Abstract
In the present study Allium cepa root tip was used to evaluatethe cytoxicity of different concentrations of green synthesis silver nanoparticles (AgNPs). For this the root tips were treated with different concentrations of AgNPs(0.0, 5, 10, 20 and 40mg/L). The percentage mitotic index was found to be significantly decreased as theconcentration of the AgNPsincreased except in 5mg/L concentration, where the mitotic index is higher thancontrol. The chromosomal abnormalities were also studied.AgNPs induced a wide range of mitotic disturbances in the Allium root tips when compared to control. According to present findings 5mg/L of the AgNPs was found to enhance the rate of cell division when compare to control on the contrary higher of theAgNPs showed negative effects on mitotic division in root tip cells of onion. Changes in protein profile in root samples were interrelated. Keywords:Nanoparticles;Cytoxicity; Mitotic Index; Chromosomal Abnormalities; Protein Profile
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