Comparative Genotoxicity of Herbicide Ingredients Glyphosate and Atrazine on Root Meristem of Buckwheat (Fagopyrum esculentum Moench)
نویسنده
چکیده
Herbicides have been extensively used in agriculture but people have not concerned about its adverse effects on plants and animals. The aim of the present study is to analyze the detrimental effects of two herbicides in Fagopyrum esculentum Moench (Variety: VL-7). The root tips were treated with four concentrations viz. 50, 100, 150 and 200 ppm of glyphosate and atrazine at room temperature for 3 hrs. Mitotic indices and chromosomal anomalies were calculated. It was observed that both the herbicides induced different types of chromosomal abnormalities comprising of scattering, precocious movement, stickiness, bridges, laggard etc. along with the increasing doses of herbicides. Scattering and stickiness are most prevalent abnormalities among others. The effect of glyphosate was more toxic than atrazine in the root meristem of Fagopyrum esculentum.
منابع مشابه
The Site of the Inhibition of the Shikimate Pathway by Glyphosate: II. INTERFERENCE OF GLYPHOSATE WITH CHORISMATE FORMATION IN VIVO AND IN VITRO.
In the presence of the nonselective herbicide glyphosate (N-[phosphonomethyl]glycine), buckwheat (Fagopyrum esculentum Moench) hypocotyls and cultured cells of Galium mollugo L. accumulate an organic acid, which was identified as shikimate by mass-spectroscopy of its methyl ester. After growth in 0.5 millimolar glyphosate for 10 days, G. mollugo cells contained shikimate in amounts of up to 10%...
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