英语翻译重金属镍胁迫对麻风树幼苗生理生化特性的影响摘要：本实验采用无土栽培,用不同浓度金属镍（Ni2+）的培养液胁迫麻风

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英语翻译
重金属镍胁迫对麻风树幼苗生理生化特性的影响
摘要：本实验采用无土栽培,用不同浓度金属镍（Ni2+）的培养液胁迫麻风树幼苗,7天后,通过测定其过氧化物酶（POD）活性、叶绿素、丙二醛（MDA）、游离脯氨酸 (Pro)、可溶性糖、可溶性蛋白含量以及根系活力等,研究Ni2+胁迫对麻风树幼苗生理生化指标的影响.研究结果为：在Ni2+溶液的胁迫下,随着Ni2+浓度的提高过氧化物酶（POD）活性、叶绿素含量、丙二醛（MDA）含量、可溶性糖含量和可溶性蛋白含量呈先上升后下降的趋势,游离脯氨酸（Pro）呈一直上升的趋势,幼苗根系活力与对照组相比,呈一直下降的趋势.由此可知,麻风树幼苗对Ni2+胁迫有一定的抵抗作用,胁迫浓度过高会削弱麻风树体内保护酶的作用,根系对营养物质的吸收能力受到破坏,使生长受到影响.
关键词：麻风树；镍胁迫；生理生化特性

1个回答分类：英语 2014-11-23

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Heavy metals nickel stress on physiological and biochemical characteristics of Jatropha Seedlings Abstract: In this study, soilless cultivation, stress jatropha seedlings treated with different concentrations of nickel (Ni2 +) in culture medium for 7 days, by measuring its peroxidase (POD) activity , chlorophyll and malondialdehyde (MDA), free proline (Pro), soluble sugar , soluble protein content and root activity , research Ni2 + Stress on physiological and Biochemical jatropha seedlings . Research results : Under duress Ni2 + solution , with the improvement of Ni2 + concentration of peroxidase (POD) activity , chlorophyll content , malondialdehyde (MDA) content , soluble sugar and soluble protein content increased first and then decreased trends proline (Pro) in a straight upward trend , seedling root activity compared with the control group , a straight downward trend. It can be seen , jatropha seedlings to Ni2 + has some resistance to stress the role of stress concentration is too high would undermine the role of protective enzymes in vivo Jatropha roots ability to absorb nutrients is damaged, so that growth is affected. Keywords : Jatropha ; nickel stress ; physiological and biochemical characteristics

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