聚天冬氨酸锰(Ⅱ)对干旱胁迫下菠菜抗氧化酶活性和MDA含量的影响  

Effects of Poly-aspartic Manganese(Ⅱ) on the Activities of SOD,POD,and CAT and MDA Amount in Spinacia oleracea under Drought Stress

作　　者：刘京萍[1] 葛兴[2] 李京霞[1] 罗茜[2] 李云乐[2] 李晶晶[1] 吕燕[1] 

机构地区：[1]北京联合大学师范学院,北京100011 [2]北京农学院基础科学系,北京102206

出　　处：《北京联合大学学报》2012年第2期39-43,50,共6页Journal of Beijing Union University

基　　金：北京联合大学校级自然科学类科研项目"植物生长调节剂对蔬菜抗逆性影响及应用研究"

摘　　要：为研究聚天冬氨酸锰(Ⅱ)对植物抗旱性的影响,使用不同浓度的聚天冬氨酸锰(Ⅱ)分别对菠菜种子和幼苗进行处理。结果表明:在模拟干旱条件下,用0.1 mg/L聚天冬氨酸锰(Ⅱ)浸种,在试验浓度范围内促进菠菜发芽的效果显著。浸种及叶面喷施使菠菜叶片宽度、SOD、POD和CAT酶的活性均有增高,并且对MDA的产生有抑制作用。在试验浓度范围内12.5 mg/L浓度的聚天冬氨酸锰(Ⅱ)对菠菜叶面喷施效果显著。用聚天冬氨酸锰(Ⅱ)模拟物作为一种植物生长调节剂对菠菜浸种和叶面喷施能有效促进菠菜发芽和提高幼苗期菠菜抵抗干旱的能力。In order to know the anti- drought stressing effect of poly-aspartic manganese （II） , Poly-aspartic manganese（ II ） of different densities was used on Spinacia oleracea seeds and seedlings. Under the simulated drought condition, results showed that under the presoaked condition （poly-aspartic manganese （ II） of 0. lmg/ L）, the sprouting of effect of Spinacia oleracea was obvious. Presoaking activities enlarged the width of the leaves, raised the SOD, POD, CAT activities, and the generation of MDA was restrained. 12.5 mg/L was the best spraying density. Under the experiment condition, poly-aspartic manganese （ II） mimic can be used as a good plant growth regulator to presoak condition, poly-aspartic manganese （ II ） growth regulator to presoak Spinacia oleracea and to spray its leaves, and this anti-drought-stressing ability during seedling period mimic can be used as a good plant can improve seed germination and

关 键 词：聚天冬氨酸锰(Ⅱ) 菠菜 超氧化物岐化酶 过氧化物酶 过氧化氢酶 丙二醛 

分 类 号：S482.8[农业科学—农药学]