水分胁迫下乙醇胺对香蕉幼苗抗逆性的影响  

The Impact of Protective Enzymes for Different Pesticides on Bananas under Water Stress

作　　者：李来平 李来旺 

机构地区：[1]海南省万宁市龙滚镇农业服务中心,海南 万宁 [2]海南惠飞植保工程科技有限公司,海南 海口

出　　处：《农业科学》2021年第1期46-53,共8页Hans Journal of Agricultural Sciences

摘　　要：通过用乙醇胺溶液喷施5叶1心的巴西香蕉组培袋育苗,经浓度为10% PEG-6000作用进行水分胁迫处理24小时后,研究乙醇胺(Ea)对香蕉幼苗抗逆性的影响。结果表明乙醇胺预处理提高了超氧歧化酶(SOD),过氧化物酶(POD)活性,减少了丙二醛(MDA),超氧自由基(O2-)在叶片内的积累,从而提高了香蕉幼苗的抗旱能力。以32.0 mmol/L−1乙醇胺(Ea)处理的效果最好。The seedlings of Brazilian banana tissue culture bags with 5 leaves and 1 heart were sprayed with ethanolamine solution, and after water stress treatment with a concentration of 10% PEG-6000 for 24 hours, the effect of ethanolamine (Ea) on the stress resistance of banana seedlings was studied. The results showed that ethanolamine pretreatment increased the activities of superoxide dismutase (SOD) and peroxidase (POD), while reducing the accumulation of malondialdehyde (MDA) and superoxide radicals (O2-) in the leaves, thereby increasing the drought resistance of banana seedlings. The treatment with 32.0 mmol/L−1 ethanolamine (Ea) has the best effect.

关 键 词：香蕉 乙醇胺 水分胁迫 

分 类 号：S66[农业科学—果树学]