Axillary bud outgrowth: sending a message

被引：124

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

页码：35 / 40

页数：6

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