Induction of sister chromatid exchanges by heavy metal salts in root meristem cells ofAllium cepa L. |
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| Authors: | K K Panda J Patra B B Panda |
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| Institution: | (1) Genetic Toxicology Laboratory, Department of Botany, Berhampur University, Berhampur760007 Orissa, India |
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| Abstract: | Four heavy metal salts, nickel sulphate, mercuric chloride, cadmium sulphate and zinc sulphate, were tested for induction
of sister chromatid exchange (SCE) in root meristem cells ofAllium cepa. A simple modified Feulgen staining procedure was employed for SCE-analysis. Maleic hydrazide and paraquat were included
for comparison. An evaluation of genotoxicity of the above test chemicals made on the basis of SCE-assay was found positive
for all the test chemicals with exception of zinc sulphate which gave a weak positive result. |
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| Keywords: | cadmium chemical mutagens dose-response maleic hydrazide mercury nickel onion paraquat zinc |
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