Genotoxic Effects of Some Organophosphorus Pesticides III
In vivo chromosomal aberration bioassay in root meristems of Allium and Hordeum
1988 Volume 53 Issue 1 Pages 181-191
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1988 Volume 53 Issue 1 Pages 181-191
The genotoxic effects of three organophosphorus pesticides viz. ekatin, fenitrothion, phorate and MNNG (N-methyl-N'-nitro-N-nitrosoguanidine) employing in vivo chromosomal aberration bioassay in root meristems of Allium and Hordeum have been investigated. Both physiological type aberrations like C-mitosis, despiralization, lagging chromosomes, multipolar cells as well as clastogenic effects like chromosome breaks, ring chromosome, chromatin bridges and micronuclei were induced by these pesticides. The order of radiomimetic potential was found to be phorate>fenitrothion>ekatin. The root meristem of Allium cepa was found to be more sensitive.
