摘要
采用0.1 mmol/L、0.5 mmol/L和1.0 mmol/L SNP溶液处理Pb(Ac)2胁迫下亚麻幼苗,测定不同时期叶片内游离脯氨酸含量、丙二醛含量、过氧化氢酶活性、过氧化物酶活性、超氧化物歧化酶活性的变化。结果表明,NO缓解了Pb胁迫下亚麻幼苗叶片中丙二醛含量的升高,促进脯氨酸含量升高,提高了抗氧化酶的活性。且保护效应与SNP的浓度相关,0.1 mmol/L SNP处理效果显著优于1.0 mmol/L SNP处理。
The seeding of Linseed under Pb（Ac）2 stress in the concentrations of 0.1 mmol/L, 0.5 mmol/L and 1.0 mmol/L was studied through 96 h to determiu the change of proline content, ma]ondialdehyde content, the activity of superoxide dismutase, peroxidase and catalase in different treatment periods leaves of Linseed. The results indicated that the Nitric Oxide has thrown a light on the increasing of malondialdehyde content in Linseed seedling leaves compared with Pb（Ac）2 stress, the activities of antioxidant enzymes were increased, the content of praline were increase. The protective ability of concentrations of 0.1 mmol/L was significantly better than the concentrations of 1.0 mmol/L.
出处
《甘肃农业科技》
2013年第11期26-29,共4页
Gansu Agricultural Science and Technology
关键词
亚麻幼苗
铅胁迫
NO
抗氧化
保护效应
Linseed
Seedling
Pb stress
Nitric oxide
Antioxidant
Protect effect
