Impact of two plastic-derived chemicals, the Bisphenol A and the di-2-ethylhexyl phthalate, exposure on the marine toxic dinoflagellate Alexandrium pacificum.
The effects of two plastic-derived chemicals: Bisphenol A (BPA) and di-2-ethylhexyl phthalate (DEHP) were assessed on abundance and physiological responses of the marine toxic dinoflagellate Alexandrim pacificum. During 7days experiment, A. pacificum was exposed to different levels of BPA and DEHP (separately and in mixture). The responses were evaluated and compared with controls. Results showed that A. pacificum was highly sensitive to this contaminants comparing to other phytoplankton species. BPA and DEHP caused the decrease of the biomass (1.2 to 50 times lower relative to the controls), as well as the perturbation of the photosystem and the photosynthetic activity. Nevertheless, our results show a recovery of contaminated cells activity depending on exposure time and BPA and DEHP contamination. This could be related to an adaptation to induced stress or a degradation of BPA and DEHP in the medium.
["M'Rabet|Charaf|C|", 'Pringault|Olivier|O|', 'Zmerli-Triki|Habiba|H|', 'Ben Gharbia|Héla|H|', 'Couet|Douglas|D|', 'Kéfi-Daly Yahia|Ons|O|']
D001559:Benzhydryl Compounds D004051:Diethylhexyl Phthalate D004141:Dinoflagellida D010636:Phenols D010788:Photosynthesis D010795:Phthalic Acids D010969:Plastics D018675:Toxicity Tests D014874:Water Pollutants, Chemical
BPA DEHP Abundance A. pacificum Photosynthetic activity Recovery