COLUMBIANETIN, A PHYTOALEXIN ASSOCIATED WITH CELERY RESISTANCE TO PATHOGENS DURING STORAGE

被引：25

作者：

AFEK, U ^{[1
]}

CARMELI, S ^{[1
]}

AHARONI, N ^{[1
]}

机构：

[1] TEL AVIV UNIV,SCH CHEM,IL-69978 TEL AVIV,ISRAEL

来源：

PHYTOCHEMISTRY | 1995年 / 39卷 / 06期

关键词：

APIUM GRAVEOLENS; UMBELLIFERAE; CELERY; COLUMBIANETIN; PHYTOALEXIN; FURANOCOUMARINS; PSORALENS; STORAGE;

D O I：

10.1016/0031-9422(95)00125-Q

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Columbianetin, rather than psoralens, was found to be a new phytoalexin associated with celery (Apium graveolens) resistance to pathogens during storage. In vitro, columbianetin had at least 80 times greater antifungal activity than furanocoumarins (psoralens and angelicin). In vivo, the concentration of furanocoumarins in celery was 8 mu g g(-1) fr. wt, and this is less than 0.25% of the concentration required for growth inhibition of celery pathogens. However, the concentration of columbianetin in vivo was 38 mu g g(-1) fr. wt, and this is close to the concentration required for growth inhibition of celery pathogens in vitro.

引用

页码：1347 / 1350

页数：4

共 17 条

[1] MECHANISM OF PHOTOSENSITIVITY REACTIONS TO DISEASED CELERY [J].