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1. Chromate tolerance and removal of bacterial strains isolated from uncontaminated and chromium-polluted environments

Author:
Tamindžija, Dragana; Chromikova, Zuzana; Spaić, Andrea; Barak, Imrich; Bernier-Latmani, Rizlan; Radnović, Dragan
Source:
World journal of microbiology & biotechnology 2019 v.35 no.4 pp. 56
ISSN:
0959-3993
Subject:
Bacillus cereus,   etc   ; Gram-positive bacteria; bioremediation; chromium; toxicity;     Show all 5 Subjects
Abstract:
... Investigation of bacterial chromate tolerance has mostly focused on strains originating from polluted sites. In the present study, we isolated 33 chromate tolerant strains from diverse environments harbouring varying concentrations of chromium (Cr). All of these strains were able to grow on minimal media with at least 2 mM hexavalent chromium (Cr(VI)) and their classification revealed that they be ...
DOI:
10.1007/s11274-019-2638-5

2. Supplementation of Modified Mannitol‐Yolk‐Polymyxin B Agar with Cefuroxime for Quantitative Detection of Bacillus cereus in Food

Author:
Chon, Jung‐Whan; Kim, Young‐Ji; Kim, Dong‐Hyeon; Song, Kwang‐Young; Kim, Hyunsook; Seo, Kun‐Ho
Source:
Journal of food science 2019 v.84 no.1 pp. 133-137
ISSN:
0022-1147
Subject:
Bacillus cereus,   etc   ; agar; cefuroxime; flora; fruit juices; selective media;     Show all 6 Subjects
Abstract:
... The presence of unwanted competing flora has been the most common confounding factor in the enumeration of Bacillus cereus (B. cereus) using selective media such as mannitol‐yolk‐polymyxin B agar (MYPA). The objective of this study was to improve MYPA selectivity for B. cereus by supplementation with a second‐generation cephalosporin, cefuroxime. The performance of cefuroxime‐supplemented MYPA (ce ...
DOI:
10.1111/1750-3841.14393

3. Catalytic hairpin assembly combined with graphene oxide for the detection of emetic Bacillus cereus in milk

Author:
Zhan, Zhongxu; Yu, Bei; Li, Hui; Yan, Leina; Aguilar, Zoraida P.; Xu, Hengyi
Source:
Journal of dairy science 2019 v.102 no.6 pp. 4945-4953
ISSN:
0022-0302
Subject:
Bacillus cereus,   etc   ; bacteria; denaturation; detection limit; fluorescence; graphene oxide; milk; polymerase chain reaction; single-stranded DNA;     Show all 9 Subjects
Abstract:
... A fluorescence assay combined with PCR, catalytic hairpin assembly (CHA), and graphene oxide (GO) was established to detect emetic Bacillus cereus in milk samples. The processes of the assay are not new, but components of the processes make the assay useful. Two partially complementary hairpin probes (H1 and FAM-H2) were designed according to the target single-strand DNA (ssDNA). The CHA reaction ...
DOI:
10.3168/jds.2018-15812

4. Microbiological safety of UHT milk treated at 120 °C for 2 s, as estimated from the distribution of high-heat-resistant Bacillus cereus in dairy environments

Author:
Ohkubo, Yoshiaki; Uchida, Kenji; Motoshima, Hidemasa; Katano, Naoya
Source:
International dairy journal 2019 v.91 pp. 36-40
ISSN:
0958-6946
Subject:
Bacillus cereus,   etc   ; UHT milk; microbiological quality; milk; pasteurized milk; shelf life; Japan;     Show all 7 Subjects
Abstract:
... Unlike common ultra-high-temperature (UHT) milk, so-called “UHT milk” in Japan is typically pasteurised at 120–130 °C for 2 s and distributed at 10 °C or less, and there is a potential risk of Bacillus cereus. To estimate the microbiological safety of UHT milk, we surveyed the distribution of high-heat-resistant B. cereus strains (defined as showing <∼3 log reduction after treatment at 120 °C for ...
DOI:
10.1016/j.idairyj.2018.12.011

5. Fluoride movement into and out of Bacillus spores and growing cells and effects of fluoride accumulation on spore properties

