Mediators, Genes and Signaling in Adventitious Rooting

被引:0
|
作者
Shi-Weng Li
Lingui Xue
Shijian Xu
Huyuan Feng
Lizhe An
机构
[1] Lanzhou Jiaotong University,School of Chemical and Biological Engineering
[2] Lanzhou University,School of Life Sciences
来源
The Botanical Review | 2009年 / 75卷
关键词
Adventitious Roots; Auxin; Signaling; Genes;
D O I
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中图分类号
学科分类号
摘要
Adventitious roots are a post-embryonic root which arise from the stem and leaves and from non-pericycle tissues in old roots and it is one of the most important ways of vegetative propagation in plants. Many exogenous and endogenous factors regulate the formation of adventitious roots, such as Ca2+, sugars, auxin, polyamines, ethylene, nitric oxide, hydrogen peroxide, carbon monoxide, cGMP, MAPKs and peroxidase, etc. These mediators are thought to function as signaling and mediate auxin signal transduction during the formation of adventitious roots. To date, only a few genes have been identified that are associated with the general process of adventitious rooting, such as ARL1, VvPRP1, VvPRP2, HRGPnt3, LRP1 and RML, etc. Auxin has been shown to be intimately involved in the process of adventitious rooting and function as crucial role in adventitious rooting. Great progress has been made in elucidating the auxin-induced genes and auxin signaling pathway, especially in auxin response Aux/IAA and ARF genes family and the auxin receptor TIR1. Although, some of important aspects of adventitious rooting signaling have been revealed, the intricate signaling network remains poorly understood.
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页码:230 / 247
页数:17
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