Antioxidative responses and expression of insecticidal proteins in Bt cotton under high irradiance
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2011, Vol 7, Issue 3
Abstract
Effect of high irradiance (HI) on the activity of antioxidant enzymes, rate of lipid peroxidation and hydrogen peroxide accumulation were investigated in non Bt and Bt cotton. The accumulation of malondialdehyde (MDA) and H[sub]2[/sub]O[sub]2[/sub] was higher in Bt cotton. Sustained cultivation of Bt cotton requires stable transgene expression under HI stress. In the present study, Bt toxin proteins ([i]Cry[/i]1Ac and [i]Cry[/i]2Ab), which are essential for the control of lepidopteron pests, were found to be reduced in Bt cotton under HI stress.
Authors and Affiliations
P. Parimala , K. Muthuchelian
Keywords
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