球根植物休眠调控的分子机制研究进展

doi:10.11686/cyxb20130635

摘要/Abstract

摘要： 球根植物的休眠主要是由于DNA活性受抑制引起的,休眠解除过程中涉及多种活性基因的表达及蛋白质的活化过程。目前已从模式植物拟南芥、杨树和马铃薯等植物的研究中了解到内源激素含量及激素间的动态平衡调控着休眠的进程,休眠过程中碳代谢水平发生着变换,淀粉加速降解为球根休眠的解除提供了物质和能量。利用基因工程技术手段能够提前或延迟打破球根的休眠。本文对国内外球根休眠形成及解除的分子机制的研究进展进行了综述,并对这一研究领域的发展作了进一步的讨论。

Abstract: The main factor of dormancy induction in bulbs is the repression of DNA activation. A series of cell genes and proteins are activated during dormancy breaking, Using Arabidopsis, poplar, and potato as model plants it has been found that the systems of endogenous hormone balance and their levels regulate the processes of dormancy, and that carbohydrates are continually transformed in the bulbs. The degradation of starch provides materials and energy. Dormancy characteristics can be delayed or brought forward using genetic engineering. Recent research progress on inducing dormancy and on dormancy breaking in bulbous plants are summarized in this review and the prospects for further research on bulb dormancy are discussed.

中图分类号:

Q945.35

刘芳,王家艳,周蕴薇. 球根植物休眠调控的分子机制研究进展[J]. 草业学报, 2013, 22(6): 295-304.

LIU Fang, WANG Jia-yan, ZHOU Yun-wei. Research progress on molecular regulation mechanisms in bulbous plants at dormancy[J]. Acta Prataculturae Sinica, 2013, 22(6): 295-304.

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