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Occurrence of Amanita Toxins in American Collections of Deadly Amanitas

1966; Elsevier BV; Volume: 55; Issue: 6 Linguagem: Inglês

10.1002/jps.2600550612

1520-6017

Varro E. Tyler, R. G. Benedict, L.R. Brady, James E. Robbers,

Insect and Pesticide Research

Chromatographic examination of Amanita phalloides carpophores collected in the Pacific Northwest revealed the presence of relatively large amounts (1.5–1.9 mg./ Gm. dry wt.) of β-amanitin but lesser concentrations (trace to 0.93 mg./Gm.) of α-amanitin. It was concluded that these represent a distinct chemical race of A. phalloides, apparently restricted in its occurrence to the states of Washington, Oregon, and California. Other species investigated included Amnnita bisporigera, the most toxic yet found in the United States, containing 2.2 5–5.0 mg. of α- and β- amanitins per Gm. Amanita verna specimens contained variable amounts of the two toxins (0 to 1.7 mg./Gm.), but very small quantities (0 to <0.1 mg./Gm.) of α- amanitin only were detected in samples of Amanita virosa. Chromatographic examination of Amanita phalloides carpophores collected in the Pacific Northwest revealed the presence of relatively large amounts (1.5–1.9 mg./ Gm. dry wt.) of β-amanitin but lesser concentrations (trace to 0.93 mg./Gm.) of α-amanitin. It was concluded that these represent a distinct chemical race of A. phalloides, apparently restricted in its occurrence to the states of Washington, Oregon, and California. Other species investigated included Amnnita bisporigera, the most toxic yet found in the United States, containing 2.2 5–5.0 mg. of α- and β- amanitins per Gm. Amanita verna specimens contained variable amounts of the two toxins (0 to 1.7 mg./Gm.), but very small quantities (0 to <0.1 mg./Gm.) of α- amanitin only were detected in samples of Amanita virosa.