<i>Bacillus Anthracis</i>,<i>Bacillus Cereus</i>, and Other Aerobic Endospore-Forming Bacteria

Logan, Niall A.

doi:10.1002/9780470688618.taw0036

Cited by 11 publications

(9 citation statements)

References 146 publications

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“…Bacillus sensu stricto represents a group of widely distributed Gram-positive, aerobic and facultative aerobic bacteria. These bacteria are catalase positive and able to produce resistant endospores which are metabolically active even under unfavorable environmental conditions (Logan et al, 2007). Bacillus species produce catalytic enzymes (proteases, chitinases and glucanases and peptide antibiotics (bacilizyn, fengimycin, bacitracin, bacilin, bacilomycin B, iturin) which are known as antifungal and antibacterial substances (Pal & McSpadden Gardener, 2006;Stein, 2005).…”

Section: Introductionmentioning

confidence: 99%

Antagonistic potential of Bacillus spp. isolates against bacterial pathogens of tomato and fungal pathogen of pepper

et al. 2018

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In vitro antagonistic potential of eleven isolates of Bacillus spp. against two phytopathogenic bacteria and one fungus was tested in order to identify potential biocontrol agents in vegetable crops. The Bacillus spp. isolates demonstrated different levels of antagonistic effect against the tested pathogenic microorganisms. Data in the study proved Xanthomonas vesicatoria to be more sensitive to Bacillus spp. strains than Clavibacter michiganensis subsp. michiganensis. Ten B. subtilis strains induced growth inhibition of X. vesicatoria, while a strain of B. pumilus did not affect the growth of that bacterium. The largest inhibition zones against X. vesicatoria were induced by strains B-319, B-325 and B-358. The pathogenic strain C. michiganensis subsp. michiganensis was most inhibited by two B. subtilis strains (B-338 and B-348) with mean inhibition zone diameters of up to 20 mm. B. subtilis strain B-319 which was the best in inhibiting X. vesicatoria, showed the lowest inhibitory effect on C. michiganensis subsp. michiganensis. The largest growth inhibition percentage of Verticillium sp. (PGI approximately 70%) was induced by B. subtilis strains B-310 and B-322. The other B. subtilis strains showed PGI values ranging from 45% to 68%, while B. pumilus strain B-335 had the least antagonistic potential (PGI =34.43%) against the pathogen. This study identified at least one suitable biocontrol candidate, B. subtilis strain B-358, as effective in vitro against all three vegetable pathogens.

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Section: Introductionmentioning

confidence: 99%

Antagonistic potential of Bacillus spp. isolates against bacterial pathogens of tomato and fungal pathogen of pepper

et al. 2018

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“…Bacillus species could form endospores which could survive in the absence of exogenous nutrients in a metabolically dormant state for many years when confronted with limited or depleted nutrients in the environment (Driks ). Dormant bacterial spores are much more resistant than their vegetative cells to a broad range of stresses, including heat, radiation, desiccation, and a variety of chemicals (Nicholson and others ; Logan ; Ryu and Beuchat ; Setlow ). Spores could return to life rapidly in the presence of appropriate nutrients and lead to disease or food spoilage by germinating and resuming vegetative growth (Setlow ).…”

Section: Introductionmentioning

confidence: 99%

Effects of Electrolyzed Oxidizing Water on Inactivation of Bacillus subtilis and Bacillus cereus Spores in Suspension and on Carriers

Zhang

Jadeja

et al. 2015

Journal of Food Science

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Spores of some Bacillus species are responsible for food spoilage and foodborne disease. These spores are highly resistant to various interventions and cooking processes. In this study, the sporicidal efficacy of acidic electrolyzed oxidizing (EO) water (AEW) and slightly acidic EO water (SAEW) with available chlorine concentration (ACC) of 40, 60, 80, 100, and 120 mg/L and treatment time for 1, 2, 3, 4, 5, and 6 min were tested on Bacillus subtilis and Bacillus cereus spores in suspension and on carrier with or without organics. The reduction of spore significantly increased with increasing ACC and treatment time (P < 0.05). Nondetectable level of B. cereus spore in suspension occurred within 2 min after exposure to both EO waters containing 120 mg/L ACC, while only SAEW at 120 mg/L and 2 min treatment achieved >6 log reductions of B. subtilis spore. Both types of EO water with ACC of 60 mg/L and 6 min treatment achieved a reduction of B. subtilis and B. cereus spores to nondetectable level. EO water with ACC of 80 mg/L and treatment time of 3 min on carrier test without organics addition resulted in reductions of B. subtilis spore to nondetectable level. But, addition of 0.3% organics on carrier decreased the inactivation effect of EO water. This study indicated that EO water was highly effective in inactivation of B. subtilis and B. cereus spores in suspension or on carrier, and therefore, rendered it as a promising disinfectant to be applied in food industry.

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“…The result of antibiotic sensitivity test (Table 2) was similar to that of earlier reports (Luna et al, 2007). Penicillin resistance of B.t.LDC 501 is comparable with that of B.cereus and B.thuringiensis strains but not with B.anthracis (Logan, 2005). Like B.t.LDC 501, parasporin (PS2, PS3 and PS4) producing strains and other insecticidal strains were also highly resistant to ampicillin (Figure 4).…”

Section: Discussionmentioning

confidence: 54%

Phenotypic characterization of an indigenous Bacillus thuringiensis strain (B.T. LDC 501) expressing cancer cell killing protein

P¹,

Kkani²,

Suguna³

et al. 2016

JEBAS

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Screening of coastal soil samples from Ramnad district, Tamil Nadu, South India, revealed the presence of a novel non-haemolytic and non-insecticidal Bacillus thuringiensis strain that contained spherical inclusion body and exerted cytotoxic action on cultured human cancer cells. When protoplasmic extract of the B.t. LDC 501 isolate digest with proteinase K exerted significant toxicity on cell lines such as U-937, HL-60 and primary leukemic cells. It also had mild influence on Jurkat (T cell lymphoma) but nontoxic to normal human leukocytes. Majority of the biochemical tests of the strain revealed similar characteristics like that of insecticidal strain B. thuringiensis (BGSC-4Q2) with slight variation. Moreover, antibiotic sensitivity assay discriminated the strain from B. anthracis due to its ability to resist ampicillin. Phylogenetic analysis revealed the distinctive nature of the strain as it forms a separate clade from other Bacillus strains.

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Bacillus Anthracis,Bacillus Cereus, and Other Aerobic Endospore-Forming Bacteria

Cited by 11 publications

References 146 publications

Antagonistic potential of Bacillus spp. isolates against bacterial pathogens of tomato and fungal pathogen of pepper

Antagonistic potential of Bacillus spp. isolates against bacterial pathogens of tomato and fungal pathogen of pepper

Effects of Electrolyzed Oxidizing Water on Inactivation of Bacillus subtilis and Bacillus cereus Spores in Suspension and on Carriers

Phenotypic characterization of an indigenous Bacillus thuringiensis strain (B.T. LDC 501) expressing cancer cell killing protein

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