| Effect of ochratoxin A-producing Aspergilli on stilbenic phytoalexin synthesis in grapes. | |
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MedLine Citation:
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PMID: 14518937 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Berries of Vitis vinifera L. cv. Barbera were infected, at veraison and during ripening, by a conidial suspension of A. japonicus, A. ochraceus, A. fumigatus and two isolates of A. carbonarius to control ochratoxin A production and stilbene induced synthesis. The experimental design provided also for intact and punctured berries and incubation temperature of 25 degrees C and 30 degrees C. All the tested fungi, except A. fumigatus, significantly increased trans-resveratrol synthesis over the control, while trans-piceid was not affected; only A. ochraceus significantly elicited the berries to synthesize piceatannol. The two isolates of A. carbonarius produced higher amounts of ochratoxin A than did the other fungi. A positive correlation between ochratoxin A and trans-resveratrol synthesis occurred. trans-Resveratrol and piceatannol showed fungicidal activity against A. carbonarius, being able to completely inhibit fungal growth at a concentration of 300 microg/g and 20 microg/g, respectively. |
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Authors:
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Luigi Bavaresco; Silvia Vezzulli; Paola Battilani; Paola Giorni; Amedeo Pietri; Terenzio Bertuzzi |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 51 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2003 Oct |
Date Detail:
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Created Date: 2003-10-01 Completed Date: 2003-11-06 Revised Date: 2006-11-15 |
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: 6151-7 Citation Subset: IM |
Affiliation:
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Istituto di Frutti-Viticoltura, Università Cattolica del Sacro Cuore, 29100 Piacenza, Italy. luigi.bavaresco@unicatt.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aspergillus
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drug effects,
growth & development*,
metabolism Fruit / metabolism, microbiology* Kinetics Ochratoxins / biosynthesis* Plant Extracts / biosynthesis* Stilbenes / metabolism*, pharmacology Terpenes Vitis / metabolism, microbiology* |
| Chemical | |
Reg. No./Substance:
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0/Ochratoxins; 0/Plant Extracts; 0/Stilbenes; 0/Terpenes; 303-47-9/ochratoxin A; 37297-20-4/phytoalexins; 4339-71-3/3,3',4,5'-tetrahydroxystilbene; 501-36-0/resveratrol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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