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Reactive oxygen species in plant cell death - PubMed

Reactive oxygen species in plant cell death

Frank Van Breusegem et al. Plant Physiol. 2006 Jun.

No abstract available

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Figures

Figure 1.
Figure 1.

Schematic representation of ROS-dependent cell death pathways. Environmental and developmental changes stimulate the production of ROS through various organelles and enzymes. This initial increase in ROS levels may be further enhanced by various relay and production centers. Sustained ROS production provokes the accumulation of phytotoxic levels of ROS leading to necrotic cell death. Transient increases may initiate signal transduction cascades involving cross talk with other phytohormones, SA, jasmonate, ethylene, and NO. This cross talk can amplify or diminish the ensuing response or channel the cascade through more specific transducer sensors and targets toward ROS-dependent and cell death-related gene expression. Besides MAPK-driven phosphorylation cascades, other regulatory posttranslational modifications, such as protein oxidation and nitrosylation might be involved in ROS-dependent cell death pathways. ETH, Ethylene; exe1, executer1; JA, jasmonic acid.

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