Auxin-cytokinin interactions in the control of shoot branching
Auxin-cytokinin interactions in the control of shoot branching
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DOI：
10.1007/s11103-008-9416-3
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发表时间：
2009-03-01
影响因子：
5.1
通讯作者：
Mori, Hitoshi
中科院分区：
文献类型：
--
作者：
Shimizu-Sato, Sae;Tanaka, Mina;Mori, Hitoshi
在许多植物物种中，完整的主茎顶端占优势，腋芽生长受到抑制。这种现象被称为顶端优势，已经分析了70多年。茎尖的去头使腋芽从休眠中释放出来，它们开始长出来。生长素来源于一个完整的茎尖抑制腋芽生长，而诱导的细胞分裂素诱导的茎尖去顶刺激腋芽生长。在这里，我们描述了生长素和细胞分裂素之间的相互作用的分子机制，在控制芽分支。
In many plant species, the intact main shoot apex grows predominantly and axillary bud outgrowth is inhibited. This phenomenon is called apical dominance, and has been analyzed for over 70 years. Decapitation of the shoot apex releases the axillary buds from their dormancy and they begin to grow out. Auxin derived from an intact shoot apex suppresses axillary bud outgrowth, whereas cytokinin induced by decapitation of the shoot apex stimulates axillary bud outgrowth. Here we describe the molecular mechanisms of the interactions between auxin and cytokinin in the control of shoot branching.