Evaluation of the Lifespan of Fruit Fly Drosophila melanogaster Exposed to Dioxins

The polychlorinated dibenzo-p-dioxins (PCDDs) formed during combustion processes and as by-products of industrial processes are persistent organic pollutants. In the present study, the PCDDs of 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,7,8,9-HXCDD and 1,2,3,4,6,7,8,9-OCDD (1, 2.5, 5 and 10 mu g/mL medium) were evaluated for their possible toxicity on the survival rate of Drosophila melanogaster, in vivo. The effects of different concentrations of dioxins were separately administered to female and male populations of D. melanogaster. In all application groups, both the survival rate and each population's longevity decreased, depending on the concentration of dioxins (p<0.05). In conclusion, the toxic effect for the survival rate and longevity was observed in the following order: 2,3,7,8-TCDD> 1,2,3,7,8-PeCDD> 1,2,3,7,8,9-HXCDD> 1,2,3,4,6,7,8,9-OCDD.