| Pseudomonas sp M174 inhibits the fish pathogen Flavobacterium psychrophilum. | |
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MedLine Citation:
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PMID: 21554504 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Aims: To study the antagonic affect of probiotic Pseudomonas M174 on the fish pathogen Flavobacterium psychrophilum. Methods and Results: The ability of Pseudomonas M174 to inhibit the growth of F. psychrophilum was examined in iron sufficient and deficient media. Possible siderophore production was also investigated. Antagonistic activity was confirmed in disease challenge experiments using a rainbow trout (Oncorhynchus mykiss) model. Adhesion of Pseudomonas M174 to fish surfaces, and its ability to stimulate innate immunity was also investigated in vivo. Pseudomonas M174 antagonized F. psychrophilum and produced siderophores in vitro. In challenge experiments with F. psychrophilum, fish fed with Pseudomonas M174 had lower levels of mortalities than the controls. It was possible to find Pseudomonas M174 in the intestinal content of these fish after feeding and bathing with the probiotic, but probiotic was obtained from the gills only after feeding. Respiratory burst activity was also found to be enhanced in the M174 fed fish. Conclusion: These results suggest that M174 is a potential probiotic against F. psychrophilum and has several modes of action. Significance and Impact of the Study: Probiotics are a promising alternative to the use of antibiotics in aquaculture and could be a more sustainable disease control method. |
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Authors:
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T L Korkea-Aho; J Heikkinen; K D Thompson; A von Wright; B Austin |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-7 |
Journal Detail:
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Title: Journal of applied microbiology Volume: - ISSN: 1365-2672 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9706280 Medline TA: J Appl Microbiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Journal compilation © 2011 The Society for Applied Microbiology. |
Affiliation:
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Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK Department of Biosciences, University of Eastern Finland, PO Box 1627, 70211 Kuopio, Finland. |
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