Shoot and inflorescence branching.
Shoot and inflorescence branching.
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DOI：
10.1016/j.pbi.2005.07.010
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发表时间：
2005-10
影响因子：
9.5
通讯作者：
G. Schmitz;K. Theres
中科院分区：
文献类型：
--
作者：
G. Schmitz;K. Theres
胚后植物发育的一个主要方面是形成次生轴：营养枝、花序枝或花。侧枝发育的第一步是在叶腋处建立侧生分生组织。GRAS-、MYB-和bHLH型转录因子在这一过程的早期阶段起着关键的调节作用。HD-ZIP转录因子的REVOLUTA亚家族控制侧生分生组织的组织。虽然侧生分生组织发育成侧芽的研究还很少，但最近的研究为侧芽生长的调控提供了新的见解。拟南芥的腋下生长(Max)基因和豌豆的RAMOSUS(RMS)基因参与了抑制侧芽生长的信号的产生、感知和转导。这种未知激素的合成由主茎尖通过生长素信号正向调节。
A major aspect of postembryonic plant development is the formation of secondary axes of growth: vegetative branches, inflorescence branches, or flowers. The first step in side-shoot development is the establishment of lateral meristems in the axils of leaves. GRAS-, MYB-, and bHLH-type transcription factors act as key regulators of early steps in this process. The REVOLUTA subfamily of HD-ZIP transcription factors controls the organization of lateral meristems. Whereas the development of lateral meristems into lateral buds is only poorly understood, recent studies have provided new insights into the regulation of lateral bud outgrowth. The MORE AXILLARY GROWTH (MAX) genes of Arabidopsis and the RAMOSUS (RMS) genes of pea are involved in the production, perception, and transduction of a signal that inhibits lateral bud outgrowth. Synthesis of this not-yet-identified hormone is positively regulated by the main shoot tip through auxin signalling.