TY - JOUR
T1 - Amatoxin and phallotoxin composition in species of the genus Amanita in Colombia
T2 - A taxonomic perspective
AU - Vargas, N.
AU - Bernal, A.
AU - Sarria, V.
AU - Franco-Molano, A.
AU - Restrepo, S.
N1 - Funding Information:
Authors would like to thank Facultad de Ciencias at Universidad de los Andes for funding part of the project. Also we would like to thank Doctor Heinz Faulstich from Max Planck Institute for providing the toxin standards used in the chemical analyses. We are grateful to Alix Patricia Jaimes who guided us in the use and interpretarion of HPLC results and Edna Delgado to let us work in the Laboratory of Environmental Chemistry at Universidad de Los Andes.
PY - 2011/11
Y1 - 2011/11
N2 - 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.
AB - 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.
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U2 - 10.1016/j.toxicon.2011.09.005
DO - 10.1016/j.toxicon.2011.09.005
M3 - Article
C2 - 21945592
AN - SCOPUS:82555179206
SN - 0041-0101
VL - 58
SP - 583
EP - 590
JO - Toxicon
JF - Toxicon
IS - 6-7
ER -