Peroxidase (POD) plays an important role in the biosynthesis of disease-lignin, which protects plants from fungal invasion.1) A novel POD inhibitor, ST·l (1), was isolated from a fungus, and its chemical structure was elucidated to be 1,3-dihydro-4,5,6-trihydroxy-l,3 dimethoxy-7-methylisobenzofuran by a combination of chemical modification and spectroscopic techniques. ST -1 effectively scavenged oxygen radicals and also suppressed the phytoalexin accumulation in kidney bean.
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Kobayashi et al. (1993) studied this question.
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