نتایج جستجو برای: bacteriocins
تعداد نتایج: 1258 فیلتر نتایج به سال:
We evaluated anti-Campylobacter activity among 365 Bacillus and Paenibacillus isolates from poultry production environments. One novel antagonistic Bacillus circulans and three Paenibacillus polymyxa strains were identified and further studied. Cell-free ammonium sulfate precipitate (crude antimicrobial preparation) was obtained from each candidate culture. Zones of Campylobacter growth inhibit...
background : proteus spp. belongs to the family of enterobacteriaceae . these bacteria are gram-negative and motile microorganisms and known as the third most common causes of urinary tract infections. the aim of the current study was to investigate the effects of some secondary metabolites from probiotic strains of lactobacillus spp. on swarming and growth of proteus mirabilis and p. vulgar...
Modular bacteriocins represent a major group of secreted protein toxins with a narrow spectrum of activity, involved in interference competition between Gram-negative bacteria. These antibacterial proteins include a domain for binding to the target cell and a toxin module at the carboxy terminus. Self-inhibition of producers is provided by coexpression of linked immunity genes that transiently ...
In recent years, a group of antibacterial proteins produced by gram-positive bacteria have attracted great interest in their potential use as food preservatives and as antibacterial agents to combat certain infections due to gram-positive pathogenic bacteria. They are ribosomally synthesized peptides of 30 to less than 60 amino acids, with a narrow to wide antibacterial spectrum against gram-po...
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