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International Journal of Environmental Research
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Current Issue
Journal Archive
Volume Volume 10 (2016)
Issue Issue 4
Autumn 2016, Page 471-666
Issue Issue 3
Summer 2016, Page 357-470
Issue Issue 2
Spring 2016, Page 203-356
Issue Issue 1
Winter 2016, Page 1-202
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Bouraoui, Z., Ghedira, J., Banni, M., Boussetta, H. (2016). Acute Effects of Cadmium and Copper on Cytochemical Responses in the Polychaete Hediste Diversicolor. International Journal of Environmental Research, 10(1), 131-138. doi: 10.22059/ijer.2016.56895
Z. Bouraoui; J. Ghedira; M. Banni; H. Boussetta. "Acute Effects of Cadmium and Copper on Cytochemical Responses in the Polychaete Hediste Diversicolor". International Journal of Environmental Research, 10, 1, 2016, 131-138. doi: 10.22059/ijer.2016.56895
Bouraoui, Z., Ghedira, J., Banni, M., Boussetta, H. (2016). 'Acute Effects of Cadmium and Copper on Cytochemical Responses in the Polychaete Hediste Diversicolor', International Journal of Environmental Research, 10(1), pp. 131-138. doi: 10.22059/ijer.2016.56895
Bouraoui, Z., Ghedira, J., Banni, M., Boussetta, H. Acute Effects of Cadmium and Copper on Cytochemical Responses in the Polychaete Hediste Diversicolor. International Journal of Environmental Research, 2016; 10(1): 131-138. doi: 10.22059/ijer.2016.56895

Acute Effects of Cadmium and Copper on Cytochemical Responses in the Polychaete Hediste Diversicolor

Article 14, Volume 10, Issue 1, Winter 2016, Page 131-138  XML PDF (322.12 K)
Document Type: Original Research Paper
DOI: 10.22059/ijer.2016.56895
Authors
Z. Bouraoui email ; J. Ghedira; M. Banni; H. Boussetta
University of Sousse, Tunisia
Abstract
This study investigated the cytochemical responses in Hediste diversicolor exposed to the environmental concentrations of cadmium (1µM Cd), copper (1µM Cu) and to their equimolar mixture for 48h. Lysosomal membrane stability (LMS), neutral lipids (NL) level, lipofuscin (LF) content and Ca2+-ATPase activity were determined as early subcellular biomarkers of toxicity. The biomarker battery pointed out a high cytoxicity on the polychaete treated with metals. Excessive induction of neutral lipids and lipofuscin accumulations were observed in polychaete treated with copper than cadmium. In addition, the highest level of neutral lipids and lipofuscin was noted in mixture treated group [Cu+Cd]. The increase of neutral lipids and lipofuscin accumulations were negatively correlated with the lysosomal membrane stability and Ca2+-ATPase activity alterations. Our study also demonstrated that the cytochemical biomarkers responses were very important to identify the cellular toxic effects of metals and promising biological tools in the assessment of biological effects of pollutants in natural marine environment.
Keywords
Cadmium; Copper; Cytotoxicity; cytochemical biomarkers; Hediste diversicolor
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