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Inhibitory activity of antibiotic‐producing marine bacteria against fish pathogens
Author(s) -
DOPAZO C.P.,
LEMOS M.L.,
Lodeiros C.,
Bolinches J.,
Barja J.L.,
Toranzo Alicia E.
Publication year - 1988
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1988.tb01497.x
Subject(s) - edwardsiella tarda , microbiology and biotechnology , bacteria , aeromonas , biology , vibrio , pathogenic bacteria , antibiotics , pseudomonas , marine bacteriophage , yersinia , yersinia ruckeri , pseudomonas aeruginosa , aeromonas salmonicida , fish <actinopterygii> , fishery , genetics , rainbow trout
The activity of antibiotic‐producing marine bacteria was assayed against bacterial fish pathogens belonging to the genera Vibrio, Aeromonas, Pasteurella, Edwardsiella, Yersinia and Pseudomonas with the aim of evaluating the possible use of these marine strains for controlling epizootics in aquaculture. Inhibition tests on solid medium showed that, in general, the majority of fish bacteria were strongly sensitive to the marine bacteria. Only two strains ( Edwardsiella tarda and Pseudomonas aeruginosa ), were resistant to all the antibiotic‐producing strains. The results of antagonism assays in sea water, however, varied according to the fish pathogens examined. Experiments conducted using cell‐free supernatant fluids of marine bacteria demonstrated the involvement of antibiotic substances in the inhibition of fish pathogens.