Some species of ruminal bacteria are known to produce antimicrobial peptides, but the screening procedures have mostly been based on in vitro assays using standardized methods. Recent sequencing efforts have made available the genome sequences of hundreds of ruminal microorganisms. In this work, we performed genome mining of the complete and partial genome sequences of 224 ruminal bacteria and ...

The bacteriocin produced by Lactococcus lactis IFPL105 is bactericidal against several Lactococcus and Lactobacillus strains. Addition of the bacteriocin to exponential-growth-phase cells resulted in all cases in bacteriolysis. The bacteriolytic response of the strains was not related to differences in sensitivity to the bacteriocin and was strongly reduced in the presence of autolysin inhibito...

Garvicin ML (GarML) is a circular bacteriocin produced by Lactococcus garvieae DCC43. The recently published draft genome of this strain allowed determination of the genetic background for bacteriocin production. Bioinformatic analysis identified a gene cluster consisting of nine open reading frames likely involved in the production of and immunity to GarML. The garA gene encodes the bacterioci...

Background: Aquaculture is one amongst the growing and major food producing sectors. Shrimp culture is one of the subsectors of aquaculture that attracts more attention because of the economic interest. However, the shrimp culture systems have been facing severe consequences and economical losses due to disease outbreaks. Risk of disease outbreak can be combated with the application of probioti...

Avirulent Erwinia carotovora subsp. carotovora CGE234-M403 produces two types of bacteriocin. For the purpose of cloning the bacteriocin genes of strain CGE234M403, a spontaneous rifampin-resistant mutant of this strain, M-rif-11-2, was isolated. By Tn5 insertional mutagenesis using M-rif-11-2, a mutant, TM01A01, which produces the high-molecular-weight bacteriocin but not the low-molecular-wei...

About 300 bacterial strains (belonging to different genera) were isolated from different indigenous ecological niches. The sources include food (milk and yogurt), water (drinking water and waste water), soil (garden), stool (healthy infants) and clinical samples. The isolates were screened for their bacteriocin production where 54.3% were found as bacteriocin producers. Among them, Lactobacilli...

In Streptococcus mutans, competence for genetic transformation and biofilm formation are dependent on the two-component signal transduction system ComDE together with the inducer peptide pheromone competence-stimulating peptide (CSP) (encoded by comC). Here, it is shown that the same system is also required for expression of the nlmAB genes, which encode a two-peptide nonlantibiotic bacteriocin...

SIMOVA, E. D., D. M. BESHKOVA, Z. P. DIMITROV and Z. I. SIMOV, 2008. In vitro and in situ Bacteriocin activity of lactic acid bacteria from Bulgarian dairy products and methods for making of Lactobacillus protective fermented milks with Bacteriocin inhibitory substances. Bulg. J. Agric. Sci., 14: 28-42 The studies are based on two theses: 1) Fermented milks are the shortest route and the most a...

Skalka, B.: Bacteriocin Typing of Staphylococci. Acta vet. Bmo, 61,1992: 179-187. The report describes bacteriocin typing of staphylococcal strains using the deferred method. The collection of active strains comprised 11 strains, Q of which were isolated by the author, namely 3 S. intermedius strains, 2 S. hominis strains and 1 strain each of S. epidermidis, S. simulans, S. sciuri and S. haemol...

background: weissellicin 110 is the only bacteriocin reported in weissella cibaria up to now. this bacteriocin represents several unique features. this is the first report on the gene sequence that encodes for the bacteriocin.objectives: providing a rapid detection method to isolate the weissellicin 110 encoding gene and determination of the bacteriocin distribution were the objectives.material...