STUDIES ON PLANT GROWTH-REGULATING SUBSTANCES VIII. THE GROWTH-PROMOTING ACTIVITY OF CERTAIN ARYLOXY- AND ARYLTHIO-ALKANECARBOXYLIC ACIDS

被引：57

作者：

Fawcett, C. H. ^{[1
]}

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

Wightman, F. ^{[1
]}

机构：

[1] Univ London Wye Coll, Agr Res Council Unit Plant Growth Subst & Syst Fu, Ashford TN25 5AH, Kent, England

来源：

ANNALS OF APPLIED BIOLOGY | 1955年 / 43卷 / 03期

关键词：

D O I：

10.1111/j.1744-7348.1955.tb02485.x

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Fifteen series of aryloxyacetic, alpha-aryloxy-propionic, -butyric and -isobutyric acids and the corresponding arylthio-analogues have been synthesized and their growth-regulating activity has been assessed in the tomato-leaf epinasty, wheat cylinder and the pea curvature tests. It is shown that in general arylthio-derivatives are less active than their aryloxy-analogues. Although for a cell elongation response the presence in the molecule of an alpha-hydrogen atom is usually necessary, three exceptions to this generalization have now been found. A lower activity in the 3:5-dichloro- compared with the 2:6-dichloro-compounds has been demonstrated. Evidence is presented to show that an ortho hydrogen atom in the nucleus is not an essential requirement for cell elongating activity as is postulated by other workers.

引用

页码：342 / U210

页数：14

共 25 条

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