猕猴桃酸，一种从未成熟猕猴桃果实中提取的新型三萜类植物抗毒素。

Actinidic acid, a new triterpene phytoalexin from unripe kiwi fruit.

作者信息

Lahlou E H, Hirai N, Kamo T, Tsuda M, Ohigashi H

机构信息

CREST, Japan Science and Technology Corporation, Kawaguchi.

出版信息

Biosci Biotechnol Biochem. 2001 Feb;65(2):480-3. doi: 10.1271/bbb.65.480.

DOI:10.1271/bbb.65.480

PMID:11302196

Abstract

Seven phytoalexins (1-7), including a new compound, were isolated from the peel of unripe kiwi fruit (Actinidia deliciosa cv. Golden King) that had been wounded and inoculated with Colletotrichum musae. The new phytoalexin (1) was identified as 2alpha,3beta,23-trihydroxy-12,20(30)-ursadien-28-oic acid, and named actinidic acid. Phytoalexins 2-6 are known triterpenes but have not previously been described as phytoalexins. Phytoalexin 7 is the same triterpene as the phytoalexin of nectarine fruit.

摘要

从受伤并接种了香蕉炭疽菌的未成熟金奇异果（美味猕猴桃品种金王）果皮中分离出七种植物抗毒素（1-7），其中包括一种新化合物。新的植物抗毒素（1）被鉴定为2α,3β,23-三羟基-12,20(30)-乌苏二烯-28-酸，并命名为猕猴桃酸。植物抗毒素2-6是已知的三萜类化合物，但以前未被描述为植物抗毒素。植物抗毒素7与油桃花果实中的植物抗毒素是同一种三萜类化合物。