Identification of phytotoxins from Botryosphaeria obtusa, a pathogen of black dead arm disease of grapevine
- Djoukeng, Jules Désiré Institute of Biology, University of Neuchâtel, Switzerland
- Polli, Suzanna Institute of Biology, University of Neuchâtel, Switzerland
- Larignon, Philippe Institut Français de la Vigne et du Vin, Unité Rhône-Méditerranée, Rodilhan, France
- Abou-Mansour, Eliane Institute of Biology, University of Neuchâtel, Switzerland - Plant Biology Department, University of Fribourg, Switzerland
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16.01.2009
Published in:
- European Journal of Plant Pathology. - 2009, vol. 124, no. 2, p. 303-308
English
A bioassay-guided fractionation of a culture filtrate of Botryosphaeria obtusa led to the isolation of four dihydroisocoumarins, named mellein 1, 4-hydroxymellein 2, 7- hydroxymellein 3 and the new 4,7-dihydroxymellein 4. LC-UV-DAD-MS analysis of vine wood infected by B. obtusa revealed the presence of mellein (1). Botryosphaeria obtusa was also able to oxidise wood δ -resveratrol into the dimer delta-viniferin. The structures of isolated phytotoxins were established on the basis of IR, MS, 1D and 2D NMR.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Biologie
- Language
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- English
- Classification
- Botany
- License
- License undefined
- Identifiers
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- RERO DOC 12212
- DOI 10.1007/s10658-008-9419-6
- Persistent URL
- https://folia.unifr.ch/unifr/documents/301118
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