Author:
Dong, W.; Setlow, P.
Source:
Journal of applied microbiology 2019 v.126 no.2 pp. 503-515
ISSN:
1364-5072
Subject:
Bacillus cereus,   etc   ; Bacillus subtilis; cell growth; heat tolerance; pH; sodium fluoride; spore germination; spores;     Show all 8 Subjects
Abstract:
... AIMS: To investigate effects of fluoride ion (F⁻) on, and kinetics of its movement into and out of, spores and growing cells of Bacillus species. METHODS AND RESULTS: Effects of F⁻ on Bacillus cell growth, spore germination and outgrowth and heat resistance were investigated, as well as F⁻ movement into and out of spores using ¹⁹F‐NMR. F⁻ inhibited Bacillus subtilis spore germination and outgrowth ...
DOI:
10.1111/jam.14155

6. Fomitopsins I and J, 24-methyl-lanostane triterpenoids from fruiting bodies of the wood-rot basidiomycete Fomitopsis sp.

Author:
Isaka, Masahiko; Chinthanom, Panida; Suvannakad, Rapheephat; Thummarukcharoen, Tuksaporn; Feng, Tao; Liu, Ji-Kai
Source:
Phytochemistry letters 2019 v.29 pp. 178-181
ISSN:
1874-3900
Subject:
Bacillus cereus,   etc   ; Enterococcus faecium; Fomitopsis; Gram-positive bacteria; antibacterial properties; cytotoxicity; fruiting bodies; spectral analysis; triterpenoids;     Show all 9 Subjects
Abstract:
... Two new 24-methyl-lanostane triterpenoids, fomitopsins I (1) and J (2), were isolated together with seven known compounds (3–9), from fruiting bodies of the basidiomycete Fomitopsis species. The structures were elucidated by spectroscopic analysis. Their antibacterial and cytotoxic activities were evaluated. One of the known compounds (6) exhibited antibacterial activity against Gram-positive bact ...
DOI:
10.1016/j.phytol.2018.12.006

7. Heterologous expression and purification of BtCspB, a novel cold-shock protein-like bacteriocin from Bacillus thuringiensis BRC-ZYR2

Author:
Jin, Xin; Yao, Junmin; Fan, Haili; Che, Yucheng; Pan, Jieru; Zhang, Lingling; Pan, Xiaohong; Gelbič, Ivan; Huang, Tianpei; Guan, Xiong
Source:
World journal of microbiology & biotechnology 2019 v.35 no.2 pp. 23
ISSN:
0959-3993
Subject:
Bacillus cereus,   etc   ; Bacillus thuringiensis; Escherichia coli; affinity chromatography; bacteriocins; food pathogens; genes; heterologous gene expression;     Show all 8 Subjects
Abstract:
... A novel Bacillus thuringiensis (Bt) bacteriocin BtCspB, active against a food-borne pathogen Bacillus cereus, was identified and purified by a traditional four-step chromatographic process with low yield (44.5 µg/L) in our lab previously. The aim of this study was to dramatically increase its yield by heterologous expression of BtCspB. The BtCspB gene from Bt BRC-ZYR2 was successfully heterologous ...
DOI:
10.1007/s11274-019-2595-z

8. Extracellular electron transfer of Bacillus cereus biofilm and its effect on the corrosion behaviour of 316L stainless steel

Author:
Li, Shunling; Li, Lei; Qu, Qing; Kang, Yaxin; Zhu, Baolin; Yu, Datao; Huang, Rui
Source:
Colloids and surfaces 2019 v.173 pp. 139-147
ISSN:
0927-7765
Subject:
Bacillus cereus,   etc   ; biofilm; colloids; corrosion; electrochemistry; electron transfer; oxygen; stainless steel;     Show all 8 Subjects
Abstract:
... Here, a heterogeneous Bacillus cereus (B. cereus) biofilm on the surface of 316 L stainless steel (SS) was observed. With electrochemical measurement and surface analysis, it was found that B. cereus biofilm could inhibit SS pitting corrosion, attributing to the blocking effect of bacterial biofilm on extracellular electron transfer (EET). Differential pulse voltammetry (DPV) and cyclic voltammetr ...
DOI:
10.1016/j.colsurfb.2018.09.059

