 v.594 pp. 117438
ISSN:
0376-7388
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; antibacterial properties; artificial membranes; bacteria; cationic surfactants; cetyltrimethylammonium bromide; contact angle; electrostatic interactions; gelation; leaching; micelles; molecular weight; permeability; polymers; sodium chloride; ultrafiltration
Abstract:
... Cetyltrimethylammonium bromide (CTAB), a cationic surfactant, is known to have strong bactericidal potential. In this study, we report a facile approach for preparing CTAB-containing polysulfone-sulfonated polyethersulfone (PSF-SPES) based ultrafiltration membranes with antibacterial properties. The CTAB was added in gelation medium at three different concentrations and made an electrostatic inter ...
DOI:
10.1016/j.memsci.2019.117438

34. A feasible scale-up production of Sporosarcina pasteurii using custom-built stirred tank reactor for in-situ soil biocementation

Author:
Armstrong I. Omoregie; Enzo A. Palombo; Dominic E.L. Ong; Peter M. Nissom
Source:
Biocatalysis and agricultural biotechnology 2020 v.24 pp. 101544
ISSN:
1878-8181
Subject:
Sporosarcina pasteurii; bacteria; bioprocessing; bioremediation; calcium carbonate; energy-dispersive X-ray analysis; enzyme activity; heavy metals; ingredients; pH; sand; scanning electron microscopy; soil; stainless steel; urease; yeast extract
Abstract:
... Production of urease enzyme from ureolytic bacteria (e.g. Sporosarcina pasteurii) is essential for precipitation of CaCO₃. This bioprocess is notably utilized for soil improvement, biocementation and bioremediation of heavy metals. Despite the viability for field-scale implementation as a suitable alternative to conventional treatment methods, most reports in the literature are constrained to labo ...
DOI:
10.1016/j.bcab.2020.101544

35. A fibrinogen-related protein (Mnfico3) acts as a novel pattern recognition receptor in Macrobrachium nipponense

Author:
Nan Qin; Mengjia Wu; Ting Tang; Fengsong Liu
Source:
Fish & shellfish immunology 2020 v.100 pp. 272-282
ISSN:
1050-4648
Subject:
Aeromonas veronii; Macrobrachium nipponense; RNA interference; amino acids; bacteria; binding capacity; cell-mediated immunity; complementary DNA; crustin; genes; hemocytes; ligands; muscles; open reading frames; pathogen-associated molecular patterns; phagocytosis; phylogeny; protein domains; recombinant proteins; shrimp; signal peptide; tissue distribution; vertebrates
Abstract:
... Fibrinogen-related proteins (FREPs) are widely found in both vertebrates as well as invertebrates, and they play a crucial role in host immunity. In this study, we isolated a novel ficolin gene (Mnfico3) from the oriental river prawn Macrobrachium nipponense. The complete cDNA sequence of Mnfico3 was 1133 bp long, containing an open reading frame of 765 bp coding for Mnfico3, a protein consisting ...
DOI:
10.1016/j.fsi.2020.02.066

36. A fish cytokine related to human IL-3, IL-5, and GM-CSF, induces development of eosinophil/basophil/mast-cell type (EBM) granulocytes

Author:
Kohei Nishiya; Mai Sawada; Johannes M. Dijkstra; Jiro Miyamae; Masaharu Okano; Fumihiko Katakura; Tadaaki Moritomo
Source:
Developmental and comparative immunology 2020 v.108 pp. 103671
ISSN:
0145-305X
Subject:
bacteria; basophils; carp; eosinophils; granulocyte-macrophage colony-stimulating factor; humans; interleukin-3; interleukin-5; mast cells; phytohemagglutinin; receptors; transcription factors
Abstract:
... Interleukin-3 (IL-3), IL-5, and granulocyte-macrophage colony-stimulating factor (GM-CSF) are related cytokines that signal through receptors possessing the β common (βc) chain. As a family, these cytokines combine rather non-specific hematopoietic growth factor properties with a special importance for eosinophils, basophils, and mast cells. In fish the cytokines of this family are called IL-5fam, ...
DOI:
10.1016/j.dci.2020.103671

37. A fluorescence quenching-recovery sensor based on RCA for the specific analysis of Fusobacterium nucleatum. nucleatum

Author:
Jingbo Jiao; Ping Li; Ying Gu; Xinjun Du; Shuo Wang; Junping Wang
Source:
Analytical biochemistry 2020 v.604 pp. 113808
ISSN:
0003-2697
Subject:
DNA-directed DNA polymerase; Fusobacterium nucleatum; bacteria; circular DNA; colorectal neoplasms; detection; digestion; fluorescence; genes; ligases; rolling; sampling; technology
Abstract:
... Fusobacterium nucleatum. nucleatum (Fn.n) is associated with colorectal carcinoma. A highly sensitive fluorescence quenching-recovery detection platform based on rolling circle amplification and hairpin molecular beacon technology for the specific analysis of Fn.n, hairpin MB being used to achieve double quenching. First, a specific recognition sequence target in the padlock probe was designed bas ...
DOI:
10.1016/j.ab.2020.113808

38. A genomic integration platform for heterologous cargo encapsulation in 1,2-propanediol utilization bacterial microcompartments

Author:
Taylor M. Nichols; Nolan W. Kennedy; Danielle Tullman-Ercek
Source:
Biochemical engineering journal 2020 v.156 pp. 107496
ISSN:
1369-703X
Subject:
Salmonella Typhimurium; bacteria; biochemical pathways; encapsulation; enzymes; fluorescence; genomics; loci; metabolic engineering; operon; signal peptide; toxicity
Abstract:
... Bacterial microcompartments (MCPs) are protein structures that encapsulate specific metabolic pathways in bacteria. The 1,2-propanediol utilization (Pdu) MCP in Salmonella enterica serovar Typhimurium LT2 encapsulates the pathway for 1,2-propanediol degradation to sequester a toxic intermediate, enable cofactor recycling, and enhance pathway flux. The Pdu MCP has potential as an enclosed scaffold ...
DOI:
10.1016/j.bej.2020.107496

39. A high-efficiency and eco-friendly degumming process for ramie fibers

Author:
Tong Shu; Yun Bai; Ya-wei Wang; Hui-hui Wang; Pan-deng Li; Meng-xiong Xiang; Tian-yi Yu; Hang Xu; Long-jiang Yu
Source:
Journal of cleaner production 2020 v.276 pp. 124217
ISSN:
0959-6526
Subject:
Fourier transform infrared spectroscopy; Pectobacterium carotovorum; bacteria; beta-mannosidase; community structure; degumming; enzyme activity; fabrics; genes; polygalacturonase; ramie; scanning electron microscopy; sequence analysis; temperature; textile industry; xylanases; China
Abstract:
... Degumming is the most critical step in the preparation of ramie fibers for textile application. However, the traditional chemical degumming process, which uses large amounts of alkali at high temperature, has been a severe challenge to the environment. In this study, a bacterial strain Pectobacterium carotovorum HG-49, was isolated and successfully applied to the degumming of ramie fibers at an in ...
DOI:
10.1016/j.jclepro.2020.124217

40. A histological and ultrastructural study of equine peripheral caries

Author:
D. Borkent; S. Smith; P. M. Dixon
Source:
Equine veterinary journal 2020 v.52 no.1 pp. 104-111
ISSN:
0425-1644
Subject:
bacteria; electron microscopy; histology; horses; teeth; tissues; veterinary dentistry
Abstract:
... BACKGROUND: Peripheral caries (PC) has recently been shown to affect over half of UK and Australian horses. OBJECTIVES: To examine affected cheek teeth histologically and ultrastructurally, to assess the possible route(s) of carious infection into the dental tissues and to further describe the pathological changes in affected teeth. STUDY DESIGN: Descriptive pathological study. METHODS: Four contr ...
DOI:
10.1111/evj.13134

41. A large-scale sustained fish kill in the St. Johns River, Florida: A complex consequence of cyanobacteria blooms

Author:
Jan H. Landsberg; John Hendrickson; Maki Tabuchi; Yasunari Kiryu; B. James Williams; Michelle C. Tomlinson
Source:
Harmful algae 2020 v.92 pp. 101771
ISSN:
1568-9883
Subject:
Aphanizomenon flos-aquae; Bacillus cereus; Brevoortia; Dasyatis sabina; Dorosoma; Leptolyngbya; Microcystis; Pseudanabaena; Sciaenops ocellatus; adults; algal blooms; ammonia; bacteria; baitfish; cyanobacterial toxins; dissolved oxygen; euryhaline species; fish kills; freshwater; hemolysis; menhaden; pH; plankton; poisonous algae; rivers; shad; summer; water quality; Florida
Abstract:
... In the summer of 2010, a sustained multispecies fish kill, affecting primarily adult red drum (Sciaenops ocellatus) and Atlantic stingray (Dasyatis sabina), along with various baitfish such as menhaden (Brevoortia spp.) and shad (Dorosoma spp.), was documented for six weeks along 50 km of the Lower St. Johns River (LSJR), Florida. An Aphanizomenon flos-aquae bloom was present in the freshwater rea ...
DOI:
10.1016/j.hal.2020.101771

42. A lateral flow strip combined with Cas9 nickase-triggered amplification reaction for dual food-borne pathogen detection

Author:
Luying Wang; Xingying Shen; Ting Wang; Pinru Chen; Nan Qi; Bin-Cheng Yin; Bang-Ce Ye
Source:
Biosensors & bioelectronics 2020 v.165 pp. 112364
ISSN:
0956-5663
Subject:
CRISPR-associated endonuclease 9; DNA; Escherichia coli; Salmonella Typhimurium; bacteria; biosensors; biotin; detection limit; digoxin; food pathogens; food quality; genomics; microbial detection; monitoring; point-of-care systems
Abstract:
... Nucleic acid-based detection methods are accurate and rapid, which are widely-used in food-borne pathogen detection. However, traditional nucleic acid-based detection methods usually rely on special instruments, weakening their practicality for on-site tests in resource-limited locations. In this work, we developed a convenient and affordable method for food-borne pathogen detection based on a lat ...
DOI:
10.1016/j.bios.2020.112364

43. A mathematical model for Xylella fastidiosa epidemics in the Mediterranean regions. Promoting good agronomic practices for their effective control.

