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Leuckert, C/ Ahmadjian, V/ Culberson, CF/ Johnson, A 1990: Xanthones and depsidones of the lichen Lecanora dispersa in nature and of its mycobiont in culture. - Mycologia 82(3): 370-378. [RLL List # 142 / Rec.# 11399]
Abstract: 3 tables. 6 figures. ["A chemotype of the natural lichen Lecanora dispersa contains 2, 7-dichlorolichexanthone as the major secondary compound, but cultured spore isolates, growing without the alga, produced pannarin and related depsidones (HPLC, TLC, and MS) instead. Surprisingly, pannarin could not be confirmed in voucher materials of the natural source lichen, but the biosynthetic potential for this depsidone was proven for the species by a herbarium survey. The production of pannarin by the isolated mycobionts reported in the present study, however, unequivocally confirms Komyia and Shibata's hypothesis that typical lichen depsidones can indeed be synthesized by isolated lichen fungi with no assistance from the alga."]

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