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

5,456  Search Results

« Previous | 1 - 50 of 5,456 |
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