Author:
Matteo Brunetti; Vincenzo Capasso; Matteo Montagna; Ezio Venturino
Source:
Ecological modelling 2020 v.432 pp. 109204
ISSN:
0304-3800
Subject:
Olea europaea; Philaenus spumarius; Xylella fastidiosa; bacteria; biomass; cost effectiveness; cultivars; decision making; decline; differential equation; disease control; disease outbreaks; disease transmission; host plants; insect vectors; integrated pest management; mathematical models; olives; orchards; pathogens; plant cultural practices; quantitative analysis; weeds; Italy
Abstract:
... Mathematical models represent essential tools allowing a quantitative analysis of an epidemic system with the consequent identification of possible strategies to control a disease outbreak or even to prevent it. However, to be used in decision-making, they must be carefully parametrized and validated with epidemiological data as well as biological information on the relevant players. Here, benefit ...
DOI:
10.1016/j.ecolmodel.2020.109204

44. A microbiome analysis of equine peripheral dental caries using next generation sequencing

Author:
D. Borkent; R. J. M. Reardon; G. McLACHLAN; L. GLENDINNING; P. M. Dixon
Source:
Equine veterinary journal 2020 v.52 no.1 pp. 67-75
ISSN:
0425-1644
Subject:
Corynebacterium; DNA; Gemella; Streptococcus; Veillonella; bacteria; bacterial communities; dental caries; dental plaque; genes; high-throughput nucleotide sequencing; horses; microbiome; polymerase chain reaction; ribosomal RNA; teeth; United Kingdom
Abstract:
... BACKGROUND: Although, peripheral caries (PC) affects almost half of UK horses, no comprehensive microbiological study has been performed on this disorder. As a high proportion of oral bacteria cannot be conventionally cultured, molecular microbiological techniques such as Next Generation Sequencing are required to examine the complex oral bacteria community. OBJECTIVES: To identify the microbiota ...
DOI:
10.1111/evj.13126

45. A modified hydrological model for assessing effect of pH on fate and transport of Escherichia coli in the Athabasca River basin

Author:
Tesfa Worku Meshesha; Junye Wang; Nigus Demelash Melaku
Source:
Journal of hydrology 2020 v.582 pp. 124513
ISSN:
0022-1694
Subject:
Escherichia coli; Soil and Water Assessment Tool model; bacteria; monitoring; pH; statistics; water quality; watersheds
Abstract:
... Quantifying bacteria fluxes and contaminants from the point and nonpoint sources in a watershed are important for the management of water quality and safeguard public health. Therefore, the appropriate characterization of bacteria from different sources is necessary for understanding of fate and transport of bacteria in watersheds. However, it is challenging to simulate the effects of pH on bacter ...
DOI:
10.1016/j.jhydrol.2019.124513

46. A multiplex PCR assay with a common primer for the detection of eleven foodborne pathogens

Author:
Jing Tao; Wanwan Liu; Wei Ding; Rong Han; Qiang Shen; Yu Xia; Yahan Zhang; Wanping Sun
Source:
Journal of food science 2020 v.85 no.3 pp. 744-754
ISSN:
0022-1147
Subject:
Bacillus cereus; Clostridium botulinum A; Clostridium perfringens; Escherichia coli O157; Listeria monocytogenes; Salmonella enterica; Shigella flexneri; Staphylococcus aureus; Vibrio cholerae; Vibrio parahaemolyticus; Yersinia enterocolitica; bacteria; bacterial culture; food contamination; food inspection; food pathogens; foodborne illness; human health; microbial detection; poisoning; polymerase chain reaction; screening; virulent strains
Abstract:
... Salmonella enterica, Listeria monocytogenes, Shigella flexneri, Escherichia coli O157:H7, Vibrio parahaemolyticus, Staphylococcus aureus, Vibrio cholerae, Clostridium botulinum type A, Bacillus cereus, Clostridium perfringens Alpha toxin, and Yersinia enterocolitica are 11 common foodborne pathogens. Traditional bacterial culture methods for detecting pathogens are time‐consuming and labor‐intensi ...
DOI:
10.1111/1750-3841.15033

47. A new paraprobiotic-based treatment for control of Haemonchus contortus in sheep

Author:
John Sanders; Yue Xie; David Gazzola; Hanchen Li; Ambily Abraham; Kelly Flanagan; Florentina Rus; Melanie Miller; Yan Hu; Sierra Guynn; Austin Draper; Sridhar Vakalapudi; Katherine H. Petersson; Dante Zarlenga; Robert W. Li; Joseph F. Urban; Gary R. Ostroff; Anne Zajac; Raffi V. Aroian
Source:
International Journal for Parasitology: Drugs and Drug Resistance 2020 v.14 no. pp. 230-236
ISSN:
2211-3207
Subject:
Bacillus thuringiensis; Haemonchus contortus; active pharmaceutical ingredients; anthelmintics; bacteria; biopesticides; cattle; cell walls; crystal proteins; eggs; females; gastrointestinal nematodes; hematophagy; larvae; multiple drug resistance; parasitology
Abstract:
... Haemonchus contortus is a critical parasite of goats and sheep. Infection by this blood-feeding gastrointestinal nematode (GIN) parasite has significant health consequences, especially in lambs and kids. The parasite has developed resistance to virtually all known classes of small molecule anthelmintics used to treat it, giving rise in some areas to multidrug resistant parasites that are very diff ...
DOI:
10.1016/j.ijpddr.2020.11.004
CHORUS:
10.1016/j.ijpddr.2020.11.004

48. A newly isolated Streptomyces rimosus strain capable of degrading deltamethrin as a pesticide in agricultural soil

Author:
Masoud Khajezadeh; Kazem Abbaszadeh‐Goudarzi; Hossein Pourghadamyari; Farshid Kafilzadeh
Source:
Journal of basic microbiology 2020 v.60 no.5 pp. 435-443
ISSN:
0233-111X
Subject:
Streptomyces rimosus; agricultural land; agricultural soils; bacteria; biodegradation; bioremediation; biosphere; calcium channels; carbon; deltamethrin; energy; soil ecosystems
Abstract:
... Chemical pesticides or insecticides with complex structures are highly abundant in the biosphere and have inevitable side effects on farmland, natural resources, and human health. Deltamethrin is the most popular and widely used pesticide that disrupts the cellular calcium channels. In the present study, isolated strains of bacteria were examined to determine the ones that were capable of degradin ...
DOI:
10.1002/jobm.201900263

49. A novel and facile immunosensor based on a barometer: Application for rapid analysis of Escherichia coli in waters

Author:
Xuesong Li; Shuaibing Dong; P. Arul; Huizi Liu; Liyuan Liu; Honglei Wang; Qi Zhang; Eric Gyimah; Salome Yakubu; Zhen Zhang
Source:
Talanta 2020 v.214 pp. 120859
ISSN:
0039-9140
Subject:
Escherichia coli; bacteria; carboxylation; catalase; catalytic activity; detection limit; developing countries; glass; hydrogen peroxide; immunosensors; magnetism; nanogold; nanospheres; oxygen; polyclonal antibodies; rapid methods
Abstract:
... A facile immunosensor was constructed based on a barometer indicator using a double-antibody- sandwich method for rapid and sensitive detection of Escherichia coli (E. coli) from water samples. At the present study, Anti- E. coli DH-5 polyclonal antibody was modified through enriching carboxylated magnetic beads and catalase functionalized gold nanoparticles (AuNPs)- loaded nanospheres. The functi ...
DOI:
10.1016/j.talanta.2020.120859

