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A substance toxic to a considerable number of fungi has beenfound in 27 species and four hybrids of Passiflora and in somegenera of the related families, Turneraceae and Flacourtiaceae.It is found in living tissues particularly after wounding. Theactive principle moves from living tissues into agar and intowater. It can be extracted from water diffusates by organicsolvents. 相似文献
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