IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Transgenic Tobacco Over expressing Cytosolic Superoxide Dismutase Exhibit Enhanced Tolerance To UV-B Stress.


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International Journal for Innovative Research in Science & Technology
Volume 2 Issue - 8
Year of Publication : 2016
Authors : Neelam Prabha Negi ; Prof. Vinay Sharma; Prof. Neera Bhalla Sarin

BibTeX:

@article{IJIRSTV2I8045,
     title={Transgenic Tobacco Over expressing Cytosolic Superoxide Dismutase Exhibit Enhanced Tolerance To UV-B Stress.},
     author={Neelam Prabha Negi, Prof. Vinay Sharma and Prof. Neera Bhalla Sarin},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={8},
     pages={86--90},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I8045.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Abstract:

Stress leads to generation of reactive oxygen species (ROS) in living cells, which are scavenged by antioxidant enzymes. Effect of UV-B stress on transgenic tobacco (Nicotiana tabacum cv. Xanthi) overexpressing cytosolic superoxide dismutase (AhCuZnSOD) and untransformed control plants were compared. Transgenic tobacco plants exhibited higher levels of total antioxidant enzyme activities, lower level of malonyldialdehyde content and hydrogen peroxide accumulation under stress conditions in comparison to the untransformed control (UC) plants. Our analysis revealed that antioxidant enzyme leads to increase in the total activity of the antioxidant ezymes and thus improve UV stress tolerance in transgenic plants.


Keywords:

superoxide dismutase, antioxidant enzymes, UV stress, tobacco
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