50. A novel endogenous antimicrobial peptide CAMP₂₁₁₋₂₂₅ derived from casein in human milk

Author:
Xing Wang; Yazhou Sun; Fei Wang; Lianghui You; Yan Cao; Ranran Tang; Juan Wen; Xianwei Cui
Source:
Food & function 2020 v.11 no.3 pp. 2291-2298
ISSN:
2042-650X
Subject:
Escherichia coli; amino acids; animal models; antimicrobial peptides; antimicrobial properties; bacteria; beta-casein; breast milk; disk diffusion antimicrobial test; enterocolitis; fluorescence; gastrointestinal diseases; ileum; immunomodulation; mice; milk; minimum inhibitory concentration; mucosa; nucleic acids; scanning electron microscopy; staining
Abstract:
... A large number of bioactive peptides derived from breast milk have been identified to be multifunctional having anti-inflammatory, immunoregulatory and antimicrobial activities. Here, we report that an endogenous peptide located at β-casein 211-225 amino acid from human breast milk (hereafter called CAMP₂₁₁₋₂₂₅) presents specific antimicrobial activity against pathogenic E. coli and Y. enterocolit ...
DOI:
10.1039/c9fo02813g

51. A novel haplotype of ‘Candidatus Liberibacter solanacearum’ found in Apiaceae and Polygonaceae family plants

Author:
Minna Haapalainen; Satu Latvala; Annika Wickström; Jinhui Wang; Minna Pirhonen; Anne I. Nissinen
Source:
European journal of plant pathology 2020 v.156 no.2 pp. 413-423
ISSN:
0929-1873
Subject:
Apiaceae; Candidatus Liberibacter solanacearum; ancestry; bacteria; carrots; discoloration; genetic variation; haplotypes; multilocus sequence typing; parsnips; phylogeny; plant pathogens; Finland; Northern European region
Abstract:
... A previously unknown haplotype of the plant pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) was found in cultivated carrots and parsnips in eastern Finland. That same haplotype was found in western Finland, over 300 km away, in the family Polygonaceae, the species Fallopia convolvulus (wild buckwheat) and Persicaria lapathifolia (pale persicaria) growing as weeds within carrot and parsnip fi ...
DOI:
10.1007/s10658-019-01890-0

52. A novel high-resolution melting analysis-based method for Salmonella genotyping

Author:
Miaomiao Hu; Dong Yang; Xiaoli Wu; Meng Luo; Feng Xu
Source:
Journal of microbiological methods 2020 v.172 pp. 105806
ISSN:
0167-7012
Subject:
DNA; Salmonella; bacteria; butanol; dried milk; food safety; genotyping; melting; salmonellosis; temperature
Abstract:
... To establish a simple and rapid high-resolution melting curve (HRM) method, 5 different strains of Salmonella were identified by adding DNA denaturants at different concentrations into the HRM system to change the characteristics of DNA melting and to obtain different Tm (dissolving temperature) values of DNA from different target bacteria. When the concentration of n-butanol was 7% (v/v), the Tm ...
DOI:
10.1016/j.mimet.2019.105806

53. A novel impedimetric biosensor based on the antimicrobial activity of the peptide nisin for the detection of Salmonella spp.

Author:
Francesca Malvano; Roberto Pilloton; Donatella Albanese
Source:
Food chemistry 2020 v.325 pp. 126868
ISSN:
0308-8146
Subject:
Salmonella; antimicrobial peptides; antimicrobial properties; bacteria; biosensors; cell membranes; detection limit; dielectric spectroscopy; electrochemistry; electrodes; gold; microbial detection; milk; nisin
Abstract:
... Nisin is an antimicrobial peptide with bacterial, fungicidal, virucidal properties, attacking bacteria and destroying the cell membranes. Thanks to its stability to hard conditions, it is a candidate for the use as molecular recognition elements in biosensing platform. In this work, the use of nisin as a biological molecule for the development of a sensitive biosensor for bacteria detection is rep ...
DOI:
10.1016/j.foodchem.2020.126868

54. A novel thermostable serine protease from a metagenomic library derived from marine sediments in the East China Sea

Author:
Jianan Sun; Ping Li; Zhen Liu; Wencan Huang; Xiangzhao Mao
Source:
Applied microbiology and biotechnology 2020 v.104 no.21 pp. 9229-9238
ISSN:
0175-7598
Subject:
Escherichia coli; bacteria; biotechnology; computer simulation; detergents; enzyme activity; genomic libraries; metagenomics; molecular weight; pH; phylogeny; proteolysis; salt tolerance; sequence analysis; serine proteinases; temperature; thermal stability; East China Sea
Abstract:
... Thermal activity and stability are important characteristics for proteases applied in the detergent, pharmaceutical, food, and other green industries. With the intent to discover thermostable novel proteases, we constructed a fosmid metagenomic library from marine sediments in the East China Sea and isolated a clone endowed with high proteolytic activity from this library. Sequence analysis of the ...
DOI:
10.1007/s00253-020-10879-3

55. A phase conversion headspace technique for the determination of anti-anaerobic activity of drug candidate based on the metabolic acidity change in culture medium

Author:
Chun-Yun Zhang; Meng-Hui Li; Ming-Quan Guo
Source:
Journal of chromatography 2020 v.1621 pp. 461024
ISSN:
0021-9673
Subject:
acidity; anaerobes; automation; bacteria; carbon dioxide; chromatography; cross contamination; culture media; drugs; headspace analysis; human diseases; plant extracts; screening; sodium bicarbonate; standard deviation; syringes
Abstract:
... Screening for anti-anaerobic drug candidates is still challenging although the anaerobic bacteria are important sources for human infections, because the method for anti-anaerobic activity testing is not readily available with low-cost and -expertise. We report a novel method for the determination of the anti-anaerobic activity of drug candidates by automated headspace-gas chromatography (HS-GC). ...
DOI:
10.1016/j.chroma.2020.461024

56. A platform for studying the transfer of Chlamydia pneumoniae infection between respiratory epithelium and phagocytes

Author:
Maarit Kortesoja; Raluca Elena Trofin; Leena Hanski
Source:
Journal of microbiological methods 2020 v.171 pp. 105857
ISSN:
0167-7012
Subject:
Chlamydophila pneumoniae; antibodies; bacteria; bioassays; chronic diseases; coculture; enzyme inhibitors; genome; human cell lines; macrophages; magnetism; mitogen-activated protein kinase; monocytes; pathogens; phenotype; quantitative polymerase chain reaction; respiratory mucosa; respiratory tract diseases; risk factors; therapeutics
Abstract:
... The obligate intracellular bacterium, Chlamydia pneumoniae, has been identified as a risk factor for several chronic inflammatory diseases in addition to respiratory tract infections. The dissemination of C. pneumoniae from respiratory tract to secondary sites of infection occurs via infected monocyte / macrophage line cells, in which C. pneumoniae can persist as an antibiotic-refractory phenotype ...
DOI:
10.1016/j.mimet.2020.105857

57. A proteomic study of resistance to Brown Ring disease in the Manila clam, Ruditapes philippinarum

Author:
M. Smits; S. Artigaud; B. Bernay; V. Pichereau; L. Bargelloni; C. Paillard
Source:
Fish & shellfish immunology 2020 v.99 pp. 641-653
ISSN:
1050-4648
Subject:
Ruditapes philippinarum; Vibrio tapetis; amino acid sequences; antibiotics; bacteria; clams; defense mechanisms; disease control; disinfection; energy metabolism; homeostasis; host-pathogen relationships; infectious diseases; juveniles; liquid chromatography; lysosomes; mass spectrometry; mollusc culture; pathogens; phenotype; protein content; proteins; proteomics; transcriptome
Abstract:
... Marine mollusk aquaculture has more than doubled over the past twenty years, accounting for over 15% of total aquaculture production in 2016. Infectious disease is one of the main limiting factors to the development of mollusk aquaculture, and the difficulties inherent to combating pathogens through antibiotic therapies or disinfection have led to extensive research on host defense mechanisms and ...
DOI:
10.1016/j.fsi.2020.02.002

58. A pull-down assay using DNA/RNA-conjugated beads with a customized competition strategy: An effective approach to identify DNA/RNA binding proteins

Author:
Hongyan Sui; Qian Chen; Tomozumi Imamichi
Source:
MethodsX 2020 v.7 pp. 100890
ISSN:
2215-0161
Subject:
DNA; RNA; RNA-binding proteins; bacteria; innate immunity; interferons; interleukin-6; pathogens; signal transduction; viruses
Abstract:
... Innate immune response is insisted upon detection of foreign intracellular DNA or RNA derived from viruses and bacteria. This reaction is important to initiate an effective protective response for the host cells. This crucial step is induced by cytosolic nucleic acids sensors/binding proteins, which triggers the production of type I or type III interferons (IFNs) and proinflammatory cytokines such ...
DOI:
10.1016/j.mex.2020.100890
PubMed:
32373481
PubMed Central:
PMC7195543

59. A review of emerging organic contaminants (EOCs), antibiotic resistant bacteria (ARB), and antibiotic resistance genes (ARGs) in the environment: Increasing removal with wetlands and reducing environmental impacts

Author:
Joan García; María Jesús García-Galán; John W. Day; Raj Boopathy; John R. White; Scott Wallace; Rachael G. Hunter
Source:
Bioresource technology 2020 v.307 pp. 123228
ISSN:
0960-8524
Subject:
antibiotic resistance; antibiotic resistance genes; antibiotics; bacteria; chemical compounds; constructed wetlands; ecosystems; environmental impact; flame retardants; hormones; humans; personal care products; pesticides; plasticizers; surfactants; wastewater; wastewater treatment
Abstract:
... Emerging organic contaminants (EOCs) include a diverse group of chemical compounds, such as pharmaceuticals and personal care products (PPCPs), pesticides, hormones, surfactants, flame retardants and plasticizers. Many of these compounds are not significantly removed in conventional wastewater treatment plants and are discharged to the environment, presenting an increasing threat to both humans an ...
DOI:
10.1016/j.biortech.2020.123228

