Wang QL, DH Liu, JY Yue
Phyton-International Journal of Experimental Botany, Vol.85, pp. 155-161, 2016, DOI:10.32604/phyton.2016.85.155
Abstract Allium cepa var. agrogarum L. seedlings are sensitive to Cd stress. We used fluorescence imaging to indicate that Cd2+ was localized in cytoplasm in the epidermis of the basal parts of root and vascular tissues after Cd treatment. The nucleoli and the cell walls were the first storage sites of Cd2+. When Cd exposure was prolonged, severe irregularly-shaped nuclei were induced. We used silver nitrate staining to analyze the effects of different concentrations (1–300 μM) of cadmium chloride on chromosome, nucleolus and nucleolus organizer regions (NORs) in root tip cells. Cd2+ induced c-mitosis, chromosome bridges, chromosome stickiness and micronuclei. More… More >
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