LIGHT-ACTIVATED TOXINS OF THE MORACEAE

被引：17

作者：

SWAIN, LA

DOWNUM, KR

机构：

[1] FLORIDA INT UNIV,DEPT BIOL SCI,UNIV PK,MIAMI,FL 33199

[2] FAIRCHILD TROP GARDEN,MIAMI,FL 33156

来源：

BIOCHEMICAL SYSTEMATICS AND ECOLOGY | 1990年 / 18卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

Dorstenia; Fatoua; Ficus; furanocoumarins; Moraceae; phototoxic activity; UVA;

D O I：

10.1016/0305-1978(90)90052-H

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：

Extracts from 87 species belonging to eight genera of the family Moraceae were screened for phototoxic constituents using the gram negative bacterium E. coli B/r. Only two of the 72 Ficus species tested were positive for phototoxic metabolites. In contrast, all species of Dorstenia (5 spp.) and Fatoua (1 sp.) gave varying degrees of light-activated antimicrobial activity. Root extracts contained more potent photosensitizers or higher concentrations of phototoxins than either leaf or flower extracts. Furanocoumarins were subsequently identified in the extracts of all phototoxin-containing species. © 1990.

引用

页码：153 / 156

页数：4

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