9. The fate of Bacillus cereus and Geobacillus stearothermophilus during alkalization of cocoa as affected by alkali concentration and use of pre-roasted nibs

Author:
Pia, Arthur K.R.; Pereira, Ana P.M.; Costa, Ramon A.; Alvarenga, Verônica O.; Freire, Luisa; Carlin, Frédéric; Sant’Ana, Anderson S.
Source:
Food microbiology 2019 v.82 pp. 99-106
ISSN:
0740-0020
Subject:
Bacillus cereus,   etc   ; Geobacillus stearothermophilus; alkalinization; bacterial spores; cocoa nibs; food processing; microorganisms; potassium carbonate; raw materials; temperature;     Show all 10 Subjects
Abstract:
... Alkalization is a step of cocoa processing and consists of the use of alkali and high temperature to improve the sensorial and technological qualities of cocoa. Intense food processing can select spores, which can compromise safety and quality of the final product. Thus, the aim of this study was to evaluate the fate of B. cereus and G. stearothermophilus spores during the alkalization of pre-roas ...
DOI:
10.1016/j.fm.2019.01.009

10. Effect of temperature on the fermentation of starch by two high efficient H2 producers

Author:
Ma, Hanxiao; Su, Haijia
Source:
Renewable energy 2019 v.138 pp. 964-970
ISSN:
0960-1481
Subject:
Bacillus cereus,   etc   ; Brevundimonas; butyric acid; coculture; fermentation; formates; hydrogen; hydrogen production; metabolites; mixed culture; renewable energy sources; starch; temperature;     Show all 13 Subjects
Abstract:
... The batch fermentative hydrogen production using starch was conducted to investigate the influence of temperature (25 °C-40 °C) on the co-cultures system of Bacillus cereus ATCC 14579 (T) [Strain A] and Brevundimonas naejangsanensis BIO-TAS2-2(T) [Strain B]. The results showed that the optimal temperature for hydrogen production was 35 °C in both the sole and the mixed culture fermentation. At thi ...
DOI:
10.1016/j.renene.2019.01.126

11. Tofu Wastewater as Efficient Nutritional Source in Biocementation for Improved Mechanical Strength of Cement Mortars

Author:
Fang, Chaolin; He, Jing; Achal, Varenyam; Plaza, Grażyna
Source:
Geomicrobiology journal 2019 v.36 no.6 pp. 515-521
ISSN:
1521-0529
Subject:
Bacillus cereus,   etc   ; bacterial growth; cement; compression strength; dietary nutrient sources; enzyme activity; nutrients; sandstone; strength (mechanics); tofu; urease; wastewater;     Show all 12 Subjects
Abstract:
... Biocementation is an eco-friendly process in sustainable construction; however, the associated cost of nutrients is major obstacle in it. Therefore, the main objective of this study was to utilize tofu wastewater (TW) in biocementation to grow Bacillus cereus and desirable characteristics were compared with that in commercial nutrient broth. There was no significant difference in bacterial growth ...
DOI:
10.1080/01490451.2019.1576804

12. Spoilage Bacteria Identification and Food Safety Risk Assessment of Whole Soybean Curd

Author:
Wang, Chenzhi; Du, Qinling; Yao, Tianwei; Dong, Hongmin; Wu, Dingtao; Qin, Wen; Raheem, Dele; Zhang, Qing
Source:
Indian journal of microbiology 2019 v.59 no.2 pp. 250-253
ISSN:
0046-8991
Subject:
Bacillus cereus,   etc   ; food safety; ingredients; nutrients; nutritive value; risk; risk profile; risk ranking; spoilage; spoilage bacteria; tofu;     Show all 11 Subjects
Abstract:
... As a highly hydrated gel-type food, soybean curd is perishable and the development of spoilage bacteria has been described. Whole soybean curd (WSC), an innovative soy product retains the most nutrients in raw ingredients and exhibits more nutritive value compared with conventional soybean curd (CSC). However, the risk assessment of WSC is not well evaluated up to now. In this study, the same spec ...
DOI:
10.1007/s12088-019-00778-1