60. A review of nano-based materials used as flocculants for water treatment

Author:
J. Jumadi; A. Kamari; J. S. J. Hargreaves; N. Yusof
Source:
International journal of environmental science and technology 2020 v.17 no.7 pp. 3571-3594
ISSN:
1735-1472
Subject:
bacteria; cost effectiveness; dyes; flocculants; flocculation; heavy metals; industrialization; nanoparticles; physicochemical properties; water pollution; water treatment
Abstract:
... In recent years, the development of nanoparticle materials for water treatment has received great attention. From an industrial technological view point, the application of nanomaterials in the twenty-first century for water treatment will be the focal point of advanced materials design, processing and progress. In this context, the potential utilisation of different types of flocculants to clean ...
DOI:
10.1007/s13762-020-02723-y

61. A review of pathogens in selected Baltic Sea indicator species

Author:
Christian Sonne; Jan Lakemeyer; Jean-Pierre Desforges; Igor Eulaers; Sara Persson; Iben Stokholm; Anders Galatius; Stephanie Gross; Katharina Gonnsen; Kristina Lehnert; Emilie U. Andersen-Ranberg; Morten Tange Olsen; Rune Dietz; Ursula Siebert
Source:
Environment international 2020 v.137 pp. 105565
ISSN:
0160-4120
Subject:
Anisakidae; Anser; Brucella; Erysipelothrix rhusiopathiae; Haliaeetus albicilla; Halichoerus grypus; Herpesviridae; Leptospira interrogans; Mycoplasma; Orthomyxoviridae; Phoca vitulina; Phocoena phocoena; Poxviridae; Pusa hispida; Somateria mollissima; Streptococcus; animal health; bacteria; colon; diet; distemper; ecological function; ecosystems; environmental health; food webs; geese; global warming; health status; human health; indicator species; influenza; liver; parasites; parasitoses; pathogens; pollutants; population dynamics; risk; seals; seroprevalence; toxic substances; viruses; wildlife; zoonoses; Baltic Sea
Abstract:
... Here we review the state-of-the-art of pathogens in select marine and terrestrial key species of the Baltic Sea, i.e. ringed seal (Pusa hispida), harbour seal (Phoca vitulina), grey seal (Halichoerus grypus), harbour porpoise (Phocoena phocoena), common eider (Somateria mollissima), pink-footed goose (Anser brachyrhynchus) and white-tailed eagle (Haliaeetus albicilla). This review is the first to ...
DOI:
10.1016/j.envint.2020.105565

62. A rough Brucella mutant induced macrophage death depends on secretion activity of T4SS, but not on cellular Txnip- and Caspase-2-mediated signaling pathway

Author:
Mingxing Tian; Yi Yin; Zhengmin Lian; Zichen Li; Meiying Song; Hai Hu; Xiang Guan; Chan Ding; Shaohui Wang; Tao Li; Jingjing Qi; Shengqing Yu
Source:
Veterinary microbiology 2020 v.244 pp. 108648
ISSN:
0378-1135
Subject:
Brucella; bacteria; caspase-2; cytotoxicity; death; endoplasmic reticulum; macrophages; mutants; secretion; signal transduction; transfection
Abstract:
... Brucella is a facultative intracellular bacterium, dividing into smooth- and rough-type Brucella. Smooth-type Brucella can dissociate into rough mutants with cytotoxicity for macrophages during infection, which is critical for Brucella egress and dissemination. However, the mechanism of cytotoxicity infected by rough Brucella is incomplete. In this study, we verified that a rough-type Brucella (RB ...
DOI:
10.1016/j.vetmic.2020.108648

63. A simple, inexpensive, and rapid method to assess antibiotic effectiveness against exoelectrogenic bacteria

Author:
Yang Gao; Jihyun Ryu; Lin Liu; Seokheun Choi
Source:
Biosensors & bioelectronics 2020 v.168 pp. 112518
ISSN:
0956-5663
Subject:
Pseudomonas aeruginosa; antibiotic resistance; bacteria; bacterial growth; biochemical pathways; biosensors; electricity; electrodes; electrons; energy; gentamicin; hospitals; metabolism; microbial fuel cells; minimum inhibitory concentration; phenotype; rapid methods
Abstract:
... A sufficiently fast and simple antimicrobial susceptibility testing (AST) is urgently required to guide effective antibiotic usages and to surveil the antimicrobial resistance rate. Here, we establish a rapid, quantitative, and high-throughput phenotypic AST by measuring electrons transferred from the interiors of microbial cells to external electrodes. Because the transferred electrons are based ...
DOI:
10.1016/j.bios.2020.112518

64. A smart microfluidic platform for rapid multiplexed detection of foodborne pathogens

Author:
Sarah Azinheiro; Krishna Kant; Mohammad-Ali Shahbazi; Alejandro Garrido-Maestu; Marta Prado; Lorena Dieguez
Source:
Food control 2020 v.114 pp. 107242
ISSN:
0956-7135
Subject:
DNA; Salmonella; automation; bacteria; crystals; detection limit; food industry; food packaging; food pathogens; ligands; quantitative polymerase chain reaction
Abstract:
... Rapid and sensitive detection of foodborne pathogens in food industry is of high importance in day-to-day practice to ensure safe food. To address this issue, multiple foodborne pathogens are targeted for rapid identification based in DNA amplification. A 3D PDMS sponge was fabricated using salt crystals as scarifying mold and functionalized with a ligand, apolipoprotein-H (ApoH), to test bacteria ...
DOI:
10.1016/j.foodcont.2020.107242

65. A soft tick Ornithodoros moubata salivary protein OmCI is a potent inhibitor to prevent avian complement activation

Author:
Amber M. Frye; Thomas M. Hart; Danielle M. Tufts; Sanjay Ram; Maria A. Diuk-Wasser; Peter Kraiczy; Anna M. Blom; Yi-Pin Lin
Source:
Ticks and tick-borne diseases 2020 v.11 no.2 pp. 101354
ISSN:
1877-959X
Subject:
Lyme disease; Ornithodoros moubata; amino acids; bacteria; blood meal; complement; erythrocytes; inflammation; mammals; quails; ticks; wild birds
Abstract:
... Complement is a key first line innate host defense system in the blood of vertebrates. Upon activation, this powerful defense mechanism can elicit inflammatory responses, lyse non-self-cells, or mark them for opsonophagocytic removal. Blood-feeding arthropods thus require the ability to block host complement activation in the bloodmeal to prevent undesired cell or tissue damage during feeding. The ...
DOI:
10.1016/j.ttbdis.2019.101354
PubMed:
31866440
PubMed Central:
PMC6997930

66. A stable simultaneous anammox, denitrifying anaerobic methane oxidation and denitrification process in integrated vertical constructed wetlands for slightly polluted wastewater

Author:
Tao Huang; Wei Liu; Yi Zhang; Qiaohong Zhou; Zhenbin Wu; Feng He
Source:
Environmental pollution 2020 v.262 pp. 114363
ISSN:
0269-7491
Subject:
Archaea; anaerobic ammonium oxidation; bacteria; biodegradation; constructed wetlands; denitrification; equations; greenhouse gas emissions; methane; nitrogen; nitrous oxide; nutrients; oxidation; water pollution
Abstract:
... Anaerobic ammonium oxidation (anammox), denitrifying anaerobic methane oxidation bacteria (DAMO) have received great attention for their excellent performance in nitrogen removal. However, not much study focused on the co-existence of anammox, DAMO, and denitrification in constructed wetlands, not to mention the advantage of their application in mitigating the necessary byproduct nitrous oxide (N₂ ...
DOI:
10.1016/j.envpol.2020.114363

67. A statistical approach for enhanced production of β-galactosidase from Paracoccus sp. and synthesis of galacto-oligosaccharides

Author:
Pooja Kalathinathan; Gothandam Kodiveri Muthukaliannan
Source:
Folia microbiologica 2020 v.65 no.5 pp. 811-822
ISSN:
0015-5632
Subject:
Paracoccus marcusii; bacteria; equations; galactooligosaccharides; galactose; hydrolysis; lactose; models; response surface methodology; statistical analysis; temperature; yeast extract; Bay of Bengal
Abstract:
... A new β-galactosidase-producing bacterium KGP, isolated from the Bay of Bengal, was identified as Paracoccus marcusii through morphology, biochemistry and 16S rRNA sequencing. This study is the first report on the production of β-galactosidase from P. marcusii. The medium components for the high yield of β-galactosidase were optimised using response surface methodology (RSM). A set of 17 experimen ...
DOI:
10.1007/s12223-020-00791-8

