EFFECT OF GIBBERELLIN ON TRYPTOPHAN CONVERSION AND ELONGATION OF AVENA COLEOPTILE

被引：13

作者：

VALDOVINOS, JG

SASTRY, KSS

机构：

[1] Department of Biology, Wayne State University, Detroit, Michigan

来源：

PHYSIOLOGIA PLANTARUM | 1968年 / 21卷 / 06期

关键词：

D O I：

10.1111/j.1399-3054.1968.tb07359.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Gibberellic acid (GA3) enhanced directly the release of 14CO2 from tryptophan‐1‐l4C by cell free preparations of Avena coleoptile tips. The rate of tryptophan metabolism in the presence of GA3 was increased by approximately 100 per cent. The addition of auxin synthesis inhibitors to incubation flasks nullified the enhancement effect of GA3 on elongation of the coleoptile tips. These studies implicate tryptamine as an intermediate in the formation of auxin from tryptophan. The possibility of GA3‐IAA interaction in the elongation processes was also investigated. Combination treatments of these growth‐promoting substances did not induce a synergistic growth response by the coleoptile tissue. Copyright © 1968, Wiley Blackwell. All rights reserved

引用

页码：1280 / +

页数：1

共 17 条

[1] OXIDATION OF TRYPTAMINE TO 3-INDOLYLACETALDEHYDE BY PLANT AMINE OXIDASE [J].