DOI:. 试验研究外源抗氧化剂对高温胁迫下红地球葡萄果皮组织 CAT 、 APX 和 SOD 酶活性的影响王文举,王振平* (宁夏大学农学院/ 葡萄与葡萄酒教育部工程研究中心/ 宁夏葡萄与葡萄酒研究院,银川 750021 ) 摘要:以红地球葡萄为试材,喷施抗坏血酸( Vc )、苯甲酸钠( SBN )、水杨酸( SA )、柠檬酸( CA )、***化钙( CaCl 2 )等 5 种抗氧化剂,研究不同外源抗氧化剂对高温胁迫下果皮组织中过氧化氢酶( CAT )、抗坏血酸过氧化物酶( APX )、超氧化物歧化酶( SOD )活性的影响。结果表明:喷施外源抗氧化剂均能显著提高果皮组织内 CAT 、 APX 和 SOD 的活性。综合分析:以 Vc 10 mmol/L , SA mmol/L , CA 10 mmol/L , Vc 10 mmol/L+CaCl 2 1000 mg/L , Vc 10 mmol+SBN 10 mmol/L 为极显著。关键词:葡萄果皮组织;高温胁迫;外源抗氧化剂;酶活性中图分类号: 文献标志码:A Effects of exogenous antioxidants on CAT, APX and SOD activity in Red Globe grape skin under high temperature stress Wang Wenju, Wang Zhenping* (Agriculture College of Ningxia University, Ningxia University Engineering Research Center of Grape and Wine, Ministry of Education, Yinchuan 750021) Abstract : Red Globe grape was sprayed with ascorbic acid, sodium benzoate, salicylic acid, citric acid, calcium chloride to study the effect of different exogenous antioxidants on the activity of catalase(CAT), ascorbate peroxidase(APX), superoxide dismutase(SOD) in the grape skin under high temperature stress. The results showed that exogenous antioxidants could significantly improve the CAT, APX and SOD activity in grape skin. prehensive analysis showed that the following treatments: Vc 10 mmol/L, SA mmol/L, CA 10 mmol/L, Vc 10 mmol/L + CaCl 2 1000 mg/L, Vc 10 mmol + SBN 10 mmol/L, have gr
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