| 模拟酸雨对南方红豆杉生理特性的影响 |
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| 引用本文： | 刘建福,杨晨,王明元.模拟酸雨对南方红豆杉生理特性的影响[J].热带作物学报,2012,33(6):1046-1050. |
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| 作者姓名： | 刘建福 杨晨 王明元 |
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| 作者单位： | 华侨大学生物工程与技术系,福建厦门,361021 |
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| 基金项目： | 福建省星火计划项目（2010S0037）；中央高校基本科研业务费专项基金（JB-ZR1151）；泉州市科技计划重点项目（2010N10）；华侨大学科研基金项目（07HZR24）。 |
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| 摘 要： | 研究模拟酸雨对南方红豆杉叶片形态和生理特性的影响.结果表明:酸雨胁迫下南方红豆杉叶尖出现伤害症状,叶片发生脱落,随着酸雨胁迫程度的加剧,叶片损伤程度加重；酸雨胁迫下叶绿素、类胡萝卜素、丙二醛和可溶性糖含量变化不明显；酸雨胁迫下超氧化物歧化酶(SOD)活性变化不明显；中度胁迫(pH4.0)和轻度胁迫(pH5.6)时过氧化氢酶(CAT)活性显著高于对照,而重度胁迫(pH2.5)的CAT活性显著低于对照；轻度胁迫时过氧化物酶(POD)活性显著高于对照,而中度胁迫和重度胁迫的POD活性显著低于对照.这说明南方红豆杉对pH4.0～5.6的酸雨胁迫有一定的适应性和抵抗力.
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| 关 键 词： | 模拟酸雨 南方红豆杉 生理特性 抗性 |
Effect of Simulated Acid Rain on Physiological Characteristics in Taxus chinensis var. Mairei |
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| LIU Jianfu,YANG Chen and WANG Mingyuan.Effect of Simulated Acid Rain on Physiological Characteristics in Taxus chinensis var. Mairei[J].Chinese Journal of Tropical Crops,2012,33(6):1046-1050. |
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| Authors: | LIU Jianfu YANG Chen and WANG Mingyuan |
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| Institution: | Department of Bioengineering, Huaqiao University;Department of Bioengineering, Huaqiao University;Department of Bioengineering, Huaqiao University |
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| Abstract: | The test was conducted with 2-year-old trees of Taxus chinensis var. Mairei. Leaves were sprayed with the simulated acid rain with different pH values to study the effects of the acid rain on the physiological characteristics and leaf morphology in Taxus chinensis var. Mairei. The results indicated that blade tip appeared damage spots and leaf loss occurred under the stress of acid rain. There were not significant change of the content of chlorophyll and carotenoids and malondialdehyde and soluble sugar and protein. Superoxide dismutase activity did not change significantly under the acid rain stress. Compared to the control, catalase activity significantly increased with acid rain of pH4.0 and 5.6, decreased with acid rain of pH2.5. and peroxidase activity was significantly higher than those of control in pH5.6, and lower than those of control in pH4.0 and 2.5. Therefore, it has been showed a certain resistance to acid rain stress of Taxus chinensis var. Mairei. in pH4.0 and 5.6. |
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| Keywords: | Simulated Acid Rain Taxus chinensis var Mairei Physiological Characteristics Resistances |
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