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Published on: April 12, 2017
White clover from the exclusion zone of the Chernobyl NPP: Morphological, biochemical, and genetic characteristics
Ekaterina S Makarenko1, Ekaterina M Shesterikova1, Elizaveta A Kazakova1
1Russian Institute of Radiology and Agroecology, Kievskoe shosse, 109 km, 249032, Obninsk, Russia.
Abstract:
A comprehensive study of the biological effects of chronic radiation exposure (8 μGy/h) in populations of white clover (Trifolium repens L.) from the Chernobyl exclusion zone was carried out. White clover is one of the most important pasture legumes, having many agricultural applications. Studies at two reference and three radioactively contaminated plots showed no stable morphological effects in white clover at this level of radiation exposure. Increased activities of catalase and peroxidases were found in some impacted plots. Auxin concentration was enhanced in the radioactively contaminated plots. Genes involved in the maintenance of water homeostasis and photosynthetic processes (TIP1 and CAB1) were upregulated at radioactively contaminated plots.
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