Markers for oxidative stress associated with soft rots in French beans (Phaseolus vulgaris) infected by Botrytis cinerea

I. Muckenschnabel, B. Williamson, B.A. Goodman, G.D. Lyon, D. Stewart, N. Deighton

    Research output: Contribution to journalArticle

    39 Citations (Scopus)

    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
    Original languageEnglish
    Pages (from-to)376-381
    Number of pages6
    JournalPlanta
    Volume212
    Issue number3
    DOIs
    Publication statusPublished - 2001

    Keywords

    • antioxidant
    • botrytis
    • free radicals
    • lipid peroxidation
    • oxidative stress
    • phaseolus

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