NDLI: Sorting out the role of reactive oxygen species during plant programmed cell death induced by ultraviolet-C overexposure

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Sorting out the role of reactive oxygen species during plant programmed cell death induced by ultraviolet-C overexposure

Content Provider	Scilit
Author	Gao, Caiji Zhang, Lingrui Wen, Feng Xing, Da
Copyright Year	2008
Description	Previous studies have reported that light is required for activating Arabidopsis programmed cell death (PCD) induced by ultraviolet-C (UV-C) overexposure, and a caspase-like protease cleaving the caspase-3 substrate Asp-Glu-Val-Asp (DEVDase activity) is induced during this process. Our recent report has suggested that a quick burst of reactive oxygen species (ROS), which is mainly derived from mitochondria and chloroplasts, is induced in a light dependent manner during the early stages of UV-induced plant PCD. Concomitantly, the mitochondria undergo serious dysfunction including the MTP loss and the changes in distribution and mobility, which ultimately lead to apoptotic-cell death. Though some of signaling molecules have been elucidated in this type of plant cell death, the molecular mechanism about UV-induce Arabidopsis PCD is still poorly understood when comparing with the study of signaling pathways involved in animal cell apoptosis induced by UV. By using the Arabidopsis mesophyll protoplasts as a reference model, we have begun to shed light on the complexity of signaling pathway in UV-induced plant PCD. Recently we have tried to real-time detect the presence of caspase-like proteolytic activation, and to sort out the key role of ROS as well as to further assess the relationship between the ROS production and caspase-like activation in this type of plant apoptotic cell death.
Related Links	https://www.tandfonline.com/doi/pdf/10.4161/psb.3.3.5373?needAccess=true https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634115/pdf
Ending Page	198
Page Count	2
Starting Page	197
e-ISSN	15592324
DOI	10.4161/psb.3.3.5373
Journal	Plant signaling & behavior
Issue Number	3
Volume Number	3
Language	English
Publisher	Informa UK Limited
Publisher Date	2008-03-01
Access Restriction	Open
Subject Keyword	Journal: Plant Signaling & Behavior Biochemistry and Molecular Biology Plant Sciences Fret Caspase-like Activation Programmed Cell Death Reactive Oxygen Species Ultraviolet-c
Content Type	Text
Resource Type	Article

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Sorting out the role of reactive oxygen species during plant programmed cell death induced by ultraviolet-C overexposure

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