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Amatoxin and phallotoxin concentration in Amanita bisporigera spores

     ¹ Brigham Young University, Provo, Utah
² Biology Department, St. Lawrence University, St. Lawrence University, Canton, New York, 13617, United States of America
³ St. Lawrence University, Canton, New York

Even though amatoxins and phallotoxins have been well characterized previously in basidiocarps of Amanita species, to our knowledge there is no report of these toxins in spores of Amanita has been published. Reversed phase HPLC was used to determine non-zero concentrations of -amanitin (0.30 mg/g), and phallacidin (0.02 mg/g) in spores taken from white Amanita sect. phalloideae species. We did not find significant amounts of phalloidin in Amanita spores. We also report concentrations of these toxins from pileus and stipe tissues that are similar to previously reported values, lending support to the hypothesis that toxin concentrations in spores are much less than in other basidiocarp tissues.

Key words: -amanitin, Amanita, Basidiomycota, phallacidin, spores