Int. J. Mol. Sci. 2012, 13(4), 4458-4483; doi:10.3390/ijms13044458
Review

The Ascorbate-glutathione-α-tocopherol Triad in Abiotic Stress Response

Received: 25 February 2012; in revised form: 22 March 2012 / Accepted: 26 March 2012 / Published: 10 April 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The life of any living organism can be defined as a hurdle due to different kind of stresses. As with all living organisms, plants are exposed to various abiotic stresses, such as drought, salinity, extreme temperatures and chemical toxicity. These primary stresses are often interconnected, and lead to the overproduction of reactive oxygen species (ROS) in plants, which are highly reactive and toxic and cause damage to proteins, lipids, carbohydrates and DNA, which ultimately results in oxidative stress. Stress-induced ROS accumulation is counteracted by enzymatic antioxidant systems and non-enzymatic low molecular weight metabolites, such as ascorbate, glutathione and α-tocopherol. The above mentioned low molecular weight antioxidants are also capable of chelating metal ions, reducing thus their catalytic activity to form ROS and also scavenge them. Hence, in plant cells, this triad of low molecular weight antioxidants (ascorbate, glutathione and α-tocopherol) form an important part of abiotic stress response. In this work we are presenting a review of abiotic stress responses connected to these antioxidants.
Keywords: abiotic stress; oxidative stress; α-tocopherol; ascorbate; glutathione
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MDPI and ACS Style

Szarka, A.; Tomasskovics, B.; Bánhegyi, G. The Ascorbate-glutathione-α-tocopherol Triad in Abiotic Stress Response. Int. J. Mol. Sci. 2012, 13, 4458-4483.

AMA Style

Szarka A, Tomasskovics B, Bánhegyi G. The Ascorbate-glutathione-α-tocopherol Triad in Abiotic Stress Response. International Journal of Molecular Sciences. 2012; 13(4):4458-4483.

Chicago/Turabian Style

Szarka, András; Tomasskovics, Bálint; Bánhegyi, Gábor. 2012. "The Ascorbate-glutathione-α-tocopherol Triad in Abiotic Stress Response." Int. J. Mol. Sci. 13, no. 4: 4458-4483.

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