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Effects of cadmium on root growth, cell division and nucleoli in root tip cells of garlic



Effects of cadmium on root growth, cell division and nucleoli in root tip cells of garlic



Biologia Plantarum (Prague) 47(1): 79-83, 2003-



The effects of different concentrations (10-7 to 10-2 M) of cadmium chloride on root growth, cell division and nucleoli in root tip cells of Allium sativum L. were investigated. At lower concentrations of Cd2+ (10-7 to 10-6 M), Cd2+ did not influence the root growth, even had a stimulation effects during a short treatment. The results showed that the rate of root growth per day at the treatment groups (10-4 to 10-2 M Cd2+) decreased with increasing duration of the treatment and increasing Cd2+ concentration. Cd2+ induced c-mitosis, anaphase bridges, chromosome stickiness and on nucleoli, causing some particles of similar silver-stained material scattered in the nuclei and making the silver staining reaction at the periphery of the nucleolus weaker.

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Accession: 034815956

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