IDENTIFICATION OF BRASSINOSTEROIDS WITH EPIMERIZED SUBSTITUENTS AND OR THE 23-OXO GROUP IN POLLEN AND ANTHERS OF JAPANESE CEDAR/

Authors
YOKOTA T HIGUCHI K TAKAHASHI N KAMURO Y WATANABE T TAKATSUTO S
Citation
T. Yokota et al., IDENTIFICATION OF BRASSINOSTEROIDS WITH EPIMERIZED SUBSTITUENTS AND OR THE 23-OXO GROUP IN POLLEN AND ANTHERS OF JAPANESE CEDAR/, Bioscience, biotechnology, and biochemistry, 62(3), 1998, pp. 526-531
Citations number
30
Categorie Soggetti
Biology,Agriculture,"Biothechnology & Applied Migrobiology","Food Science & Tenology
Journal title
Bioscience, biotechnology, and biochemistry → ACNP
ISSN journal
09168451
Volume
62
Issue
3
Year of publication
1998
Pages
526 - 531
Database
ISI
SICI code
0916-8451(1998)62:3<526:IOBWES>2.0.ZU;2-N
Abstract
Brassinosteroids in Japanese cedar (Cryptomeria japonica) were analyze d by GC-MS after being purified by reversed-phase HPLC. The occurrence of four stereoisomers of 23-dehydrobrassinolide, three stereoisomers of 28-homobrassinolide, and an isomer of homodolicholide was revealed. The stereochemical structures of these brassinosteroids remain undete rmined, Among these, the 23-dehydrobrassinolide stereoisomers are the first brassinosteroids identified with an oxo group located at the C23 position. In addition, known brassinosteroids 3-dehydroteasterone, ty phasterol and dolicholide were identified.