期刊论文

中文

生态环境学报

1674-5906

2008

17

1

232-236

10.16258/j.cnki.1674-5906.2008.01.043

国家自然科学基金项目（20677080）

本校为第一机构

为探讨植物生长调节剂对大豆Cd胁迫伤害的缓解效应，采用营养液培养试验方法，研究了喷施萘乙酸（NAA）和加Zn处理对3个Cd胁迫大豆幼苗的影响。结果表明，加Zn和喷施NAA均可降低Cd胁迫大豆幼苗叶片丙二醛（MDA）和脯氨酸（PRO）含量，可减轻膜脂的过氧化作用及蛋白质的水解；喷施NAA还可降低Cd胁迫大豆幼苗POD活性，提高硝酸还原酶（NR）活性；加Zn对Cd胁迫大豆幼苗NR活性的降低缺乏抑制作用，但降低沔1101叶片中POD活性，提高湘04-6和特早熟毛豆的POD活性，品种之间表现明显的差异性。

Cadmium is a heavy metal toxicity for humans, animals and plant. Glycine max seedlings were grown in the presence of cadmium. After 1 week of Cd treatment, a sharp decline in biomass product was observed, together with a decrease in the activities of nitrate reductase. Cadmium induced a significant increase in the contents of malondialdehyde （MDA） and proline （PRO） and peroxidase （POD） activities in leaves of Glycine max seedlings. The aim of the present work was to study the relieving effect of naphthalene acetic acid （ NAA ） and Zn on...