摘要
Objective:To investigate the acaricidal activity of different extracts from Syzygium cumini(S.cumini)(Pomposia)againsst Tetranyckus urticae Koch(71 urticae)and the biochemical changes in antioxidants enzymes.Methods:Six extracts of S.cumini(Pomposia)at concentrations of 75,150 and 300μg/mL were used to control T.urticae(Koch).Results:The ethanol extract showed the most efficient acaricidal activity agent against T.urticae(98.5%)followed by hexane extract(94.0%),ether and ethyl acetate extract(90.0%).The LC_(50)values of the promising extract-were 85.0,101.0,102.0 and 98.0μ/mL,respectively.The activities of enzymes including ascorbate peroxidase(APX),peroxidase(POD),superoxide dismutase(SOD)and catalase(CAT)in susceptible mites were increased.The activities of all antioxidant enzymes reach the maximum value in mites at LC_(50)with ethanol and ethyl acetate extracts,respectively.Conclusions:The extract of S.cumini has acaricidal acivity against T.urticae,and the ethanol extract is the most efficient.
Objective:To investigate the acaricidal activity of different extracts from Syzygium cumini(S. cumini)(Pomposia) againsst Tetranychus urticae Koch(T.urticae) and the biochemical changes in antioxidants enzymes.Methods:Six extracts of S.cumini(Pomposia) at concentrations of 75, 150 and 300μg/mL were used to control T.urticae(Koch).Results:The ethanol extract showed the most efficient acaricidal activity agent against T.urticae(98.5%) followed by hexane extract(94.0%), ether and ethyl acetate extract(90.0%).The LC_(50) values of the promising extract were 85.0,101.0, 102.0 and 98.0μg/mL,respectively.The activities of enzymes including ascorbate peroxidase(APX),peroxidase(POD),superoxide dismutase(SOD) and catalase(CAT) in susceptible mites were increased.The activities of all antioxidant enzymes reach the maximum value in mites at LC_(50) with ethanol and ethyl acetate extracts,respectively.Conclusions:The extract of S.cumiiu has acaricidal acivity against T.urticae,and the ethanol extract is the most efficient
基金
Supported by Scientific Research Sector.Faculty of Agriculture.Cairo University
