Amatoxin and phallotoxin composition in species of the genus Amanita in Colombia: A taxonomic perspective

N. Vargas, A. Bernal, V. Sarria, A. Franco-Molano, S. Restrepo

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Some species in the genus Amanita have a great variety of toxic secondary metabolites. They are characterized macroscopically by having a white spore print and free gills, and microscopically by the presence of a divergent hymenophoral trama. Some species of Amanita present in Colombia were chemically characterized by analyzing their toxin composition using HPLC. Samples were collected in oak (Quercus humboldtii) and pine (Pinus radiata) forests. Twelve species were recovered, Amanita fuligineodisca, Amanita xylinivolva, Amanita flavoconia, Amanita rubescens, Amanita bisporigera, Amanita muscaria, Amanita humboldtii, Amanita sororcula, Amanita brunneolocularis, Amanita colombiana, Amanita citrina, Amanita porphyria as well as two unreported species. Results showed that most of the analyzed species have α -amanitin in concentrations ranging from 50 ppm to 6000 ppm. Concentrations of α-amanitin in the pileus were significantly greater than in the stipe. Phalloidin and phallacidin were only present in A. bisporigera. Chromatographic profiles are proposed as an additional taxonomic tool since specific peaks with similar retention times were conserved at the species level.

Original languageEnglish (US)
Pages (from-to)583-590
Number of pages8
JournalToxicon
Volume58
Issue number6-7
DOIs
StatePublished - Nov 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Toxicology

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