68. A timetree for phytoplasmas (Mollicutes) with new insights on patterns of evolution and diversification

Author:
Yanghui Cao; Valeria Trivellone; Christopher H. Dietrich
Source:
Molecular phylogenetics and evolution 2020 v.149 pp. 106826
ISSN:
1055-7903
Subject:
Phytoplasma; Scaphoideus titanus; Spermatophytina; age determination; bacteria; embryophytes; genes; hosts; insect vectors; methionyl aminopeptidase; nucleotide sequences; phylogeny; ribosomal RNA; sieve elements; vascular plants; Europe
Abstract:
... The first comprehensive timetree is presented for phytoplasmas, a diverse group of obligate intracellular bacteria restricted to phloem sieve elements of vascular plants and tissues of their hemipteran insect vectors. Maximum likelihood-based phylogenetic analysis of DNA sequence data from the 16S rRNA and methionine aminopeptidase (map) genes yielded well resolved estimates of phylogenetic relati ...
DOI:
10.1016/j.ympev.2020.106826

69. Abomasitis in calves: A retrospective cohort study of 23 cases (2006‐2016)

Author:
Eloi Guarnieri; Gilles Fecteau; Julie Berman; André Desrochers; Marie Babkine; Sylvain Nichols; David Francoz
Source:
Journal of veterinary internal medicine 2020 v.34 no.2 pp. 1018-1027
ISSN:
0891-6640
Subject:
Clostridium; Escherichia coli; anorexia; bacteria; blood serum; calves; cohort studies; creatinine; disease course; enzyme activity; gamma-glutamyltransferase; hypoproteinemia; medical records; mortality; necropsy; neutrophils; prognosis; signs and symptoms (animals and humans); statistical analysis; telephones; veterinary medicine
Abstract:
... BACKGROUND: Abomasitis is a syndrome affecting young milk‐fed calves. The current veterinary literature describes mainly its necropsy findings. OBJECTIVES: To describe the clinical presentation, complementary tests, treatments, and case‐fatality rate of calves with a clinical diagnosis of abomasitis and to identify potential factors associated with outcome. METHODS: Observational retrospective coh ...
DOI:
10.1111/jvim.15726
PubMed:
32056284
PubMed Central:
PMC7096666

70. Abundance and characterization of microorganisms isolated from oil palm empty fruit bunches waste under aerobic, anaerobic, and facultative anaerobic conditions

Author:
DERMIYATI DERMIYATI; RADIX SUHARJO; MARELI TELAUMBANUA; RULLY YOSITA; ANGGI WINANDA SARI; ANIS PUJI ANDAYANI
Source:
Biodiversitas 2020 v.21 no.9 pp. -
ISSN:
2085-4722
Subject:
Elaeis guineensis; agar; cellulose; color; cucumbers; disease severity; fruit extracts; fruits; hypersensitivity; palm oils; peptones; plate count; potatoes; tobacco; virulence; wastes
Abstract:
... Dermiyati, Suharjo R, Telaumbanua M, Yosita R, Sari AW, Andayani AP. 2020. Abundance and characterization of microorganisms isolated from oil palm empty fruit bunches waste under aerobic, anaerobic, and facultative anaerobic conditions. Biodiversitas 21: 4213-4220. Increased production of palm oil causes an increase in oil palm empty fruit bunches waste, while the utilization of the waste has not ...
DOI:
10.13057/biodiv/d210936

71. Acacia longifolia: A Host of Many Guests Even after Fire

Author:
Joana Guedes de Jesus; Rogério Tenreiro; Cristina Máguas; Helena Trindade
Source:
Diversity 2020 v.12 no.6 pp. -
ISSN:
1424-2818
Subject:
Acacia longifolia; Bradyrhizobium; Paraburkholderia; Pseudomonas; ammonia; bacteria; bacterial communities; ecosystems; germination; isotope labeling; leaves; legumes; nitrogen; nitrogen fixation; nodulation; plant nitrogen content; ribosomal RNA; sequence analysis; stable isotopes; symbiosis; wildfires
Abstract:
... Acacia longifolia is a worldwide invader that cause damage in ecosystems, expanding largely after wildfires, which promote germination of a massive seed bank. As a legume, symbiosis is determinant for adaptation. Our study aims to isolate a wider consortium of bacteria harboured in nodules, including both nitrogen and non-nitrogen fixers. Furthermore, we aim to evaluate the effects of fire in nodu ...
DOI:
10.3390/d12060250

72. Accelerated biodegradation of p-tert-butylphenol in the Phragmites australis rhizosphere by phenolic root exudates

Author:
Dan A.; Nichen Zhang; Rongliang Qiu; Charlie Li; Shizhong Wang; Zhuobiao Ni
Source:
Environmental and experimental botany 2020 v.169 pp. 103891
ISSN:
0098-8472
Subject:
4-hydroxybenzoic acid; Phragmites australis; bacteria; biodegradation; caffeic acid; ferulic acid; hydrolases; hydroxylation; p-coumaric acid; rhizosphere; root exudates
Abstract:
... Phenolic root exudates (PREs) released from plants are potentially effective for the degradation of aromatic compounds, yet the inherent process and mechanism remain insufficiently elucidated. In this study, we selected four representative PREs of P. australis, namely p-hydroxybenzoic acid (PHA), p-coumaric acid (PCA), caffeic acid (CA), and ferulic acid (FA), to investigate the accelerated biodeg ...
DOI:
10.1016/j.envexpbot.2019.103891

73. Accurate MRSA identification through dual-functional aptamer and CRISPR-Cas12a assisted rolling circle amplification

Author:
Liqi Xu; Qingqing Dai; Zhanying Shi; Xiaotao Liu; Lu Gao; Zhengzheng Wang; Xiaoyun Zhu; Zhen Li
Source:
Journal of microbiological methods 2020 v.173 pp. 105917
ISSN:
0167-7012
Subject:
antibiotic resistance; bacteria; chemical bonding; drugs; infectious diseases; methicillin; methicillin-resistant Staphylococcus aureus; microbial detection; morbidity; mortality; nucleic acids; oligonucleotides
Abstract:
... Infectious diseases have become one of the most threatening global challenge with high morbidity and mortality, bringing great difficulties to clinical diagnosis and treatment. New strategy for high-specific and sensitive bacteria detection are urgently needed in facing the crisis of worldwide antibiotic resistance. Herein, a novel method through the integration of dual aptamer technology and CRIS ...
DOI:
10.1016/j.mimet.2020.105917

74. Acholeplasma equirhinis sp. nov. isolated from respiratory tract of horse (Equus caballus) and Mycoplasma procyoni sp. nov. isolated from oral cavity of raccoon (Procyon lotor)

Author:
Dmitriy V. Volokhov; Yamei Gao; Maureen K. Davidson; Vladimir E. Chizhikov
Source:
Archives of microbiology 2020 v.202 no.2 pp. 411-420
ISSN:
0302-8933
Subject:
Acholeplasma; Mycoplasma; Procyon lotor; anaerobes; antibiotic resistance; arginine; bacteria; blood serum; genetic analysis; glucose; horses; loci; mouth; nasopharynx; new species; penicillins; phenotype; phylogeny; respiratory system; transmission electron microscopy; urea; Canada; United Kingdom
Abstract:
... We describe two novel species of Acholeplasma sp. strain N93 and Mycoplasma sp. strain LR5794 which were isolated from the nasopharynx of a horse from the United Kingdom and from the oral cavity of a North American raccoon from Canada, respectively. These strains were phenotypically and genetically characterized and compared to other established Mycoplasma and Acholeplasma species. Both strains ar ...
DOI:
10.1007/s00203-019-01786-x

75. Acquisition of a type VI secretion system is critical for Pseudomonas plecoglossicida induced granulomas in fish internal organs

Author:
Zhen Tao; Yue Xu; Suming Zhou; Dong Qian; Minhai Liu; Weiye Li; Wenjun Xu; Xiaojun Yan
Source:
Aquaculture 2020 v.516 pp. 734629
ISSN:
0044-8486
Subject:
Larimichthys crocea; Pseudomonas plecoglossicida; bacteria; bioinformatics; fish; fish diseases; granuloma; horizontal gene transfer; kidneys; liver; models; multigene family; mutants; pathogenesis; pathogens; spleen; type VI secretion system; virulence; virulent strains
Abstract:
... Pseudomonas plecoglossicida is one of the most prevalent pathogens affecting the large yellow croaker (LYC; Larimichthys crocea), causing a disease characterized by granuloma formation in the spleen, kidney and liver. Previously we discovered two active type VI secretion systems (T6SSs) in P. plecoglossicida XSDHY-P (a fish pathogenic strain). However, whether these systems are involved in bacteri ...
DOI:
10.1016/j.aquaculture.2019.734629

76. Acute hypercortisolemia inhibits innate immune parameters in Piaractus mesopotamicus experimentally infected with Aeromonas hydrophila

