Abstract
The application of pesticides to get more agricultural products is increasing day by day. The use of a huge amount of pesticides raises public concerns about safety. Tetraconazole is a widely used and successful fungicide. Possible toxic, cytotoxic, and genotoxic effects of different doses of tetraconazole (1.00 mg/L, 5.00 mg/L, and 10.00 mg/L) were evaluated on the meristematic cells of Allium cepa L. root tips by means of physiological, cytogenetic, biochemical, and anatomical parameters. EC50 value for tetraconazole in terms of growth inhibition was calculated as 6.7 mg/L. Increasing doses of tetraconazole resulted in reduced germination ratio, root length, and weight gain. Total activities of superoxide dismutase (SOD) and catalase (CAT) enzymes as well as malondialdehyde (MDA) content were increased as a result of oxidative stress. As an evidence of genotoxicity, mitotic index (MI) level decreased, while scores for micronucleus (MN) and chromosomal aberrations (CAs) rose. In addition, various meristematic cell damages were detected in root tips of tetraconazole applied bulbs. As a result, the multiple toxic, cytotoxic, and genotoxic effects of tetraconazole fungicide were demonstrated through a wide range of parameters on A. cepa, which was found to be a versatile tool for testing hazardous pesticides.
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Dr. Oksal Macar carried out the experimental stages. Dr. Oksal Macar prepared the main manuscript including all figures and tables. Dr. Oksal Macar carried out statistical analysis.
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Macar, O. Multiple toxic effects of tetraconazole in Allium cepa L. meristematic cells. Environ Sci Pollut Res 28, 10092–10099 (2021). https://doi.org/10.1007/s11356-020-11584-4
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DOI: https://doi.org/10.1007/s11356-020-11584-4