Chapter 3: Programmed Cell Death in Plants

Programmed cell death (PCD), the highly regulated dismantling of cells, is essential for plant growth and survival. PCD plays key roles in embryo development, formation and maturation of many cell types and tissues, and plant reaction/adaptation to environmental conditions. Reactive oxygen species (...

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Bibliographic Details
Published inInternational Review of Cell and Molecular Biology Vol. 270; pp. 87 - 144
Main Authors Gadjev, Ilya, Stone, Julie M., Gechev, Tsanko S.
Format Book Chapter
LanguageEnglish
Published Elsevier Science & Technology 2008
Subjects
Antioxidants
Cell signaling
Hydrogen peroxide
Plant development
Programmed cell death
Reactive oxygen species
Stress responses
Antioxidants
Reactive oxygen species
Hydrogen peroxide
Stress responses
Programmed cell death
Plant development
Cell signaling
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Summary:Programmed cell death (PCD), the highly regulated dismantling of cells, is essential for plant growth and survival. PCD plays key roles in embryo development, formation and maturation of many cell types and tissues, and plant reaction/adaptation to environmental conditions. Reactive oxygen species (ROS) are not only toxic by products of aerobic metabolism with strictly controlled cellular levels, but they also function as signaling agents regulating many biological processes and producing pleiotropic effects. Over the last decade, ROS have become recognized as important modulators of plant PCD. Molecular genetic approaches using plant mutants and transcriptome studies related to ROS‐mediated PCD have revealed a wide array of plant‐specific cell death regulators and have contributed to unraveling the elaborate redox signaling network. This review summarizes the biological processes, in which plant PCD participates and discusses the signaling functions of ROS with emphasis on hydrogen peroxide.
ISBN:0123745837
9780123745835
ISSN:1937-6448
DOI:10.1016/S1937-6448(08)01403-2