| Antioomycete activity of gamma-oxocrotonate fatty acids against P. infestans. | |
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MedLine Citation:
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PMID: 19778058 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Infections with Phytophthora infestans, the causal agent of potato and tomato late blight disease, are difficult to control and can lead to considerable agricultural losses. Thus, the development of new effective agents against the pathogen is of great interest. In previous work, (E)-4-oxohexadec-2-enoic acid (3) was isolated from Hygrophorus eburneus, which exhibited fungicidal activity against Cladosporium cucumerinum. Here, the inhibitory effect of 3 on P. infestans spore germination and mycelium growth in vitro is demonstrated. The in vivo effect on infections of whole potato plants was investigated by spraying plants with the sodium salt of 3, sodium (2E)-4-oxohexadec-2-enoic acid (4), prior to P. infestans inoculation. Additionally, the influence of 3 on mycelium growth of Colletotrichum coccodes, the causal agent of potato black dot disease, was analyzed. In all approaches, a significant inhibition of pathogen development was achieved. Importantly, the unsaturated fatty acid exerted no toxic effect when sprayed on plants, a prerequisite for its commercial use. |
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Authors:
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Lennart Eschen-Lippold; Tobias Draeger; Axel Teichert; Ludger Wessjohann; Bernhard Westermann; Sabine Rosahl; Norbert Arnold |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 57 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2010-06-21 Completed Date: 2010-10-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 9607-12 Citation Subset: IM |
Affiliation:
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Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Colletotrichum
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drug effects Fatty Acids, Unsaturated / pharmacology* Fungicides, Industrial / pharmacology* Phytophthora infestans / drug effects*, growth & development Plant Diseases / microbiology Solanum tuberosum / microbiology Spores, Fungal / drug effects, growth & development |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Unsaturated; 0/Fungicides, Industrial |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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