铅胁迫对玉米生理生化特性的影响  

Effects of Pb Stress on the Physiological and Biochemical Traits of Maize

作　　者：曹莹[1] 黄瑞冬[1] 曹志强[1] 

机构地区：[1]沈阳农业大学农学院,沈阳110161

出　　处：《玉米科学》2005年第3期61-64,共4页Journal of Maize Sciences

摘　　要：通过盆栽研究了不同浓度铅胁迫对玉米叶片的质膜透性、丙二醛、可溶性糖、可溶性蛋白、脯氨酸、超氧化物歧化酶、过氧化氢酶、过氧化物酶活性的影响。结果表明,随铅浓度升高,叶片的膜脂过氧化作用加剧,质膜透性升高。低浓度铅处理对玉米生长具有一定的刺激作用,而高浓度铅处理对玉米生长则表现为抑制作用。Effects of lead stress on the membrane permeability, MDA, soluble sugar and protein, proline, activity of SOD, CAT and POD were studied with the maize cultured in pots. The experiment results showed that the lipid peroxidation was aggravated and the membrane permeability raised. The treatment of low concentrtion lead stimulated the growth of maize, however the treatment of high concentration lead hold it.

关 键 词：玉米 铅 生理生化特性 

分 类 号：S513.01[农业科学—作物学]