Title |
Dynamic compartment specific changes in glutathione and ascorbate levels in Arabidopsis plants exposed to different light intensities
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Published in |
BMC Plant Biology, July 2013
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DOI | 10.1186/1471-2229-13-104 |
Pubmed ID | |
Authors |
Elmien Heyneke, Nora Luschin-Ebengreuth, Iztok Krajcer, Volker Wolkinger, Maria Müller, Bernd Zechmann |
Abstract |
Excess light conditions induce the generation of reactive oxygen species (ROS) directly in the chloroplasts but also cause an accumulation and production of ROS in peroxisomes, cytosol and vacuoles. Antioxidants such as ascorbate and glutathione occur in all cell compartments where they detoxify ROS. In this study compartment specific changes in antioxidant levels and related enzymes were monitored among Arabidopsis wildtype plants and ascorbate and glutathione deficient mutants (vtc2-1 and pad2-1, respectively) exposed to different light intensities (50, 150 which was considered as control condition, 300, 700 and 1,500 mumol m-2 s-1) for 4 h and 14 d. |
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Unspecified | 1 | 1% |
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