13. Tea yield maintained in PGPR inoculated field plants despite significant reduction in fertilizer application

Author:
Tennakoon, P.L.K.; Rajapaksha, R.M.C.P.; Hettiarachchi, L.S.K.
Source:
Rhizosphere 2019 v.10 pp. 100146
ISSN:
2452-2198
Subject:
Bacillus cereus,   etc   ; Azospirillum; Camellia sinensis; Microbacterium; crop yield; fertilizer rates; fertilizers; leaves; plant growth-promoting rhizobacteria; rhizosphere; soil; tea;     Show all 12 Subjects
Abstract:
... A study was conducted to formulate dual plant growth promoting rhizobacteria (PGPR) inoculants, indigenous to each soil series where fields were located, to enhance growth and yield of tea (Camellia sinensis (L.) O. Kuntze), managed with low fertilizers inputs.Field experiments were conducted in five different locations with both early and later stages of mature tea fields representing three soil ...
DOI:
10.1016/j.rhisph.2019.100146

14. Combining the microbial calcite precipitation process with biochar in order to improve nickel remediation

Author:
Zhang, Jing; Kumari, Deepika; Fang, Chaolin; Achal, Varenyam
Source:
Applied geochemistry 2019 v.103 pp. 68-71
ISSN:
0883-2927
Subject:
Bacillus cereus,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; biochar; calcite; carbonates; dissociation; geochemistry; heavy metals; nickel; remediation;     Show all 13 Subjects
Abstract:
... Microbially induced calcite precipitation (MICP) is a promising technology in the remediation of heavy metals, while biochar is a valuable adsorbent for its removal. In the present study, biochar was added to the MICP process to investigate its effect on the remediation of nickel (Ni). The MICP process immobilized 89% and 66% of Ni2+ at initial concentrations of 50 and 100 mg L−1, respectively. Ho ...
DOI:
10.1016/j.apgeochem.2019.02.011

15. Preservation of red pepper flakes using microwave‐combined cold plasma treatment

Author:
Kim, Jung Eun; Oh, Yeong Ji; Song, Ah Young; Min, Sea C
Source:
Journal of the science of food and agriculture 2019 v.99 no.4 pp. 1577-1585
ISSN:
0022-5142
Subject:
Bacillus cereus,   etc   ; Aspergillus flavus; antioxidant activity; ascorbic acid; capsaicin; cold; color; food preservation; microorganisms; nonthermal processing; sensory properties; spores;     Show all 12 Subjects
Abstract:
... BACKGROUND: Red pepper flakes are often contaminated with various microorganisms; however, any technologies aiming to decontaminate the flakes should also maintain their quality properties. This study investigated the effect of microwave‐combined cold plasma treatment (MCPT) at different microwave power densities on microbial inactivation and preservation of red pepper flakes. Red pepper flake sam ...
DOI:
10.1002/jsfa.9336

16. pXO16, the large conjugative plasmid from Bacillus thuringiensis serovar israelensis displays an extended host spectrum

Author:
Hinnekens, Pauline; Koné, Klèma Marcel; Fayad, Nancy; Leprince, Audrey; Mahillon, Jacques
Source:
Plasmid 2019 v.102 pp. 46-50
ISSN:
0147-619X
Subject:
Bacillus cereus,   etc   ; Bacillus thuringiensis subsp. israelensis; geographical distribution; heat tolerance; host range; liquids; loci; mutants; phenotype; plasmids; serotypes;     Show all 11 Subjects
Abstract:
... pXO16, the large conjugative plasmid from Bacillus thuringiensis serovar israelensis is able to efficient self-transfer, to mobilize and retro-mobilize non-conjugative plasmids, including “non-mobilizable” plasmids, and to transfer chromosomal loci. It also displays a remarkable aggregation phenotype associated with conjugation under liquid conditions. However, it was recently shown that aggregati ...
DOI:
10.1016/j.plasmid.2019.02.004

17. The phosphotransferase system gene ptsH plays an important role in MnSOD production, biofilm formation, swarming motility, and root colonization in Bacillus cereus 905

