Antimicrobial activity of Bacillus megaterium strains

Маланичева, И. А.; Kozlov, D. G.; Sumarukova, I. G.; Efremenkova, Olga V.; Zenkova, Valentina A.; Катруха, Г. С.; Reznikova, M. I.; Tarasova, O. D.; Синеокий, С. П.; Эль-Регистан, Г. И.

doi:10.1134/s0026261712020063

Cited by 24 publications

(10 citation statements)

References 12 publications

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“…It is a common soil bacterium that during the past years has become popular in biotechnology ( Bunk et al 2010 ) . Bacillus megaterium strains are known to produce antimicrobial antibiotics ( Malanicheva et al 2012 ). Bacillus megaterium is also known to control microorganisms such as those involved in plant disease ( Safiyazov et al 1995 ).…”

Section: Discussionmentioning

confidence: 99%

Recapture probability, flight morphology, and microorganisms

2017

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Microorganisms on and within organisms are ubiquitous and interactions with their hosts range from mutualistic over commensal, to pathogenic. We hypothesized that microorganisms might affect the ability of barn swallows Hirundo rustica to escape from potential predators, with positive associations between the abundance of microorganisms and escape ability implying mutualistic effects, while negative associations would imply antagonistic effects. We quantified escape behavior as the ability to avoid capture in a mist net and hence as a small number of recaptures. Because recapture probability may also depend on timing of reproduction and reproductive success, we also tested whether the association between recapture and microorganisms was mediated by an association between recapture and life history. We found intermediate to strong positive relationships between recapture probability and abundance of Bacillus megaterium, but not abundance of other bacteria or fungi. The abundance of B. megaterium was associated with an advance in laying date and an increase in reproductive success. However, these effects were independent of the number of recaptures. This interpretation is supported by the fact that there was no direct correlation between laying date and reproductive success on one hand and the number of recaptures on the other. These findings have implications not only for predator–prey interactions, but also for capture-mark-recapture analyses of vital rates such as survival and dispersal.

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Section: Discussionmentioning

confidence: 99%

Recapture probability, flight morphology, and microorganisms

2017

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“…For B. subtilis , the representative species of the genus, Sma3s finds 45 proteins related with this annotation, and it is known that this species produces more than two dozen of different antibiotics of a great variety of types . Further, we have been able to support this interesting ability in two more species, B. megaterium , and different strains of B. amyloliquefaciens . All together shows a practical example of a discovering of bacterial strains of interest in a specific field, with for example application in medicine.…”

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confidence: 62%

Sma3s: A universal tool for easy functional annotation of proteomes and transcriptomes

2017

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The current cheapening of next-generation sequencing has led to an enormous growth in the number of sequenced genomes and transcriptomes, allowing wet labs to get the sequences from their organisms of study. To make the most of these data, one of the first things that should be done is the functional annotation of the protein-coding genes. But it used to be a slow and tedious step that can involve the characterization of thousands of sequences. Sma3s is an accurate computational tool for annotating proteins in an unattended way. Now, we have developed a completely new version, which includes functionalities that will be of utility for fundamental and applied science. Currently, the results provide functional categories such as biological processes, which become useful for both characterizing particular sequence datasets and comparing results from different projects. But one of the most important implemented innovations is that it has now low computational requirements, and the complete annotation of a simple proteome or transcriptome usually takes around 24 hours in a personal computer. Sma3s has been tested with a large amount of complete proteomes and transcriptomes, and it has demonstrated its potential in health science and other specific projects.

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“…In the present investigation, the antibacterial activity of 25 Bacillus isolates against wide range of Gram-positive and Gram-negative bacteria were demonstrated. These isolates were identified based on their morphological, physical, and biochemical characteristics using Bergey"s manual and other scientific literature (Arbsuwan et al, 2014;Arumugam et al, 2017;Ramachandran et al, 2014;Malanicheva et al, 2012). It has been also observed that highest antibacterial activity was demonstrated against S. aureus and S. epidermis than E. coli.…”

Section: Discussionmentioning

confidence: 99%

“…subtilis, B. lichenoformis, B. coagulans, B. us megaterium, B. polymyxa, and Brevibacillus brevis. (Arbsuwan et al, 2014;Arumugam et al, 2017;Jianmei et al, 2015;Ramachandran et al, 2014;Malanicheva et al, 2012;Sumi et al, 2015).…”

Section: Identification Of Isolatesmentioning

confidence: 99%

Production of antimicrobial agents by Bacillus spp. isolated from Al-Khor coast soils, Qatar

Missoum¹,

Al‐Thani²

2017

Afr. J. Microbiol. Res.

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Bacilli are Gram-positive, sporulating bacteria that can be found in diverse habitats, but mostly in soil. Many recent studies showed the importance of their antimicrobial agents that mainly target other Grampositive bacteria. This study was conducted to assess the antibacterial activity of Al-Khor coastal soil Bacillus strains against four bacterial strains (Staphylococcus aureus, Staphylococcus epidermis, Escherichia coli, and Pseudomonas aeruginosa) by agar diffusion method as well as investigating best strain antibiotic production in liquid medium. The 25 isolated strains were identified using physical and biochemical tests. Results show that most strains possess significant antibacterial potential against S. aureus and S. epidermis, but however less toward E. coli. Strain 2B-1B optimum activity was achieved using Luria Bertani broth and at 35°C, with pH 9. Therefore, antimicrobial compounds from these strains can be good candidates for future antibiotics production. Further screening for antimicrobial agents should be carried out in search of novel therapeutic compounds.

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Antimicrobial activity of Bacillus megaterium strains

Cited by 24 publications

References 12 publications

Recapture probability, flight morphology, and microorganisms

Recapture probability, flight morphology, and microorganisms

Sma3s: A universal tool for easy functional annotation of proteomes and transcriptomes

Production of antimicrobial agents by Bacillus spp. isolated from Al-Khor coast soils, Qatar

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