Effects of Copper on Root Growth, Cell Division, and Nucleolus of Zea Mays |
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| Authors: | W Jiang D Liu X Liu |
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| Institution: | (1) Library, Tianjin Normal University, Tianjin, 300074, P.R. China;(2) Department of Biology, College of Chemistry and Life Sciences, Tianjin Normal University, Tianjin, 300074, P.R. China |
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| Abstract: | The effects of different concentrations (10–5 – 10–2 M) of copper sulfate on root growth, cell division and nucleoli in root tip cells of Zea mays L. were investigated. 10–5 M Cu stimulated root growth, but at higher concentrations (10–4 – 10–2 M) inhibited it. Cu had toxic effects on chromosomal morphology: c-mitosis, anaphase bridges, and chromosome stickiness were induced. Some nuclei had irregular shape and particles extruded from nucleoli to nuclei and finally from the nuclei into the cytoplasm. |
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| Keywords: | chromosomal morphology maize mitosis nucleus |
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