EFFECT OF RISHITIN ON POTATO TONOPLAST VESICLE AND VACUOLE PROTON TRANSPORT

被引：5

作者：

GIANNINI, JL ^{[1
]}

NELSON, M ^{[1
]}

SPESSARD, GO ^{[1
]}

机构：

[1] ST OLAF COLL, DEPT CHEM, NORTHFIELD, MN 55057 USA

来源：

PHYTOCHEMISTRY | 1995年 / 40卷 / 06期

基金：

美国国家卫生研究院;

关键词：

RISHITIN; POTATO; SOLANUM TUBEROSUM; SOLANACEAE; PROTON LEAKAGE;

D O I：

10.1016/0031-9422(95)00540-N

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：

Rishitin, a known potato phytoalexin, was tested for its effects on proton transport. Like the pterocarpan phytoalexins, glyceollin and phaseollin, rishitin was found to inhibit proton transport. At 100 mu M rishitin, proton transport in potato tonoplast vesicles was inhibited by > 95%. This inhibition appears to be due to an increase in proton conductance and not to inhibition of the tonoplast ATPase. Potato vacuoles were also shown to have increased proton leakage in the presence of rishitin.

引用

页码：1655 / 1658

页数：4

共 14 条

[1]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[2]

Deverall B. J., 1982, Phytoalexins., P1

[3] PHYTOALEXINS - WARDING-OFF COMPOUNDS IN PLANTS [J].