INITIAL TRANSIENT GROWTH-INHIBITION IN MAIZE COLEOPTILES FOLLOWING AUXIN APPLICATION

被引：14

作者：

FISCHER, C ^{[1
]}

LUTHEN, H ^{[1
]}

BOTTGER, M ^{[1
]}

HERTEL, R ^{[1
]}

机构：

[1] UNIV HAMBURG,INST ALLGEMEINE BOT,W-2000 HAMBURG 52,GERMANY

来源：

JOURNAL OF PLANT PHYSIOLOGY | 1993年 / 141卷 / 01期

关键词：

ZEA; AUXIN EFFECT; COLEOPTILE; ELONGATION; SPECIFICITY;

D O I：

10.1016/S0176-1617(11)80856-4

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Coleoptile segments from Zea mays L. were equilibrated in a pH 4.5 buffer that induces a moderate steady state elongation. Adding 10 muM 3-indoleacetic acid caused a significant transient inhibition of elongation rate before <<normal>> growth stimulation occurred after 17 min. This initial negative response was specific: it was not seen with 50 muM benzoic acid, while the auxins 1-naphthylacetic acid and 4-Cl-indoleacetic acid provoked a transient response similar to indoleacetic acid. 2,4-dichlorophenoxyacetic acid did not induce an initial growth inhibition.

引用

页码：88 / 92

页数：5

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