| Sphaerodes mycoparasitica biotrophic mycoparasite of 3-acetyldeoxynivalenol- and 15-acetyldeoxynivalenol-producing toxigenic Fusarium graminearum chemotypes. | |
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MedLine Citation:
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PMID: 21204935 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Fusarium spp. are economically important crop pathogens and causal agents of Fusarium head blight (FHB) of cereals worldwide. Of the FHB pathogens, Fusarium graminearum 3-acetyldeoxynivalenol (3-ADON) and 15-acetyldeoxynivalenol (15-ADON) are the most aggressive mycotoxigenic chemotypes, threatening food and feed quality as well as animal and human health. The objective of the study was to evaluate host specificity and fungal-fungal interactions of Sphaerodes mycoparasitica- a recently described mycoparasite - with F. graminearum 3- and 15-ADON strains by employing in vitro, microscopic and PCR techniques. Results obtained in this study show that the germination of mycoparasite ascospore in the presence of F. graminearum 3- and 15-ADON filtrates was greatly improved compared with Fusarium proliferatum and Fusarium sporotrichioides filtrates, suggesting a compatible interaction. Using quantitative real-time PCR with Fusarium-specific (Fg16N) and trichothecene Tri5 (Tox5-1/2)-specific primer sets, S. mycoparasitica was found to reduce the amount of F. graminearum 3-ADON and 15-ADON DNAs under separate coinoculation assays. Sphaerodes mycoparasitica was not only able to germinate in the presence of F. graminearum filtrates, but also established biotrophic mycoparasitic relations with two F. graminearum chemotypes and suppressed Fusarium growth. |
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Authors:
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Vladimir Vujanovic; Yit Kheng Goh |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-12-23 |
Journal Detail:
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Title: FEMS microbiology letters Volume: - ISSN: 1574-6968 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-1-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7705721 Medline TA: FEMS Microbiol Lett Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved. |
Affiliation:
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Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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