Morphotoxicity and cytogenotoxicity of pendimethalin in the test plant Allium cepa L. - A biomarker based study

Chemosphere
Sonam Verma, Alka Srivastava

Abstract

Pesticides have brought tremendous benefits to mankind by increasing food production and controlling various crop diseases. But their prolonged and extensive use has been reported to induce toxicity. Biological markers used for the evaluation of toxic effects of pesticides have increased these days. The aim of this study was to determine the morphotoxic and cytogenotoxic effects of pesticide pendimethalin applied to the soil by using morphological and genotoxic biomarkers in the test plant Allium cepa L. A pot experiment was set up in which pendimethalin was added to soil at the rate of 0, 0.033, 0.044, 0.055 and 0.066 g kg-1 soil. Similar sized onion bulbs were planted in each pot and 3 replicates were maintained for each dose of pendimethalin at 1, 7, 15, 30 and 45 days after treatment. Average root number (ARN) and average length of roots (ALR) of onion bulbs were recorded and on the day 3 of sowing roots were harvested and fixed for cytological analysis. Morphological biomarkers revealed significant concentration and duration dependent inhibition of ARN and ALR as compared to control which shows the morphotoxicity of pendimethalin. The results also showed inhibitory effect on the mitotic index (%) of A. cepa while relative ...Continue Reading

Citations

Aug 14, 2019·Ecotoxicology and Environmental Safety·Seir Antonio Salazar Mercado, Hanner Alejandra Maldonado Bayona
Jan 21, 2021·Environmental Monitoring and Assessment·Adiba KhanPraveen C Verma
Nov 8, 2020·Journal of Hazardous Materials·Annadurai Sakthi ThesaiPudukadu Munusamy Ayyasamy
Feb 23, 2020·Chemosphere·Seir Antonio Salazar MercadoJhan Piero Rojas Suárez
Sep 22, 2020·Heliyon·Seir Antonio Salazar Mercado, Jesús David Quintero Caleño
May 13, 2021·Environmental Science and Pollution Research International·Seir Antonio Salazar Mercado, Jesús David Quintero Caleño

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