Author:
Victor Alexander Cueva-Quiroz; Jefferson Yunis-Aguinaga; Fernando Carlos Ramos-Espinoza; Flávio Ruas de Moraes; Julieta Rodini Engrácia de Moraes
Source:
Aquaculture 2020 v.523 pp. 735231
ISSN:
0044-8486
Subject:
Aeromonas hydrophila; Piaractus mesopotamicus; antagonists; bacteria; bacterial infections; blood glucose; blood plasma; blood sampling; body weight; cortisol; diet; fish; fish diseases; freshwater; immune response; innate immunity; lymphocytes; metyrapone; phagocytes; swim bladder
Abstract:
... Cortisol is a key modulator of the immune response in fish, and considered an essential molecule for adaptation of animals to stress and overcoming the stressor. Antagonist effects, pro and anti-inflammatory have been associated to acute increases in cortisol levels, however knowledge about the mechanisms of this regulation in tropical teleosts is scarce. The effects of pharmacological inhibition ...
DOI:
10.1016/j.aquaculture.2020.735231

77. Adaptation of methane recovery, sludge characteristics and evolution of microbial community response to elevated nitrate under the methanogenic condition

Author:
Xiaohui Yi; Renren Wu; Donghui Han; Yan Li; Xiaoyong Li; Guoqiang Niu; Mingzhi Huang; Guang-Guo Ying
Source:
Journal of cleaner production 2020 v.258 pp. 120713
ISSN:
0959-6526
Subject:
Bacteroidetes; Brachymonas; Chloroflexi; Enterobacteriaceae; Methanobacterium; Methanosaeta; Pseudomonas; Rhodocyclaceae; Smithella; acetates; bacteria; butyrates; chemical oxygen demand; denitrification; engineering; heterocyclic compounds; high-throughput nucleotide sequencing; methane; methane production; methanogens; microbial communities; nitrate nitrogen; nitrates; propionic acid; sludge; wastewater treatment
Abstract:
... Coupling of methanogenesis and denitrification with elevated nitrate under the methanogenic condition shows potential advantages for (N-) heterocyclic compounds removal and methane recovery simultaneously. However, methane production, sludge characteristics and microbial evolution response to elevated nitrate were seldom reported. Here, an experiment lasing about 300 days under the methanogenic co ...
DOI:
10.1016/j.jclepro.2020.120713

78. Adipostatins E-J, new potent antimicrobials identified as inhibitors of coenzyme-A biosynthesis

Author:
Lyanne Gómez-Rodríguez; Pamela J. Schultz; Giselle Tamayo-Castillo; Garry D. Dotson; David H. Sherman; Ashootosh Tripathi
Source:
Tetrahedron letters 2020 v.61 no.5 pp. 151469
ISSN:
0040-4039
Subject:
Streptomyces; antibiotics; bacteria; biosynthesis; chemical reactions; chemical structure; coenzyme A; cysteamine; drugs; enzymes; inhibitory concentration 50; virulent strains
Abstract:
... Phosphopantetheine is a key structural element in biological acyl transfer reactions found embedded within coenzyme A (CoA). Phosphopantothenoylcysteine synthetase (PPCS) is responsible for installing a cysteamine group within phosphopantetheine. Therefore, it holds considerable potential as a drug target for developing new antimicrobials. In this study, we adapted a biochemical assay specific for ...
DOI:
10.1016/j.tetlet.2019.151469

79. Adjuvant activity of Mycobacteria-derived mycolic acids

Author:
Mio Kubota; Ei'ichi Iizasa; Yasushi Chuuma; Hideyasu Kiyohara; Hiromitsu Hara; Hiroki Yoshida
Source:
Heliyon 2020 v.6 no.5 pp. e04064
ISSN:
2405-8440
Subject:
Mycobacterium; adjuvants; alum; animal welfare; bacteria; cell walls; chemokines; dendritic cells; humoral immunity; inflammation; innate immunity; neoplasm progression; vaccination
Abstract:
... Successful vaccination, especially with safe vaccines such as component/subunit vaccines, requires proper activation of innate immunity and, for this purpose, adjuvant is used. For clinical use, alum is frequently used while, for experimental use, CFA, containing Mycobacterial components, was often used. In this report, we demonstrated that mycolic acids (MA), major and essential lipid components ...
DOI:
10.1016/j.heliyon.2020.e04064

80. Adsorption and biotransformation of anthocyanin glucosides and quercetin glycosides by Oenococcus oeni and Lactobacillus plantarum in model wine solution

Author:
Apramita Devi; Anu‐Appaiah Konerira Aiyappaa; Andrew L Waterhouse
Source:
Journal of the science of food and agriculture 2020 v.100 no.5 pp. 2110-2120
ISSN:
0022-5142
Subject:
Lactobacillus plantarum; Oenococcus oeni; adsorption; aldehydes; bacteria; biotransformation; color; electrostatic interactions; enzyme activity; gallic acid; glucosides; glycosidases; malolactic fermentation; model food systems; mouthfeel; myrtillin; odors; quercetin; sugars; syringic acid; vanillic acid; wines
Abstract:
... BACKGROUND: Anthocyanins and flavonols play a significant role in contributing to wine color and mouthfeel, and the interaction of malolactic fermentation with these compounds is not well known. Here we investigated the adsorption of these compounds by Oenococcus oeni and Lactobacillus plantarum. RESULTS: Delphinidin‐3‐glucoside (D3G) was adsorbed the most, followed by malvidin‐3‐glucoside (M3G) a ...
DOI:
10.1002/jsfa.10234

81. Advanced liver steatosis accompanies an increase in hepatic inflammation, colonic, secondary bile acids and Lactobacillaceae/Lachnospiraceae bacteria in C57BL/6 mice fed a high-fat diet

Author:
Huawei Zeng; Kate J. Larson; Wen-Hsing Cheng; Michael R Bukowski; Bryan D. Safratowich; Zhenhua Liu; Reza Hakkak
Source:
Journal of nutritional biochemistry 2020 v.78 pp. 108336
ISSN:
0955-2863
Subject:
Lachnospiraceae; Lactobacillaceae; animal disease models; bacteria; bile acids; body fat; cytoplasmic inclusions; droplets; fatty liver; gene expression regulation; genes; high fat diet; histology; inducible nitric oxide synthase; inflammation; interleukin-6; life cycle assessment; lipids; males; nicotinamide N-methyltransferase; obesity; pathogenesis; quantitative polymerase chain reaction; selenoproteins; sequence analysis; tumor necrosis factor-alpha
Abstract:
... Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in Western countries, and the gut-liver axis is implicated in liver disease pathogenesis. We hypothesize that advanced liver steatosis accompanies an increase in hepatic inflammation, colonic secondary bile acids (BAs) and secondary BA-producing bacteria in mice fed a high-fat (HF) diet model of obesity. Four-week ol ...
DOI:
10.1016/j.jnutbio.2019.108336

82. Advances in antimicrobial peptides-based biosensing methods for detection of foodborne pathogens: A review

Author:
Zhaohui Qiao; Yingchun Fu; Chunyang Lei; Yanbin Li
Source:
Food control 2020 v.112 pp. 107116
ISSN:
0956-7135
Subject:
antimicrobial peptides; bacteria; biosensors; electrochemistry; food pathogens; foodborne illness; human health; microfluidic technology; nanomaterials; rapid methods
Abstract:
... Foodborne diseases caused by pathogens are great threats to human health. Rapid detection of foodborne pathogens at an early stage is imperative for preventing the outbreak of diseases. The identification and detection of foodborne pathogens by biosensors have attracted great attention due to their high sensitivity, nearly real-time quantification without enrichment and the possibility of on-site ...
DOI:
10.1016/j.foodcont.2020.107116

83. Adverse effects of oxo-degradable plastic leachates in freshwater environment

Author:
Simona Schiavo; Maria Oliviero; Salvatore Chiavarini; Sonia Manzo
Source:
Environmental science and pollution research international 2020 v.27 no.8 pp. 8586-8595
ISSN:
0944-1344
Subject:
Daphnia magna; Lepidium sativum; Sinapis alba; Sorghum bicolor subsp. bicolor; Vibrio fischeri; Vicia faba; additives; adverse effects; bacteria; biodegradability; freshwater; leachates; luminescence; metals; polyethylene; polypropylenes; polystyrenes; reproduction; toxicity; toxicity testing; wastes
Abstract:
... The production of biodegradable plastics is considered to be a way to reduce plastic waste issue. Among others, oxo-degradant additives enable a faster degradation of plastics in the environment. However, the introduction of these new materials could provoke the release of substances potentially toxic in the environment. This work determined and compared the toxicity of leachates from various addi ...
DOI:
10.1007/s11356-019-07466-z

84. Aequoribacter fuscus gen. nov., sp. nov., a new member of the family Halieaceae, isolated from coastal seawater

Author:
Shan-Hui Li; Jaeho Song; Ilnam Kang; Juchan Hwang; Jang-Cheon Cho
Source:
journal of microbiology 2020 v.58 no.6 pp. 463-471
ISSN:
1225-8873
Subject:
amino acids; bacteria; coastal water; genome; new genus; nucleotide sequences; oxidation; phenol; phosphatidylethanolamines; phylogeny; quinones; rhodopsin; sulfur; Yellow Sea
Abstract:
... A Gram-stain-negative, rod-shaped, obligately aerobic, nonflagellated, and chemoheterotrophic bacterium, designated IMCC3088ᵀ, was isolated from coastal seawater of the Yellow Sea. The 16S rRNA gene sequence analysis indicated that this strain belonged to the family Halieaceae which shared the highest sequence similarities with Luminiphilus syltensis NOR5-1Bᵀ (94.5%) and Halioglobus pacificus S1-7 ...
DOI:
10.1007/s12275-020-0206-1

