2014•GuihaiaRequires access

Cold resistance mechanism studyon effect of exogenous SOD under low temperature stress of young loquat fruits

Xiao Wang

Abstract

Young loquat fruits' activities of antioxidant enzymes,cell membrane permeability and content of malondialdehyde(MDA)after spraying different concentrations of Poly-aspartic Mangan(MSOD)under low temperature stress were studied.The results showed that MSOD with different concentrations(5.0,12.5,20.0mg/L)could reduce cell membrane permeability and content of MDA and enhance the activities of superoxide dismutase(SOD),catalase(CAT),ascorbate peroxidase(APX)and peroxidase(POD),the concentration of 12.5mg/L had the best effect.

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Key concepts: APX, Superoxide dismutase, Malondialdehyde, Catalase, Peroxidase, Chemistry, Membrane permeability, Point of delivery