多细胞生物
程序性细胞死亡
细胞生物学
效应器
生物
非生物成分
信号转导
细胞
细胞凋亡
生态学
遗传学
作者
Vittoria Locato,Laura De Gara
出处
期刊:Methods in molecular biology
日期:2018-01-01
卷期号:: 1-8
被引量:107
标识
DOI:10.1007/978-1-4939-7668-3_1
摘要
Programmed cell death (PCD) is a controlled mechanism that eliminates specific cells under developmental or environmental stimuli. All organisms—from bacteria to multicellular eukaryotes—have the ability to induce PCD in selected cells. Although this process was first identified in plants, the interest in deciphering the signaling pathways leading to PCD strongly increased when evidence came to light that PCD may be involved in several human diseases. In plants, PCD activation ensures the correct occurrence of growth and developmental processes, among which embryogenesis and differentiation of tracheary elements. PCD is also part of the defense responses activated by plants against environmental stresses, both abiotic and biotic. This chapter gives an overview of the roles of PCD in plants as well as the problems arising in classifying different kinds of PCD according to defined biochemical and cellular markers, and in comparison with the various types of PCD occurring in mammal cells. The importance of understanding PCD signaling pathways, with their elicitors and effectors, in order to improve plant productivity and resistance to environmental stresses is also taken into consideration.
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