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Effect of linear alkylbenzenesulfonate on scenedesmus quadricauda in culture



Effect of linear alkylbenzenesulfonate on scenedesmus quadricauda in culture



Environmental & Experimental Botany 26(1): 39-52



Synhetic detergents are among the most prevalent of water pollutants leading to ecological disturbances. Therefore, their potential ecotoxicological impact was studied using a laboratory model system. The effect of different concentrations of linear alkylbenzene sulfonate (LAS), a major component of synthetic detergent, on experimental cultures of the fresh water alga Scenedesmus quardicauda has been studied. The threshold level for LAS was found to be 0.05%, above that level marked toxicity was evident and growth and survival of exposed cultures were adversely affected. There was also a decrease in nutrient uptake and in protein and DNA syntheses. Pathomorphological alterations were also evident from scanning electron microscopic observations. The significance of the above data in relation to aquatic toxicity and ecotoxicological impact of synthetic detergents is discussed.

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Accession: 005250972

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