赤霉素对不定根发育的调控作用研究

来源 :2013全国植物生物学大会 | 被引量 : 0次 | 上传用户:luming123
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  最近的研究表明,赤霉素在植物根的伸长过程中具有重要的调控作用,然而对于其在不定根诱导与根的径向发育过程中的调控作用却尚未探明。本研究以模式植物烟草为对象,通过外源施用GA3与赤霉素生物合成抑制剂PAC及转基因技术获得的由35S组成型启动子、LMX5茎部形成层特异表达型启动子及TobRB7根尖特异表达型启动子分别启动表达的PtGA20ox、PtGA2ox1等组成型或组织特异型赤霉素代谢调控转基因株系,系统研究了赤霉素在烟草茎段不定根发生与径向生长中的调控作用。
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