从三色牵牛中分离出两种氧脂素及其气孔开放活性

Isolation and stomatal opening activity of two oxylipins from Ipomoea tricolor.

作者信息

Ohashi Teruhisa, Ito Yoshinori, Okada Masahiro, Sakagami Youji

机构信息

Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.

出版信息

Bioorg Med Chem Lett. 2005 Jan 17;15(2):263-5. doi: 10.1016/j.bmcl.2004.10.088.

DOI:10.1016/j.bmcl.2004.10.088

PMID:15603936

Abstract

Bioassay-guided fractionation of a 50% MeOH extract of Ipomoea tricolor enabled the isolation of two oxylipins, cis-12-oxophytodienoic acid (OPDA, 1) and a novel monogalactosylmonoacylglyceride (2) containing OPDA, that acted as inducers of stomatal opening. These oxylipins enhanced stomatal opening of Commelina communis in darkness at micromolar concentrations.

摘要

对三色牵牛50%甲醇提取物进行生物测定导向的分级分离，使得两种氧化脂质得以分离，即顺式-12-氧代植物二烯酸（OPDA，1）和一种含有OPDA的新型单半乳糖基单酰基甘油（2），它们可作为气孔开放的诱导剂。这些氧化脂质在微摩尔浓度下可增强鸭跖草在黑暗中的气孔开放。