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Bacteriocin activity of Pseudomonas sp. on enteropathogenic bacteria in an artificial aquatic system
Author(s) -
Padilla C.,
Brevis P.,
Lobos O.,
Hubert E.
Publication year - 1996
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1996.tb01339.x
Subject(s) - art , humanities , microbiology and biotechnology , biology
The bacteriocin of Pseudomonas sp. strain R10 was active in vitro against several enteropathogenic bacteria: enterotoxigenic Escherichia coli, Salmonella typhimurium, Salmonella typhi, Shigella flexneri and Shigella sonnei. Pseudomonas sp. R10 was studied for 5 d in an aquatic system in the presence of strains of the enteropathogenic species mentioned. All the target strains were inhibited in the presence of bacteriocinogenic Pseudomonas sp. R10 and the highest antibacterial action was observed on the second day. Similar results were obtained with the partially purified bacteriocin, although the greatest bactericidal action, in all the studied target strains, was observed on the first day and the bacterial recounts were slightly higher overall.