Isolation and characterization of actinomycetes antagonistic to pathogenic Vibrio spp. from nearshore marine sediments

A total of 94 actinomycete strains were isolated from the marine sediments of a shrimp farm, 87.2% belonged to the genus Streptomyces, others were Micromonospora spp. Fifty-one percent of the actinomycete strains showed activity against the pathogenic Vibrio spp. strains. Thirty-eight percent of mar...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2005-07, Vol.21 (5), p.679-682
Main Authors: You, J.L, Cao, L.X, Liu, G.F, Zhou, S.N, Tan, H.M, Lin, Y.C
Format: Article
Language:English
Subjects:
Actinomycetales
animal pathogenic bacteria
Aquaculture
Biological and medical sciences
Biological control
Biology of microorganisms of confirmed or potential industrial interest
Biotechnology
campylobacteriosis
flora
Fundamental and applied biological sciences. Psychology
Isolation and description
mariculture
Marine
Marine sediments
Microbiology
Micromonospora
Mission oriented research
Penaeidae
probiotics
Sediments
Shellfish
Shellfish farming
shrimp culture
siderophores
Streptomyces
Streptomycetes
Vibrio
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Summary:A total of 94 actinomycete strains were isolated from the marine sediments of a shrimp farm, 87.2% belonged to the genus Streptomyces, others were Micromonospora spp. Fifty-one percent of the actinomycete strains showed activity against the pathogenic Vibrio spp. strains. Thirty-eight percent of marine Streptomyces strains produced siderophores on chrome azurol S (CAS) agar plates. Seven strains of Streptomyces were found to produce siderophores and to inhibit the growth of Vibrio spp. in vitro. Two of them belonged to the Cinerogriseus group, the most frequently isolated group of Streptomyces. The results showed that streptomycetes could be a promising source for biocontrol agents in aquaculture.[PUBLICATION ABSTRACT]
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-004-3851-3