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植物细胞程序死亡的机理及其与发育的关系
引用本文:崔克明.植物细胞程序死亡的机理及其与发育的关系[J].植物学通报,2000,17(2):97-107.
作者姓名:崔克明
作者单位:北京大学生命科学学院!北京100871
基金项目:国家自然科学基金!(No.3 9770 0 4 8),高等学校博士学科点专项科研基金!(No.970 0 0 1 0 6)资助项目
摘    要:细胞程序死亡(PCD)是在植物体发育过程中普遍存在的,在发育的特定阶段发生的自然的细胞死亡过程,这一死亡过程是由某些特定基因编码的“死亡程序”控制的。PCD的细胞分化的最后阶段。细胞分化的临界期就牌死亡程序执行中的某个阶段。PCD包含启动期和清除期三个阶段,其间CASPASE家族起着重要作用。PCD在细胞和组织的平衡、特化,以及组织分化、器官建成和对病原体的反应等植物发育过程中起着重要作用。PCD

关 键 词:植物发育  细胞程序死亡  细胞分化

Mechanisms of Programmed Cell Death and Its Relation to Development in Plants
CUI Ke,Ming.Mechanisms of Programmed Cell Death and Its Relation to Development in Plants[J].Chinese Bulletin of Botany,2000,17(2):97-107.
Authors:CUI Ke  Ming
Abstract:Programmed cell death (PCD) is a natural cell death process controled by "death programme" coded by certain genes, occurring at certain stages of development, and commonly present in the process of plant development. PCD is the last stage of cell differentiation. The critical phase of cell differentiation occurs when the death programme is being run. PCD comprises of initiation, effector and degradation, during which the caspase family plays the key role. PCD is important in processes of plant development such as cell and tissue homeostasis and specialization, tissue differentiation and organ sculpting, and reactions to pathogens. The timing of morphological and biochemical changes are ordered during PCD. Some features of PCD in plants, including the changes in cell morphology and DNA degradation, are similar to those in animals. But PCD in plants is different from that in animals in that the products from PCD in plants can either be phagocytosed by other cells or used for constructing the cell's own secondary wall.
Keywords:Plant development  Programmed cell death (PCD)  Cell differentiation
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