农用稀土对两个甜玉米种子萌发期营养成分和抗氧化酶的影响  

Effect of Agricultural Rare Earths on Nutritional Components and Antioxidant Enzymes of Two Sweet Corn Seeds During Germination

作　　者：周柏宇 徐运林 房浩 程昕昕 ZHOU Boyu;XU Yunlin;FANG Hao;CHENG Xinxin(College of Agriculture,Anhui Science and Technology University,Fengyang 233100,Anhui,China)

机构地区：[1]安徽科技学院农学院,安徽凤阳233100

出　　处：《江汉大学学报（自然科学版）》2020年第4期64-71,共8页Journal of Jianghan University：Natural Science Edition

基　　金：国家自然科学基金委员会应急管理项目(31440066);安徽省高校自然科学研究重大项目和安徽科技学院稳定人才项目共同资助(KJ2019ZD57)。

摘　　要：主要研究了3种浓度的农用稀土对‘理科甜5807’和‘荣玉甜7号’两个甜玉米品种萌发期种子中蛋白质和葡萄糖含量以及抗氧化物酶活性的影响。结果表明:0.5%、2.0%的稀土溶液促进‘理科甜5807’蛋白质的分解;而3种浓度处理均抑制‘荣玉甜7号’蛋白质的分解。在种子萌发前期(1~3 d),2.0%稀土溶液促进‘理科甜5807’葡萄糖形成的效果最明显,在萌发后期(5~7 d),0.5%稀土溶液促进其分解的效果最明显;在整个萌发期,0.5%稀土溶液促进‘荣玉甜7号’葡萄糖合成与分解的效果最明显。随着种子的萌发,两个品种SOD活性均增强。2.0%稀土促进‘理科甜5807’POD活性增强的效果最明显;3种处理均能增强‘荣玉甜7号’POD活性。2.0%稀土增强‘理科甜5807’CAT活性的效果最好;1.0%稀土增强‘荣玉甜7号’CAT活性的效果最好。This experiment mainly studied the effects of three concentrations of agricultural rare earths on the content of protein and glucose and the activity of the antioxidant enzyme in the seeds of two sweet corn varieties,’Liketian 5807’ and ’Rongyutian 7’. The results showed that 0. 5% and 2. 0% rare earth solution promoted the decomposition of ’ Liketian 5807’protein;while the three concentrations inhibited the decomposition of ’Rongyutian 7’ protein.In the early stage of seed germination(1-3 days),the effect of 2. 0% rare earth solution on promoting glucose synthesis of ’Liketian 5807’ was the most obvious;in the later stage of germination(5-7 days),the effect of 0. 5% rare earth solution on promoting glucose decomposition of ’ Liketian 5807’ was the most obvious. During the whole germination period, the effect of 0. 5% rare earth solution on promoting glucose synthesis and decomposition of ’Rongyutian 7’ was the most obvious. As the seeds germinated,the SOD activity of both cultivars increased. The effect of 2. 0% rare earth on the enhancement of the POD activity of ’Liketian 5807’ was the most obvious;all the three concentrations enhanced the POD activity of ’ Rongyutian 7’. 2. 0% rare earth had the best effect on enhancing the CAT activity of ’Liketian 5807’,and 1. 0% rare earth had the best effect on enhancing the CAT activity of ’Rongyutian 7’.

关 键 词：农用稀土 甜玉米 种子萌发 营养成分 抗氧化酶 

分 类 号：S330[农业科学—作物遗传育种]