Physiological and Biochemical Responses of Fresh Water Algae, Ankistrodesmus acicularis and Anabaena flos-aquae, to Dichlobenil Exposure | Chapter 12 | Recent Advances in Biological Research Vol. 6
The herbicide dichlobenil is widely used to control unwanted weeds in non-agricultural areas and aquatic environment. When released into environment, it may harm the growth of algae, which in turn might disturb the balance of aquatic ecosystem. Herein, the physiological as well as the biochemical responses of two fresh water algae, namely Ankistrodesmus acicularis (Chlorophyta) and Anabaena flos-aquae (Cyanobacteria), to different concentrations of dichlobenil were assessed. Parameters, including chlorophyll (a) Content, EC50 values, carbohydrate and adenosine triphosphate (ATP) contents as well as the uptake by both algal species were evaluated. We found a significant decrease in chlorophyll (a) content of both algal species to intermediate and high concentration of dichlobenil, whereas stimulative effect was observed for low concentration of dichlobenil on Chl (a) content. Attainable results derived by probit analysis revealed that the EC50 values at 5th and 7th days were approxim...