Plantaricins S and T, two new bacteriocins produced by Lactobacillus plantarum LPCO10 isolated from a green olive fermentation

Article Abstract:

The production of plantaricins S and T by Lactobacillus plantarum LPCO10 isolated from a green olive fermentation was described. L. plantarum LPCO10 produced plantaricin S during log phase and also plantaricin T with a different activity spectrum in late stationary phase. Plantaricin S exhibited a bactericidal mode of action. Both bacteriocins are only active against lactic acid bacteria. In sodium dodecyl sulfate-polyacrylamide gels, plantaricin S migrated as a 2.5-kDa peptide and plantaricin T as a lower-molecular-weight peptide.

Physiological aspects, Lactobacillus plantarum

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ISLpl1 is a functional IS30-related insertion element in Lactobacillus plantarum that is also found in other lactic acid bacteria

Article Abstract:

The genome distribution study reveals different numbers and patterns of insertion sequence 30-related element ISLpl1 sequences in many Lactobacillus plantarum strain and in Pediococcus strains. Data indicate that ISLpl1 pattern changes over generation of L. plantarum. Furthermore, it is linked to cold shock adaptation genes, bacteiocin production, sugar utilization, or antibiotic resistnace.

France, Science & research, Analysis, Genetic aspects, Structure-activity relationships (Biochemistry), Gram-positive bacteria, Insertion elements, DNA, DNA insertion elements

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Three glycoproteins with antimutagenic activity identified in Lactobacillus plantarum KLAB21

Article Abstract:

Researchers describe the properties of three glycoproteins isolated from Lactobacillus plantarum KLAB21 from a Korean fermented dish called kimchi that protect Salmonella enterica serovar typhimurium TA100 cells from the mutagen N-methyl-N'-nitro-N-nitrosoguanidine.

Mutagens

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