植物中的细胞程序性死亡

细胞程序性死亡（ＰＣＤ）对于维持植物的正常生长发育非常重要，目前已成为植物学研究的一个热点。本文综合评述了近年来植物ＰＣＤ研究的某些进展，包括植物ＰＣＤ的特征，植物的营养生长、生殖生长以及与环境互作过程中存在的各种ＰＣＤ及其证据，植物ＰＣＤ发生的分子机制及其调控等等。对植物ＰＣＤ研究中有待进一步解决的问题和可能意义提出了自己的见解。

PROGRAMMED CELL DEATH IN PLANT

Programmed cell death (PCD) plays an important role in normal growth and development of plants, it presently has become one of hot points of researchs on plants. In this review, we discuss recent studies on the features of PCD in plants including the changes in cell morphology and the processing of DNA, the evidences for PCD during vegetative and reproductive phase of plant development and the interactions of plant with environment, the molecular mechinisms controlling PCD in plants including related signals, related proteins and related genes. We also suggest some questions to be further investigated and possible value of these studies.