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- W2384163683 abstract "Cold stress induces plants to produce more reactive oxygen species(ROSs),such as O-2,HO·,1O2,H2O2.Antioxidases play an important role in scavenging ROSs.The seeds of 2 cold-resistant and 2 cold-sensitive varieties of soybean,after soaked with water,10,20,50,100 and 200 mmol L-1 of H2O2 for 10 minutes,were distributed over three layers of sterile filter-paper embedded with the same concentrations of H2O2.Then the seeds were germinated under 5℃.The effects of H2O2 on germination rates,concents of endogenous H2O2,activities of antioxidase and cell membrane permeability were determined and analyzed to discuss the mechanism of H2O2.50 mmol L-1 or less of H2O2 could increase the germination rates and inhibit the cell membrane permeability and increase antioxidase activities under low temperature in all 4 varieties.Antioxidase activities in cold-resistant varieties were higher than those in the cold-sensitive varieties under all concentrations of H2O2.Endogenous H2O2 contents rised in the whole range of concentration of H2O2.Therefore,it is conclude that soaking seeds of soybean with H2O2 can enhance activities of antioxidases,increase their ability to resist cold stress and alleviate cold injury." @default.
- W2384163683 created "2016-06-24" @default.
- W2384163683 creator A5018236992 @default.
- W2384163683 date "2008-01-01" @default.
- W2384163683 modified "2023-09-25" @default.
- W2384163683 title "Effect of Exogenous H_2O_2 on Germination Rate and Activities of Main Antioxidase in Soybean (Glycine max L.) Seedlings under Low Temperature" @default.
- W2384163683 hasPublicationYear "2008" @default.
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