目录摘要：..................................................................................................................................................1关键词：..............................................................................................................................................1引言......................................................................................................................................................11叶片衰老过程...................................................................................................................................22叶片衰老的细胞结构和生理功能的的变化....................................................................................22.1细胞结构的变化....................................................................................................................32.2细胞代谢的变化....................................................................................................................34植物激素参与叶片衰老的调节........................................................................................................45叶片衰老的分子机制.......................................................................................................................55.1与蛋白降解相关的基因........................................................................................................65.2与核酸降解相关的基因........................................................................................................65.3与叶绿素分解相关的基因.....................................................................................................75.4脂类再转移基因....................................................................................................................75.5与氮转移相关的基因............................................................................................................75.6未知功能的于衰老相关的基因.............................................................................................86展望...................................................................................................................................................8参考文献：..........................................................................................................................................9植物叶片衰老的机理与调控研究进展摘要：叶片衰老是植物发育后期的一个重要特征。在生产上当植物叶片衰老或是异常时，光合作用减退，将极大程度地限制植物产量潜力的发挥，农业生产中造成许多作物减产。本文结合植物叶片衰老发育的过程，从叶片衰老过程中各个组织水平细胞结构变化、细胞生理生化变化、植物激素以及基因调控等方面对叶片衰老的机理进行综述，并提出今后研究的方向。关键词：叶片衰老；机理；调控；研究进展ResearchProgressonMechanismandRegulationofPlantLeafSenescenceAbstrct：Plantleafsenescenceisanimportantcharacteristicatthelatestageofplantdevelopment.Incropproduction,abnormalleafsenescencecandirectlyaffectPhotosyntheticEfficiency,thusinfluencethecropyield.Combiningtheplantleafsenescenceprogress,thispapersummarizesthemechanismofPlantleafsenescencefromeachantherorganizationalstructure,celldifferentiation,planthormonesandgeneregulation,andputsforwarddirectionsforfuturestudy.KeyWords：LeafSenescence；Mechanism；Regulation；ResearchProgress引言叶片衰老（Senescence）是指在正常的环境条件下，植物体...
VIP
