| 毛桂莲,付晓辉.外源Ca2＋和H2O2对NaCl 胁迫下枸杞离体叶片叶绿体中活性氧代谢的影响研究[J].干旱地区农业研究,2009,27(5):191~195 |
| 外源Ca2＋和H2O2对NaCl 胁迫下枸杞离体叶片叶绿体中活性氧代谢的影响研究 |
| Effects of exogenous Ca2＋ and H2O2on active oxygen metabolism of isolated leaves of Lycium barbarum L．chloroplast under NaCl stress |
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| DOI：10.7606/j.issn.1000-7601.2009.05.35 |
| 中文关键词: 枸杞 外源Ca2＋和H2O2 NaCl胁迫 活性氧代谢 |
| 英文关键词:Lycium barbarum L. exogenous Ca2＋ and H2O2 NaCl stress active oxygen metabolism |
| 基金项目:宁夏自治区自然科学基金(NZ0809)； 宁夏大学科研基金(ZR200733) |
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| 中文摘要: |
| 以枸杞离体叶片为材料,研究NaCl胁迫下外源Ca2＋和H2O2对枸杞离体叶片叶绿体中O-2产生速率、丙二醛(MDA)含量及抗坏血酸过氧化物酶(APX)、过氧化物酶(POD)和过氧化氢酶(CAT)活性的影响。结果表明:在NaCl胁迫下O-2产生速率呈上升趋势,丙二醛含量增大,保护酶APX、CAT、POD活性较对照升高。在NaCl胁迫下,加入外源Ca2＋和H2O2时丙二醛(MDA)含量和O-2产生速率较单纯NaCl胁迫下降低;保护酶APX、CAT、POD活性较单纯NaCl胁迫下升高。表明外源Ca2＋和H2O2在一定程度上可以缓解NaCl胁迫对植物体造成的伤害。 |
| 英文摘要: |
| In this study, the effects of exogenous calcium and H2O2 on the activity of oxygen (O-2) themalondialdehyde content (MDA) , the activity of superoxide dismutase (SOD) , the activity of peroxide (POD) , catalase (CAT) and antiscorbutic acid peroxide enzyme (APX) were examined in Lycium barbarum L.chloroplast under NaCl stress.The results indicated that, under NaCl stress, O-2 production rate and MDA content generally increased, meanwhile CAT and POD activities were also higher than those of control.When adding exogenous Ca2＋ and H2O2 under NaCl stress, MDA content and O-2 production rate were slower than those of NaCl stress, while protecting enzyme APX, CAT and POD activities increased compared to NaCl stress.It indicated that exogenous Ca2＋ and H2O2 alleviated NaCl stress injury to plants to some extent. |
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