Effect of pretreatment with 28 nM wheat germ agglutinin (WGA) on cell divisions in the root apical meristem of 4-day-old seedlings of wheat (Triticum aestivum L.), distribution of cells among mitotic phases, cadmium-induced disruptions of normal progression through mitosis, and activity of nucleolar organizer regions (NOR) of the chromosomes was studied after 7-h-long exposure to 1 mM cadmium acetate. Pretreatment with WGA has a pronounced protective effect on divisions of root meristem cells exposed to cadmium. Progression of the cells through mitotic phases was normalized, abnormal mitoses became much less numerous, and the share of binuclear cells decreased. Activity of NOR remained at the control level that much depended on the ability of WGA to prevent reduction in cytokinin content under cadmium stress.
Russian Journal of Plant Physiology – Springer Journals
Published: May 13, 2016
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