chlorophyll-a and ethiprole

Insecticide ethiprole, the alternative of fipronil which has been restricted in many countries, may contaminant water bodies through surface runoff after agricultural application, however, the aquatic toxicity and environmental behavior of ethiprole is still unknown. In this study, five metabolites of ethiprole (ethiprole sulfone, ethiprole sulfide, ethiprole amide, desethylsulfinyl ethiprole and ethiprole sulfone amide) were synthesized and their toxic effects on photosynthetic pigment and antioxidase in aquatic plant Chlorella pyrenoidosa (C. pyrenoidosa) were evaluated on an enantiomeric level. Besides, the accumulation and metabolism of rac-ethiprole and its enantiomers in algae suspension and algae were studied. Ethiprole sulfide was found to be more toxic than ethiprole, with the 96h EC

Topics: Agriculture; Chlorella; Chlorophyll; Insecticides; Malondialdehyde; Photosynthesis; Pyrazoles; Stereoisomerism; Suspensions; Water Pollutants, Chemical; Water Pollution, Chemical