植物根系向地性感应的分子机理与养分吸收

被引：15

作者：

石江华

廖红

严小龙

机构：

[1] 华南农业大学植物营养生理与遗传研究室

[2] 根系生物学研究中心

来源：

植物学通报 | 2005年 / 05期

关键词：

根向地性; 重力感应; 信号转导; 生长素; 养分吸收;

D O I：

暂无

中图分类号：

Q945.7 [感应性与植物运动];

学科分类号：

摘要：

植物根系向地性是决定根系空间生长趋势的主要因素之一,对于养分吸收具有重要影响。认识根系向地性感应和根系生长变化的分子机理及其与养分吸收的关系,可为遗传改良根系性状、提高植物养分吸收效率提供理论依据。本文从重力感应、信号转导和生长素非对称分布等方面总结了植物根系向地性感应的分子机理,探讨了根系在养分胁迫下(特别是磷胁迫下)向地性变化的生理基础及其与养分吸收(特别是磷吸收)的关系,最后对根系向地性研究的若干问题进行了展望。

引用

页码：13 / 21

页数：9

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