Abstract
The role of active oxygen species has been studied in spreading soft-rot lesions caused by the necrotrophic fungal pathogen Botrytis cinerea Pers.:Fr. in leaves of four genotypes of French bean (Phaseolus vulgaris L.). Large increases were observed for the aldehydic end-products of oxidative damage, malondialdehyde and 4-hydroxy-2-nonenal, as a result of infection in each of the genotypes studied. Similar increases were found in a stable free radical and g=4.27 Fe(III) signals, but not Mn(II) signals, in electron paramagnetic resonance spectra. These changes were accompanied by large decreases in ascorbic acid levels, with changes in the antioxidant glutathione being genotype dependent.
© Springer-Verlag
© Springer-Verlag
Original language | English |
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Pages (from-to) | 376-381 |
Number of pages | 6 |
Journal | Planta |
Volume | 212 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2001 |
Keywords
- antioxidant
- botrytis
- free radicals
- lipid peroxidation
- oxidative stress
- phaseolus