STUDIES ON PLANT GROWTH-REGULATING SUBSTANCES XI. AUXIN ANTAGONISM IN RELATION TO A THEORY ON MODE OF ACTION OF ARYL- AND ARYLOXY-ALKANECARBOXYLIC ACIDS

被引：21

作者：

Wain, R. L. ^{[1
]}

Wightman, F. ^{[1
]}

机构：

[1] Univ London, Wye Coll, Agr Res Council Unit Plant Growth Subst & Syst Fu, London WC1E 7HU, England

来源：

ANNALS OF APPLIED BIOLOGY | 1957年 / 45卷 / 01期

关键词：

D O I：

10.1111/j.1744-7348.1957.tb00450.x

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

A study has been made of the antagonistic effects of a range of phenoxy and other acids on the growth-promoting activity of a number of auxins as assessed by the Avena cylinder and pea curvature tests. The compounds examined as inhibitors were selected on a logical basis, these molecules not possessing the structural requirements considered necessary for growth-regulating activity, yet possessing groupings which might allow them to accumulate at a site of action from which the growth response by auxins might be initiated. Our previous demonstrations that inactive stereoisomers of alpha-aryloxy propionic acids can competitively inhibit the activity of their active enantiomorph has been confirmed and a similar antagonism has been found to operate with other inactive aryloxy acids. Such competitive antagonism is discussed in relation to a 'three-point' contact theory on mode of action.

引用

页码：140 / 157

页数：19

共 34 条

[1] THE INTERACTION OF SOME AUXIN ANTAGONISTS AND 2,4-D IN ROOT GROWTH [J].