甘肃农业科技
甘肅農業科技
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GANSU AGRICULTURAL SCIENCE AND TECHNOLOGY
2013年
11期
26-28,29
,共4页
亚麻幼苗%铅胁迫%NO%抗氧化%保护效应
亞痳幼苗%鉛脅迫%NO%抗氧化%保護效應
아마유묘%연협박%NO%항양화%보호효응
Linseed%Seedling%Pb stress%Nitric oxide%Antioxidant%Protect effect
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。
採用0.1 mmol/L、0.5 mmol/L和1.0 mmol/L SNP溶液處理Pb（Ac）2脅迫下亞痳幼苗，測定不同時期葉片內遊離脯氨痠含量、丙二醛含量、過氧化氫酶活性、過氧化物酶活性、超氧化物歧化酶活性的變化。結果錶明， NO緩解瞭Pb脅迫下亞痳幼苗葉片中丙二醛含量的升高，促進脯氨痠含量升高，提高瞭抗氧化酶的活性。且保護效應與SNP的濃度相關，0.1 mmol/L SNP處理效果顯著優于1.0 mmol/L SNP處理。
채용0.1 mmol/L、0.5 mmol/L화1.0 mmol/L SNP용액처리Pb（Ac）2협박하아마유묘，측정불동시기협편내유리포안산함량、병이철함량、과양화경매활성、과양화물매활성、초양화물기화매활성적변화。결과표명， NO완해료Pb협박하아마유묘협편중병이철함량적승고，촉진포안산함량승고，제고료항양화매적활성。차보호효응여SNP적농도상관，0.1 mmol/L SNP처리효과현저우우1.0 mmol/L SNP처리。
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 determin the change of proline content, malondialdehyde 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 .
