Oxidative processes and content of low molecular weight antioxidants in green winter wheat (Triticum aestivum) seedlings under waterlogging | Окислительные процессы и содержание низкомолекулярных антиоксидантов в зеленых проростках пшеницы (Triticum aestivum) при оводнении
2012
Shalygo, N.V., Belarus State Univ., Minsk (Belarus) | Domanskaya,I.N. | Radyuk, M.S. | Shcherbakov, R.A., National Academy of Sciences, Minsk (Belarus). Institute of Biophysics and Cell Engineering
The influence of waterlogging on reactive oxygen species (ROS) generation and low-molecular antioxidants content was investigated in green winter wheat (Triticum aestivum L.) seedlings of Karavai variety in the conditions of the Republic of Belarus. In course of the study there were presented data on influence of waterlogging (3 days) on the length of the first leaf and roots of plant germs of winter wheat. Under waterlogging ROS overproduction was followed with ROS level of reduction during recovery period. The significant rise in glutathione (GSH) and phenolic compounds (PC) content was also detected under stress conditions. Under recovery the amount of GSH and PC decreased though remaining higher as against control level. Waterlogging implicated the increase in total and reduced ascorbate contents accompanied by further slow decline under stress conditions as well as under recovery. Nevertheless during the time of experiment levels of total and reduced ascorbate were several folds higher as compared to control variants indicating the important role of ascorbate in wheat seedling adaptation to waterlogging and its consequences.
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