Metabolic transformation of the brassinosteroid 24-epi-castasterone by thecockroach Periplaneta americana

Authors
Schmidt, J Richter, K Voigt, B Adam, G
Citation
J. Schmidt et al., Metabolic transformation of the brassinosteroid 24-epi-castasterone by thecockroach Periplaneta americana, Z NATURFO C, 55(3-4), 2000, pp. 233-239
Citations number
40
Categorie Soggetti
Biochemistry & Biophysics
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG C-A JOURNAL OF BIOSCIENCES
ISSN journal
09395075 → ACNP
Volume
55
Issue
3-4
Year of publication
2000
Pages
233 - 239
Database
ISI
SICI code
0939-5075(200003/04)55:3-4<233:MTOTB2>2.0.ZU;2-E
Abstract
After feeding of 24-epi-castasterone to the cockroach Periplaneta americana an organ-specific epimerization of the brassinosteroid to 2,24-diepi-casta sterone could be detected in female insects. The metabolite being observed only in the ovaries and not in the testes of the insect was identified by G C/MS in comparison with a synthesized authentic sample. Contrary, 24-epi-br assinolide is not metabolized in the sexual organs of Periplaneta americana . This is the first evidence of a metabolic transformation of a brassinoste roid in insects.