Axillary bud outgrowth: sending a message

被引：123
作者：
Beveridge, CA [1 ]
机构：
[1] Univ Queensland, ARC Ctr Excellence Integrat Legume Res, Brisbane, Qld 4072, Australia
来源：
CURRENT OPINION IN PLANT BIOLOGY | 2006年 / 9卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1016/j.pbi.2005.11.006
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Mutants that branch profusely in the presence of a growing shoot tip have highlighted the role of graft-transmissible signals that are produced in roots and stem. Orthologous genes in Arabidopsis, pea and petunia are involved in the transmission of a novel long-distance message. These genes show varying degrees of regulation by auxin and an auxin-independent feedback system, and encode enzymes that might act on carotenoid-like substrates. Axillary bud outgrowth is under homeostatic control, involving developmental stages or checkpoints. Perturbation of the long-range messaging and auxin depletion does not guarantee that bud outgrowth will ensue at a particular node.
引用
收藏
页码：35 / 40
页数：6
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