The Outer Membrane of Gram-Negative Bacteria Inhibits Antibacterial Activity of Brochocin-C-Reference-Cited by-同舟云学术

The Outer Membrane of Gram-Negative Bacteria Inhibits Antibacterial Activity of Brochocin-C

Published:1999-10 Issue:10 Volume:65 Page:4329-4333
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Gao Yan¹,van Belkum Marco J.¹,Stiles Michael E.¹

Affiliation:

1. Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5

Abstract

ABSTRACT Brochocin-C is a two-peptide bacteriocin produced by Brochothrix campestris ATCC 43754 that has a broad activity spectrum comparable to that of nisin. Brochocin-C has an inhibitory effect on EDTA-treated gram-negative bacteria, Salmonella enterica serovar Typhimurium lipopolysaccharide mutants, and spheroplasts of Typhimurium strains LT2 and SL3600. Brochocin-C treatment of cells and spheroplasts of strains of LT2 and SL3600 resulted in hydrolysis of ATP. The outer membrane of gram-negative bacteria protects the cytoplasmic membrane from the action of brochocin-C. It appears that brochocin-C is similar to nisin and possibly does not require a membrane receptor for its function; however, the difference in effect of the two bacteriocins on intracellular ATP indicates that they cause different pore sizes in the cytoplasmic membrane.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.65.10.4329-4333.1999

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