3-Dehydroteasterone, a 3,6-Diketobrassinosteroid as a Possible Biosynthetic Intermediate of Brassinolide from Wheat Grain

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1994 English Publisher:Oxford University Press (OUP)Journal:Bioscience, Biotechnology, and Biochemistry, volume 58, pages 1,183-1,185 (issn: 0916-8451, eissn: 1347-6947,

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Authors: Yokota, Takao; Nakayama, Masayoshi; Wakisaka, Takuya; Schmidt, Jurgen; Adam, Gunter;

doi: 10.1271/bbb.58.1183

3-Dehydroteasterone, a 3,6-Diketobrassinosteroid as a Possible Biosynthetic Intermediate of Brassinolide from Wheat Grain

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Abstract

A new brassinosteroid, (22R,23R,24S)-22,23-dihydroxy-24-methyl-5α-cholestan-3,6-dione (6) which is termed 3-dehydroteasterone, as well as castasterone (2), typhasterol (3), teasterone (4), and 6-deoxocastasterone (5) were identified from wheat (Triticum aestivum L.) grains by GC-MS. In addition, the presence of a castasterone epimer and a pair of 6-deoxocastasterone epimers was indicated, although their structures remain undetermined. 3-Dehydroteasterone is considered to be an intermediate in the conversion of teasterone to typhasterol.

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Teikyo University
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