The Effect of Low Temperature on Activities of Cell Protective Enzymes and Protoplasmic Parameters in Leaves of Zea mays

doi:10.3321/j.issn:1000-7091.1993.03.002

Abstract

Abstract: After two days of 4℃ treatment at three-leaf stage, the activities of eatalasc, pcroxidase and supcroxidc dismutasc, and permeability of protoplast layer to nonclcctrotes declined, but level of membrane lipid pcroxidation increased in the leaves of cold sensitive inbred line of maize.In the cold resistant line, by contrast, the activities of the three protective enzymes, and permeability and viscosity of protoplast increased, and correspondingly, membrane lipid pcroxidation had no significant change.The results suggested that there ight be a close relationship between the activities of enzymes investigated or protoplasmic parameters and cold resistance of maize.

Key words: Maize, Low temperature, Protective enzyme, Protoplasmic parameters

Zhang Jingxian, Li Jinming, Cui Siping, Wei Jiankun, Zhang Maiming, Geng Qinghan. The Effect of Low Temperature on Activities of Cell Protective Enzymes and Protoplasmic Parameters in Leaves of Zea mays[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(3): 9-12. doi: 10.3321/j.issn:1000-7091.1993.03.002.

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