Stereoisomers of Castasterone, 3-Epicastasterone and 2,3-Diepicastasterone, in Immature Seeds of Phaseolus vulgaris

被引：2

作者：

Lee, Sang Cheul ^{[1
]}

Joo, Se-Hwan ^{[1
]}

Kim, Seong-Ki ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Life Sci, Seoul 156756, South Korea

来源：

JOURNAL OF PLANT BIOLOGY | 2011年 / 54卷 / 01期

关键词：

Brassinosteroids; 3-Epicastasterone; 2,3-Diepicastasterone; Structure elucidation; Biological activity; BRASSINOSTEROID BIOSYNTHESIS; MARCHANTIA-POLYMORPHA; BRASSINOLIDE; OXIDATION; PLANTS;

D O I：

10.1007/s12374-010-9131-x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A capillary GC-MS analysis revealed that two stereoisomers of castasterone are contained in immature seeds of Phaseolus vulgaris. 400 MHz proton NMR analysis of the stereoisomers determined they are A ring epimers of castasterone, 3-epicastasterone and 2,3-diepicastasterone. In rice lamina inclination assay, 3-epicastasterone and 2,3-diepicastasterone showed reduced biological activity than that of castasterone. Together with our previous finding that 2-epicastasterone exhibits a less biological activity than CS, this result indicates that epimerization of hydroxyl at C-2 or/and C-3 is/are inactive processes to reduce biological activity of CS after exerting as a bioactive brassinosteroid in P. vulgaris.

引用

页码：10 / 14

页数：5

共 6 条

[1] Stereoisomers of Castasterone, 3-Epicastasterone and 2,3-Diepicastasterone, in Immature Seeds of Phaseolus vulgaris
Sang Cheul Lee
Se-Hwan Joo
Seong-Ki Kim
Journal of Plant Biology, 2011, 54 : 10 - 14
[2] Characterization of 2-Epicastasterone from Immature Seeds of Phaseolus vulgaris
Park, Chan-Ho
Yokota, Takao
Kim, Seong-Ki
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2009, 30 (10): : 2193 - 2194
[3] Identification of a new brassinosteroid, 23-dehydro-2-epicastasterone, from immature seeds of Phaseolus vulgaris
Hwang, Jung Yun
Park, Chan Ho
Namgung, Hojin
Kim, Seong Ki
JOURNAL OF PLANT BIOLOGY, 2006, 49 (05) : 409 - 412
[4] 2-Deoxy-25-methyldolichosterone and 3-epi-2-Deoxy-25-methyldolichosterone in Immature Seeds of Phaseolus vulgaris
Park, Chan-Ho
Yokota, Takao
Kim, Seong-Ki
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2009, 30 (10): : 2422 - 2424
[5] Identification of a new brassinosteroid, 23-dehydro-2-epicastasterone, from immature seeds ofPhaseolus vulgaris
Jung Yun Hwang
Chan Ho Park
Hojin Namgung
Seong Ki Kim
Journal of Plant Biology, 2006, 49 : 409 - 412
[6] 2-Deoxy-25-methyldolichosterone and 3-epi-2-deoxy-25-methyldolichosterone in immature seeds of Phaseolus vulgaris
Department of Life Science, Chung-Ang University, Seoul 156-756, Korea, Republic of
不详
Bull. Korean Chem. Soc., 2009, 10 (2422-2424): : 2422 - 2424

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