Pb^(2+)胁迫对玉米幼苗生理指标的影响  

Effects of Pb^(2+) Stress on Physiology Indicators of Maize Seedlings

作　　者：黄丽华[1] 李充璧[1] 李芸瑛[1] 

机构地区：[1]肇庆学院生命科学学院,广东肇庆526061

出　　处：《湖北农业科学》2013年第18期4319-4321,共3页Hubei Agricultural Sciences

摘　　要：采用盆栽试验研究了不同浓度的Pb2+溶液对玉米(Zea mays L.)幼苗生理指标的影响。结果表明,在Pb2+作用下,玉米幼苗生长受到一定的抑制作用,较高浓度的Pb2+显示较高的毒性。表现为随着Pb2+浓度的增加,玉米幼苗叶片脯氨酸、丙二醛(MDA)含量增加,超氧化物歧化酶(SOD)、过氧化物酶(POD)活性升高,可溶性蛋白质含量减少。The effects of lead（Pb2＋） solution with different concentration on physiology indicators of maize（Zea mays L.） seedlings were investigated by pot experiment.The results indicated that the growth of maize seedlings was restricted by Pb2＋ as high concentration of Pb2＋had higher toxicity.With the increase of Pb2＋concentration,proline and MDA content as well as SOD and POD activity of leaf blade increased;while the content of soluble protein decreased.

关 键 词：玉米(Zea mays L )幼苗 Pb2+胁迫 生理指标 

分 类 号：S513[农业科学—作物学] Q945.78[生物学—植物学]