盐胁迫对玉簪幼苗抗氧化酶活性的影响  

Effects of salt stress on antioxidant oxidase activity of Hosta plantaginea seedlings

作　　者：包佳欣 吴英恺 甘耀丹 聂春雨[1,2] BAO Jiaxin;WU Yingkai;GAN Yaodan;NIE Chunyu(Daqing Normal University,Daqing 163712,China;Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology,Daqing 163000,China)

机构地区：[1]大庆师范学院,黑龙江大庆163712 [2]黑龙江省油田应用化学与技术重点实验室,黑龙江大庆163000

出　　处：《安徽农学通报》2025年第7期100-103,共4页Anhui Agricultural Science Bulletin

基　　金：国家级大学生创新创业训练项目“5种豆科植物OPT基因家族的全基因组分析”(202310235A002)。

摘　　要：为探究盐胁迫对玉簪幼苗抗氧化酶活性的影响,以玉簪幼苗作为试验材料,盆栽培养14d后,以清水处理为对照,采用不同浓度的NaCl溶液(0.25%、0.50%和0.75%)进行盐胁迫处理,测定其过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、过氧化物酶(POD)和抗坏血酸过氧化物酶(APX)活性。结果表明,随着盐胁迫浓度的升高,玉簪幼苗CAT、SOD和POD活性呈上升趋势;APX活性则呈下降趋势。综上,玉簪幼苗主要通过提高CAT、SOD和POD活性,降低APX活性来清除体内多余有害物质,以抵御盐胁迫。To explore the effect of salt stress on antioxidant oxidase activity of Hosta plantaginea seedlings,Hosta plantaginea seedlings were taken as experimental materials.After 14 days of pot culture,water treatment was used as the control,the seedlings were treated with salt stress with different concentrations of NaCl solution(0.25%,0.50%and 0.75%),and their activity of CAT,SOD,POD and APX.The results showed that the activities of CAT,SOD and POD of Hosta plantaginea seedlings increased with the increase of salt stress concentration;the activity of APX decreased.To sum up,the seedlings of Hosta plantaginea mainly eliminated excess harmful substances in the body by increasing the activities of CAT,SOD and POD,decreased APX activity so as to resist salt stress.

关 键 词：玉簪幼苗 盐胁迫 过氧化氢酶 抗坏血酸过氧化物酶 

分 类 号：S184[农业科学—农业基础科学]