Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 342595
Title Impact of phenolic compounds and related enzymes in Sorghum varieties for resistance and susceptibility to biotic and abiotic stresses
Author(s) Dicko, M.H.; Gruppen, H.; Barro, C.; Traore, A.S.; Berkel, W.J.H. van; Voragen, A.G.J.
Source Journal of Chemical Ecology 31 (2005)11. - ISSN 0098-0331 - p. 2671 - 2688.
DOI https://doi.org/10.1007/s10886-005-7619-5
Department(s) Food Chemistry
Biochemistry
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) grain mold resistance - 3-deoxyanthocyanidin phytoalexins - polyphenol oxidase - burkina-faso - peroxidase - genotypes - apigeninidin - accumulation - mechanisms - sorghicola
Abstract Contents of phenolic compounds and related enzymes before and after sorghum grain germination were compared between varieties either resistant or susceptible to biotic (sooty stripe, sorghum midge, leaf anthracnose, striga, and grain molds) and abiotic (lodging, drought resistance, and photoperiod sensitivity) stresses. Independent of grain germination, sorghum varieties resistant to biotic and abiotic stresses had on average higher contents of proanthocyanidins (PAs), 3-deoxyanthocyanidins (3-DAs), and flavan-4-ols than susceptible varieties. Results show that content of 3-DAs is a good marker for sorghum resistance to both biotic and abiotic stresses because it correlates with resistance to all stresses except for photoperiod sensitivity. The second good marker for stress resistance is content of PAs. Total phenolic compounds and the activities of related enzymes are not good markers for stress resistance in sorghum grains
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