Author:
Gao, Tantan; Ding, Mingzheng; Yang, Ching-Hong; Fan, Haiyan; Chai, Yunrong; Li, Yan
Source:
Research in microbiology 2019 v.170 no.2 pp. 86-96
ISSN:
0923-2508
Subject:
Bacillus cereus,   etc   ; arabinose; bacterial motility; biofilm; genes; glucose; oxidative stress; plant growth; rhizosphere; rhizosphere bacteria; roots; superoxide dismutase; transferases; wheat;     Show all 14 Subjects
Abstract:
... The rhizosphere bacterium Bacillus cereus 905 is capable of promoting plant growth through effective colonization on plant roots. The sodA2-encoding manganese-containing superoxide dismutase (MnSOD2) is important for survival of B. cereus 905 in the wheat rhizosphere. However, the genes involved in regulating sodA2 expression and the mechanisms of rhizosphere colonization of B. cereus 905 are not ...
DOI:
10.1016/j.resmic.2018.10.002

18. A label-free impedimetric aptasensor for the detection of Bacillus anthracis spore simulant

Author:
Mazzaracchio, Vincenzo; Neagu, Daniela; Porchetta, Alessandro; Marcoccio, Eleonora; Pomponi, Alice; Faggioni, Giovanni; D'Amore, Nino; Notargiacomo, Andrea; Pea, MarialLilia; Moscone, Danila; Palleschi, Giuseppe; Lista, Florigio; Arduini, Fabiana
Source:
Biosensors & bioelectronics 2019 v.126 pp. 640-646
ISSN:
0956-5663
Subject:
Bacillus cereus,   etc   ; Bacillus anthracis; DNA; Legionella pneumophila; Salmonella Typhimurium; aptasensors; electrodes; gold; magnesium chloride; oligonucleotides; pH; portable equipment; spores; temperature;     Show all 14 Subjects
Abstract:
... Herein, we report an impedimetric DNA-based aptamer sensor for a single-step detection of B. anthracis spore simulant (B. cereus spore). Specifically, we designed a miniaturized label-free aptasensor for B. cereus spores based on a gold screen-printed electrode functionalized with B. cereus spores-binding aptamer (BAS-6R). Several parameters were optimized to fabricate the aptasensor such as the c ...
DOI:
10.1016/j.bios.2018.11.017

19. Genotypic and phenotypic characteristics of biofilm formation of emetic toxin producing Bacillus cereus strains

Author:
Park, Eun-ji; Hussain, Mohammad Shakhawat; Wei, Shuai; Kwon, Minyeong; Oh, Deog-Hwan
Source:
Food control 2019 v.96 pp. 527-534
ISSN:
0956-7135
Subject:
Bacillus cereus,   etc   ; antibiotic resistance; benzalkonium chloride; biofilm; cell differentiation; genes; gentian violet; hydrophobicity; phenotype; scanning electron microscopy; stainless steel;     Show all 11 Subjects
Abstract:
... The objectives of this study were: 1) to determine biofilm formation abilities of 11 emetic toxin producing Bacillus cereus strains along with two reference strains ATCC 14579 and KCTC 13153 on stainless steel and plastic coupons; 2) to examine the correlation between biofilm formation ability and genotypic and phenotypic characteristics of four selected strains. Crystal violet assay results indic ...
DOI:
10.1016/j.foodcont.2018.10.008

20. Complete Genome Sequence of Bacillus cereus CC-1, A Novel Marine Selenate/Selenite Reducing Bacterium Producing Metallic Selenides Nanomaterials

Author:
Che, Lin; Xu, Weiping; Zhan, Jingjing; Zhang, Lei; Liu, Lifen; Zhou, Hao
Source:
Current microbiology 2019 v.76 no.1 pp. 78-85
ISSN:
0343-8651
Subject:
Bacillus cereus,   etc   ; bacteria; bismuth; genes; lead; metal ions; metal tolerance; nanoparticles; nucleotide sequences; photothermotherapy; selenates; selenites; selenium; silver;     Show all 14 Subjects
Abstract:
... Metallic selenides nanomaterials are widely used in many fields, especially for photothermal therapy and thermoelectric devices. However, the traditional chemogenic methods are energy-intensive and environmentally unfriendly. In this study, the first complete genome data of a metallic selenides producing bacterium Bacillus cereus CC-1 was reported. This strain can not only reduce selenite and sele ...
DOI:
10.1007/s00284-018-1587-9