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《Journal of Hunan Agricultural University》 2001-02
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Differences of Activities of Protective Enzymes of Tea Plant Varieties with Different Cold Resistant Abilities

LUO Jun wu,TANG He ping,HUANG Yi huan,GONG Zhi hua,XIAO Wen jun (College of Food Science and Technology,HNAU, Changsha 410128,PRC)  
To explore the relationship between protective enzyme activities and ability of cold resistance of tea plant,the activities of superoxide dismutase(SOD),catalase(CAT),peroxidase(POD)and the contents of soluble protein and malondialdehyde(MDA) in mature pring leaves of six varieties with different cold resistant ablilties were determined in natural condition. The results show that varieties of strong cold resistance have strong activities of SOD and CAT,while those of weak cold resistance have weak activities of SOD and CAT. The contents of soluble protein are higher in leaves of strong cold resistant varieties than those in low cold resistance varieties. The activities of POD and contents of MDA have no correlation with the ablilty of cold resistance of tea plant. According to this fact, it is suggested that activities of SOD,CAT and contents of soluble protein be used as indexes to detect the cold resistance of tea plant.
【Fund】: 湖南省自然科学基金资助项目! (97JJY2 0 73)
【CateGory Index】: S571.1
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