The toxicities and toxicological mechanisms of organophosphorus pesticides to microalgae are reviewed. The effects of organophosphorus pesticides on community structure of phytoplankton are also discussed. The toxicities of organophosphorus to microalgae are relatively lower compared to those to aquatic crustaceans and fish, and the EC50 values are generally higher than 1 mg/L. The growth of microalgae is stimulated under low level of pesticides, and inhibited under high pesticide concentrations. Joint toxic effects occur when organophosphorus pesticides are coexisted with the other chemical compounds. Organophosphorus pesticides influence the enzyme activities of algal cells, and the effects on photosynthesis are also an important toxicological mechanism of organophosphorus pesticides to microalgae. The different sensitivity between phytoplankton species and selective grazer of zooplankton to microalgae after application might result in the alteration of phytoplankton community in aquatic ecosystems.
王朝晖*, 梁菊芳, 林朗聪. 有机磷农药对微藻的毒性作用研究概述[J]. , 2012, 31(6): 678-682.
WANG Zhao-hui*, LIANG Ju-fang, LIN Lang-cong. The toxic effects of organophosphorus pesticides on microalgae： a review. , 2012, 31(6): 678-682.
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