phytoallexin

phytoallexin

chemical produced by plants in response to tissue damage by microbes or herbivores, usually insects. Such chemicals may be toxic to animals the affected plants, e.g. furanocoumarins in fungus-infected parsnips may cause primary photosensitization in pigs.
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It has been reported that YE elicited phytoallexin accumulation in several plant species in vitro (Molnar et al.