Interactions between plant hormones regulate submergence-induced shoot elongation in the flooding-tolerant dicot Rumex palustris

被引：154

作者：

Voesenek, LACJ ^{[1
]}

Benschop, JJ ^{[1
]}

Bou, J ^{[1
]}

Cox, MCH ^{[1
]}

Groeneveld, HW ^{[1
]}

Millenaar, FF ^{[1
]}

Vreeburg, RAM ^{[1
]}

Peeters, AJM ^{[1
]}

机构：

[1] Univ Utrecht, NL-3584 CA Utrecht, Netherlands

来源：

ANNALS OF BOTANY | 2003年 / 91卷 / 02期

关键词：

review; Rumex palustris Sm; ethylene; auxin; gibberellins; abscisic acid; submergence; cell walls; expansins;

D O I：

10.1093/aob/mcf116

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Rumex palustris has the capacity to respond to complete submergence with hyponastic (upward) growth and stimulated elongation of petioles. These adaptive responses allow survival of this plant in habitats with sustained high water levels by re-establishing contact with the aerial environment. Accumulated ethylene in submerged petioles interacts with ethylene receptor proteins and operates as a reliable sensor for the under-water environment. Further downstream in the transduction pathway, a fast and substantial decrease of the endogenous abscisic acid concentration and a certain threshold level of endogenous auxin and gibberellin are required for hyponastic growth and petiole elongation. Interactions of these plant hormones results in a significant increase of the in vitro cell wall extensibility in submerged petioles. Furthermore, the pattern of transcript accumulation of a R. palustris alpha-expansin gene correlated with the pattern of petiole elongation upon submergence. (C) 2003 Annals of Botany Company.

引用

页码：205 / 211

页数：7

共 46 条

[1] Ethylene biosynthesis and accumulation under drained and submerged conditions - A comparative study of two Rumex species [J].