The compn. of the defense secretions of 4 species of Chrysolina beetles feeding on St. John's wort (Hypericum perforatum) was investigated. In contrast with other members of this genus which produce cardiac glycosides, these 4 species contain new polyoxygenated steroid glycosides. The structures of 7 of these derivs. were detd.
New polyoxygenated steroid glycosides from the defence glands of several species of Chrysolinina beetles (Coleoptera:Chrysomelidae)
RICCIO, Raffaele
1990-01-01
Abstract
The compn. of the defense secretions of 4 species of Chrysolina beetles feeding on St. John's wort (Hypericum perforatum) was investigated. In contrast with other members of this genus which produce cardiac glycosides, these 4 species contain new polyoxygenated steroid glycosides. The structures of 7 of these derivs. were detd.File in questo prodotto:
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