Chemical profile of the parotoid gland secretion of the Amazonian toad (Rhinella margaritifera)

Toxicon. 2020 Jul 30:182:30-33. doi: 10.1016/j.toxicon.2020.04.106. Epub 2020 May 6.

Abstract

The secreted poisonin bufonids (Anura: Bufonidae) include proteins, biogenic amines, toxic bufadienolides and alkaloids. The chemical composition of the methanolic extract of parotoid gland secretions by the Amazonian toad Rhinella margaritifera was evaluated in a UFLC-DAD-micrOTOF system. Of the twenty three compounds found in the methanolic extract, eighteen were identified by the mass/charge ratio as: five arginine diacids, six bufagenins (telocinobufagin, marinobufagin, bufotalin, cinobufotalin, bufalin and cinobufagin), six bufotoxins, and an alkaloid (dehydrobufotenin).

Keywords: Amazonian anuranfauna; Bufadienolides; Bufonidae.

MeSH terms

  • Amphibian Venoms
  • Animals
  • Bufanolides / chemistry*
  • Bufonidae*
  • Cell Line, Tumor
  • Chromatography, High Pressure Liquid
  • Parotid Gland / metabolism*

Substances

  • Amphibian Venoms
  • Bufanolides
  • huachansu
  • telocinobufagin
  • bufotalin
  • cinobufotalin
  • cinobufagin
  • bufalin