85. Aerogel from Sustainably Grown Bacterial Cellulose Pellicles as a Thermally Insulative Film for Building Envelopes

Author:
Blaise Fleury; Eldho Abraham; Joshua A. De La Cruz; Varun S. Chandrasekar; Bohdan Senyuk; Qingkun Liu; Vladyslav Cherpak; Sungoh Park; Jan Bart ten Hove; Ivan I. Smalyukh
Source:
ACS applied materials & interfaces 2020 v.12 no.30 pp. 34115-34121
ISSN:
1944-8252
Subject:
Gluconacetobacter hansenii; aerogels; bacteria; beers; brewing industry; buildings; cellulose; energy; films (materials); food waste; heat flow; insulating materials; nanomaterials; thermal conductivity
Abstract:
... Improving building energy performance requires the development of new highly insulative materials. An affordable retrofitting solution comprising a thin film could improve the resistance to heat flow in both residential and commercial buildings and reduce overall energy consumption. Here, we propose cellulose aerogel films formed from pellicles produced by the bacteria Gluconacetobacter hansenii a ...
DOI:
10.1021/acsami.0c08879

86. Aerosol-Assisted Synthesis of Tailor-Made Hollow Mesoporous Silica Microspheres for Controlled Release of Antibacterial and Anticancer Agents

Author:
Jalal Poostforooshan; Sabrina Belbekhouche; Masoom Shaban; Vanessa Alphonse; Damien Habert; Noureddine Bousserrhine; José Courty; Alfred P. Weber
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 6885-6898
ISSN:
1944-8252
Subject:
Escherichia coli; alginates; amoxicillin; antagonists; antineoplastic activity; antineoplastic agents; apoptosis; bacteria; biocompatibility; cell growth; chitosan; drug carriers; microparticles; nanoparticles; nanospheres; neoplasm cells; octoxynol; pH; pancreatic neoplasms; particle size; polyallylamines; porosity; porous media; silica; spray drying
Abstract:
... Hollow mesoporous silica microsphere (HMSM) particles are one of the most promising vehicles for efficient drug delivery owing to their large hollow interior cavity for drug loading and the permeable mesoporous shell for controlled drug release. Here, we report an easily controllable aerosol-based approach to produce HMSM particles by continuous spray-drying of colloidal silica nanoparticles and E ...
DOI:
10.1021/acsami.9b20510

87. Agricultural waste materials enhance protease production by Bacillus subtilis B22 in submerged fermentation under blue light-emitting diodes

Author:
Punniyakotti Elumalai; Jeong-Muk Lim; Yool-Jin Park; Min Cho; Patrick J. Shea; Byung-Taek Oh
Source:
Bioprocess and biosystems engineering 2020 v.43 no.5 pp. 821-830
ISSN:
1615-7591
Subject:
Bacillus subtilis; EDTA (chelating agent); agricultural wastes; anionic surfactants; bacteria; calcium; casein; cobalt; copper; extracellular enzymes; fluorescent lighting; iron; kimchi; light emitting diodes; magnesium; manganese; mercury; nickel; nonionic surfactants; oxidants; pH; peanut cake; proteinases; ribosomal RNA; sequence analysis; solvents; submerged fermentation; zinc
Abstract:
... Bacillus bacteria have major utility in large-scale production of industrial enzymes, among which proteases have particular importance. B. subtilis B22, an aerobic and chemotrophic strain, was isolated from kimchi and identified by 16S rRNA gene sequencing. Extracellular protease production was determined in basic medium, with 1% (w/v) casein as substrate, by submerged fermentation at 37 °C under ...
DOI:
10.1007/s00449-019-02277-5

88. Agrobacterium rhizogenes-mediated transformation of grain (Amaranthus hypochondriacus) and leafy (A. hybridus) amaranths

Author:
Andrea P. Castellanos-Arévalo; Andrés A. Estrada-Luna; José L. Cabrera-Ponce; Eliana Valencia-Lozano; Humberto Herrera-Ubaldo; Stefan de Folter; Alejandro Blanco-Labra; John P. Délano-Frier
Source:
Plant cell reports 2020 v.39 no.9 pp. 1143-1160
ISSN:
0721-7714
Subject:
Agrobacterium; Amaranthus cruentus; Amaranthus hypochondriacus; ancestry; bacteria; calcium; callus; cotyledons; cytokinins; genetic transformation; genetically modified organisms; germination; green fluorescent protein; isopentenyladenine; osmotic stress; pH; phosphoric acid; plantlets; red light; sucrose
Abstract:
... KEY MESSAGE: Transgenic A. hypochondriacus and A. hybridus roots were generated. Further, a distinct plant regeneration program via somatic embryos produced from hairy roots was established. Work was implemented to develop an optimized protocol for root genetic transformation of the three grain amaranth species and A. hybridus, their presumed ancestor. Transformation efficiency was species-specifi ...
DOI:
10.1007/s00299-020-02553-9

89. Agrobacterium tumefaciens ferritins play an important role in full virulence through regulating iron homeostasis and oxidative stress survival

Author:
Jing Yang; Xiaoyue Pan; Yujuan Xu; Yuan Li; Nan Xu; Zhiwei Huang; Jingyang Ye; Dawei Gao; Minliang Guo
Source:
Molecular plant pathology 2020 v.21 no.9 pp. 1167-1178
ISSN:
1464-6722
Subject:
Agrobacterium radiobacter; DNA-binding proteins; bacteria; cytosol; ferritin; genes; homeostasis; hydrogen peroxide; iron; mutants; neoplasms; oxidative stress; pathogenesis; plant pathogens; starvation; stress tolerance; toxicity; virulence
Abstract:
... Ferritins are a large family of iron storage proteins, which are used by bacteria and other organisms to avoid iron toxicity and as a safe iron source in the cytosol. Agrobacterium tumefaciens, a phytopathogen, has two ferritin‐encoding genes: atu2771 and atu2477. Atu2771 is annotated as a Bfr‐encoding gene (Bacterioferritin, Bfr) and atu2477 as a Dps‐encoding gene (DNA binding protein from starve ...
DOI:
10.1111/mpp.12969

90. Agronomic Responses of Soybean Genotypes to Starter Nitrogen Fertilizer Rate

Author:
Violeta Mandić; Snežana Đorđević; Zorica Bijelić; Vesna Krnjaja; Vlada Pantelić; Aleksandar Simić; Vesna Dragičević
Source:
Agronomy 2020 v.10 no.4 pp. -
ISSN:
2073-4395
Subject:
Bradyrhizobium; bacteria; crop production; fertilizer rates; genotype; growing season; lipid content; mineralization; nitrogen; nitrogen fertilizers; protein content; rain; soil; soil organic nitrogen; soybeans; starter fertilizers; Serbia
Abstract:
... The main nitrogen (N) sources in soybean production originate from soil fixing bacteria Bradyrhizobium spp. and from mineralization of soil organic N. These sources of N are often not sufficient to cover the N needs of the soybean. The present two-year field study aimed to evaluate the effects of soybean genotypes (Valjevka and Galina) and rates of starter fertilizer N (0, 30, 60, and 90 kg ha⁻¹) ...
DOI:
10.3390/agronomy10040535

91. Air-permeable, multifunctional, dual-energy-driven MXene-decorated polymeric textile-based wearable heaters with exceptional electrothermal and photothermal conversion performance

Author:
Xiaoya Liu; Xiuxiu Jin; Lei Li; Jianfeng Wang; Yanyu Yang; Yanxia Cao; Wanjie Wang
Source:
Journal of materials chemistry A 2020 v.8 no.25 pp. 12526-12537
ISSN:
2050-7496
Subject:
alkali treatment; bacteria; coatings; electromagnetic interference; energy conversion; fabrics; heat; heaters; humans; hydrogen bonding; permeability; polymers; solar radiation; temperature; thermotherapy
Abstract:
... Multifunctional, high-performance wearable heaters are highly desired for future human health-related applications but are generally hindered by the absence of flexibility, air-permeability, and clothes-knittability. Here, polymeric textile-based wearable heaters are constructed by decorating an MXene on the fiber surface via a simple solution dip coating technique. Alkali pretreatment of textiles ...
DOI:
10.1039/d0ta03048a

92. Airborne bacterial communities and antibiotic resistance gene dynamics in PM2.5 during rainfall

Author:
Wei Ouyang; Bing Gao; Hongguang Cheng; Lei Zhang; Yidi Wang; Chunye Lin; Jing Chen
Source:
Environment international 2020 v.134 pp. 105318
ISSN:
0160-4120
Subject:
Cyanobacteria; Pseudomonadaceae; airborne microorganisms; alpha-Proteobacteria; antibiotic resistance genes; bacteria; bacterial communities; community structure; health effects assessments; monitoring; particulates; physicochemical properties; public health; rain; rain intensity; relative humidity; risk assessment; statistical analysis; temperature; variance; washing; China
Abstract:
... The biotoxicity and public health effects of airborne bacteria and antibiotic resistance genes (ARGs) in fine particulate matter (PM₂.₅) are being increasingly recognized. The characteristics of bacterial community composition and ARGs in PM₂.₅ under different rainfall conditions were studied based on the on-site synchronous measurements in downtown Beijing. Marked differences were evident in the ...
DOI:
10.1016/j.envint.2019.105318

