A study on genotoxicity of textile dyeing industry effluents from Rajshahi, Bangladesh, by theAllium cepatest
| Autor: | Md. Fazlur Rahman, Md. Mahfuzur Rahman, Khondokar Nasirujjaman |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Pollutant Mitotic index Ecology Aquatic ecosystem 010501 environmental sciences Biology medicine.disease_cause biology.organism_classification 01 natural sciences Toxicology 03 medical and health sciences 030104 developmental biology Toxicity medicine General Earth and Planetary Sciences Allium Dyeing Effluent Ecology Evolution Behavior and Systematics Genotoxicity 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Chemistry and Ecology. 33:434-446 |
| ISSN: | 1029-0370 0275-7540 |
| Popis: | Textile dye effluents are believed to be toxic as they might exert various harmful effects on living organisms including genotoxicity. These effluents are the main source of direct and continuous input of pollutants into the aquatic ecosystems. In this study, dye effluents from a local silk dyeing industry were analysed for their genotoxic potential by the Allium cepa genotoxicity test. The A. cepa test is characterised as a genotoxicity test where the roots of A. cepa are grown in different concentrations of the test material. The macroscopic results clearly showed that the toxicity of the dye effluents prompted A. cepa root growth inhibition, and this effect increased with higher concentrations of the effluents. At the cellular level, no dividing cells were found at higher concentrations such as 60%, 80% and 100% of the effluents. However, at a lower concentration of 20%, dividing cells were identified, although the mitotic index was much lower than that of the control. Microscopic analysis show... |
| Databáze: | OpenAIRE |
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