| 自然降温对侧柏叶抗氧化物酶活性及MDA含量的影响 |
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| 引用本文： | 江萍,石健,牛攀新,鲁月. 自然降温对侧柏叶抗氧化物酶活性及MDA含量的影响[J]. 石河子大学学报(自然科学版), 2009, 27(1) |
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| 作者姓名： | 江萍 石健 牛攀新 鲁月 |
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| 作者单位： | 江萍,牛攀新,鲁月,JIANG Ping,NIU Pan-Xin,LU Yue(石河子大学农学院林学系,新疆石河子,832000);石健,SHI Jian(新疆兵团农八师142团,新疆石河子,832029) |
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| 摘 要： | 针对生产栽培中侧柏普遍存在的枯梢现象,测定并分析了越冬时期侧柏叶片内超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性及丙二醛(MDA)含量变化.结果表明:1)侧柏叶内活性氧的保护酶体系主要途径是SOD-CAT;2)自然状态下侧柏叶MDA含量均比套袋保护的高,其膜脂过氧化作用较大.由此可知:在自然降温条件下,活性氧代谢失调是侧柏枯梢的重要因素之一,其枯梢与体内能否维持较高的抗氧化酶活性有密切关系.西北方向的侧柏枝梢叶片受害现象严重,建议在侧柏的生产栽培中西北方向架设风障.
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| 关 键 词： | 侧柏 超氧化物歧化酶 过氧化物酶 过氧化氢酶 丙二醛 |
Effects on Activities of Defensive Enzymes and MDA Content in Leaves of Platycladus orientalis under Naturally Decreasing Temperature |
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| JIANG Ping,SHI Jian,NIU Pan-Xin,LU Yue. Effects on Activities of Defensive Enzymes and MDA Content in Leaves of Platycladus orientalis under Naturally Decreasing Temperature[J]. Journal of Shihezi University(Natural Science), 2009, 27(1) |
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| Authors: | JIANG Ping SHI Jian NIU Pan-Xin LU Yue |
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| Affiliation: | 1 College of Agriculture;Shihezi University;Shihezi;Xinjiang 832003;China;2 State Farm 142;Xinjiang 832029;China |
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| Abstract: | The experiment focused on dried-shoot of Platycladus orientalis,MDA content and activities of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) were measured and analyzed in its leaves under naturally decreasing temperature.The results showed:1)SOD-CAT was the main way of defensive enzyme system in Platycladus orientalis.2)MDA content in out-bagging-leaves was much higher than that in bagging-leaves,it indicated that membrane lipid peroxidation in out-bagging-leaves was much more serious.Conclusio... |
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| Keywords: | Platycladus orientalis L. superoxide dismutase peroxidase catalase MDA |
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