93. Akkermansia and Microbial Degradation of Mucus in Cats and Dogs: Implications to the Growing Worldwide Epidemic of Pet Obesity

Author:
Jose F. Garcia-Mazcorro; Yasushi Minamoto; Jorge R. Kawas; Jan S. Suchodolski; Willem M. de Vos
Source:
Veterinary sciences 2020 v.7 no.2 pp. -
ISSN:
2306-7381
Subject:
Verrucomicrobia; bacteria; biodegradation; cats; digestive tract; dogs; mice; mucus; obesity; surveys
Abstract:
... Akkermansia muciniphila is a mucin-degrading bacterium that has shown the potential to provide anti-inflammatory and anti-obesity effects in mouse and man. We here focus on companion animals, specifically cats and dogs, and evaluate the microbial degradation of mucus and its health impact in the context of the worldwide epidemic of pet obesity. A literature survey revealed that the two presently k ...
DOI:
10.3390/vetsci7020044

94. Alcohol dehydrogenase modulates quorum sensing in biofilm formations of Acinetobacter baumannii

Author:
Kangjian Zhang; Xiaoyan Yang; Jiali Yang; Xia Qiao; Feng Li; Xiaoming Liu; Jun Wei; Lixin Wang
Source:
Microbial pathogenesis 2020 v.148 pp. 104451
ISSN:
0882-4010
Subject:
Acinetobacter baumannii; alcohol dehydrogenase; bacteria; bacterial growth; biofilm; cell growth; cross infection; disulfiram; dose response; gene expression; gene expression regulation; genes; homoserine; lactones; medical equipment; pathogens; plankton; quorum sensing; taurine
Abstract:
... Acinetobacter baumannii (A. baumannii) is a common opportunistic nosocomial pathogen, which is able to produce biofilms on the surface of indwelling medical devices, and consequentially causes severe infections in clinical settings. In order to identify genes that involved in the biofilm formation of A. baumannii, the differential expression of genes between biofilms and planktonic cells was analy ...
DOI:
10.1016/j.micpath.2020.104451

95. Allergic Bronchopulmonary Aspergillosis in Children with Cystic Fibrosis: An Update on the Newest Diagnostic Tools and Therapeutic Approaches

Author:
Claudia Lattanzi; Giulia Messina; Valentina Fainardi; Maria Candida Tripodi; Giovanna Pisi; Susanna Esposito
Source:
Pathogens 2020 v.9 no.9 pp. -
ISSN:
2076-0817
Subject:
Aspergillus fumigatus; Pseudomonas aeruginosa; adrenal cortex hormones; aspergillosis; bacteria; bedrock; breathing; children; classification; conidia; cystic fibrosis; cystic fibrosis transmembrane conductance regulator; diagnostic techniques; disease progression; fungi; guidelines; immunologic techniques; itraconazole; pathogens; patients; population; research; risk; therapeutics; vitamin D
Abstract:
... Cystic fibrosis (CF), the most common autosomal-recessive genetic disease in the Caucasian population, is characterized by frequent respiratory infections and progressive lung disease. Fungal species are commonly found in patients with CF, and among them, Aspergillus fumigatus is the most frequently isolated. While bacteria, particularly Pseudomonas aeruginosa, have a well-established negative eff ...
DOI:
10.3390/pathogens9090716

96. Alleviation of the toxicity of oily wastewater to canola plants by the N2-fixing, aromatic hydrocarbon biodegrading bacterium Stenotrophomonas maltophilia-SR1

Author:
Shymaa R. Bashandy; Mohamed H. Abd-Alla; Mona F.A. Dawood
Source:
Applied soil ecology 2020 v.154 pp. 103654
ISSN:
0929-1393
Subject:
Brassica napus; Stenotrophomonas; ammonia; bacteria; benzene; bioremediation; canola; carbon; chlorophyll; genes; hydrogen peroxide; hydroxyl radicals; indole acetic acid; nitrate reductase; nitrates; nitric oxide; nitrogen fixation; oils; phosphates; plant growth; plasma membrane; soil ecology; solubilization; superoxide anion; toluene; total nitrogen; toxicity; transportation; wastewater; water pollution; xylene
Abstract:
... Soils may be contaminated by oily wastewater during both upstream and downstream oil and gas production processes such as extraction, transportation, and refining. Oil-contaminated sites could nonetheless be used for agricultural purposes in arid regions provided they are managed appropriately. The present study introduces the successful application of a novel nitrogen-fixing, aromatic hydrocarbon ...
DOI:
10.1016/j.apsoil.2020.103654

97. Allocation of trisoxazole macrolides in the sponge Penares cf. nux and the impact on epiphytic bacterial cohabitants

Author:
Oyenike O. Olatunji; Aekaphon Petchoubon; Chitti Thawai; Anuchit Plubrukarn
Source:
Natural product research 2020 v.34 no.5 pp. 710-713
ISSN:
1478-6427
Subject:
appendages; bacteria; epiphytes; fouling; macrolides; secondary metabolites
Abstract:
... The correlation between the allocation of trisoxazole macrolides in the capitums, appendages, and bases of the sponge Penares cf. nux and the surface-attached bacteria on the corresponding parts was examined. The kabiramide contents were highest in the capitums, followed by the appendages and bases. Conversely, direct counts of cultivable surface-attached bacteria showed that the bacteria aggregat ...
DOI:
10.1080/14786419.2018.1493589

98. Alpha and Beta-diversity of Microbial Communities Associated to Plant Disease Suppressive Functions of On-farm Green Composts

Author:
Catello Pane; Roberto Sorrentino; Riccardo Scotti; Marcella Molisso; Antonio Di Matteo; Giuseppe Celano; Massimo Zaccardelli
Source:
Agriculture (Basel) 2020 v.10 no.4 pp. -
ISSN:
2077-0472
Subject:
bacteria; biological control; composts; enzymes; fungi; genes; green waste; microbial communities; niches; plant pathogens; restriction fragment length polymorphism; ribosomal RNA; species diversity
Abstract:
... Green waste composts are obtained from agricultural production chains; their suppressive properties are increasingly being developed as a promising biological control option in the management of soil-borne phytopathogens. The wide variety of microbes harbored in the compost ecological niches may regulate suppressive functions through not yet fully known underlying mechanisms. This study investigat ...
DOI:
10.3390/agriculture10040113

99. Alpha-Lactalbumin Enriched Whey Protein Concentrate to Improve Gut, Immunity and Brain Development in Preterm Pigs

Author:
Charlotte Holme Nielsen; Yan Hui; Duc Ninh Nguyen; Agnethe May Ahnfeldt; Douglas G. Burrin; Bolette Hartmann; Anne Birgitte Heckmann; Per Torp Sangild; Thomas Thymann; Stine Brandt Bering
Source:
Nutrients 2020 v.12 no.1 pp. -
ISSN:
2072-6643
Subject:
amino acids; animal models; bacteria; brain; breast milk; cognition; colon; cortisol; endpoints; enzyme activity; immunity; lactalbumin; metabolites; microvilli; milk; mineral content; neonatal development; neutrophils; nutrients; swine; tissues; whey protein concentrate
Abstract:
... Human milk is rich in nutritional factors, such as alpha-lactalbumin (α-Lac), and important for neonatal development, but nutrient supplementation may be required for optimal growth. Using a pig model, we hypothesized that α-Lac-enriched whey protein concentrate (WPC) supplementation improves neonatal development. Cesarean-delivered preterm pigs were fed either dilute bovine milk (REF) or REF milk ...
DOI:
10.3390/nu12010245

100. Alpha-amylase conjugated biogenic silver nanoparticles as innovative strategy against biofilm-forming multidrug resistant bacteria

Author:
Harold Emman P. Abeleda; Athria P. Javier; Ann Quincy M. Murillo; Ronan Q. Baculi
Source:
Biocatalysis and agricultural biotechnology 2020 v.29 pp. 101784
ISSN:
1878-8181
Subject:
Bacillus horikoshii; Bacillus subtilis; Klebsiella pneumoniae; absorbance; agricultural biotechnology; alpha-amylase; antibacterial properties; bacteria; biocatalysis; biofilm; biosynthesis; dose response; evolution; fluorescence; methicillin-resistant Staphylococcus aureus; multiple drug resistance; nanosilver; silver; surface plasmon resonance; synergism
Abstract:
... The evolution of multidrug resistance in bacteria instigates the decline in effectiveness of antibiotics. Nanoparticle-enzyme bioconjugates are a recent interest in countering biofilm-related infections due to their stability and targeted delivery. The synergistic effect of α-amylase and biosynthesized silver nanoparticles (AgNPs) towards biofilms remains less explored. In this study, we demonstra ...
DOI:
10.1016/j.bcab.2020.101784