| 不同光照条件对黄瓜幼苗的生理响应 |
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| 引用本文： | 张晓龙,张申,杨小强,王乃喜,王闪闪.不同光照条件对黄瓜幼苗的生理响应[J].江汉大学学报(自然科学版),2012(6):90-93. |
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| 作者姓名： | 张晓龙 张申 杨小强 王乃喜 王闪闪 |
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| 作者单位： | 安徽科技学院生命科学学院 |
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| 基金项目： | 安徽科技学院院青年基金(ZRC2011278) |
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| 摘 要： | 探明不同光照条件对黄瓜幼苗的生理响应。本试验以"津春4号"黄瓜品种为材料,在黄瓜幼苗长至两叶一心时,分别置于不同光照下生长6 d,然后取第2片真叶测定相关指标。结果表明,在弱光下黄瓜叶片丙二醛(MDA)含量、超氧阴离子(O2.-)生成速率以及过氧化氢(H2O2)含量均有显著提高,过氧化氢酶(CAT)活力有所降低,抗坏血酸过氧化物酶(APX)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GPX)和谷胱甘肽还原酶(GR)活性有显著提高。
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| 关 键 词： | 黄瓜 光照强度 抗氧化酶 |
Physiological Response of Cucumber Seedlings Under Different Light Intensity |
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| ZHANG Xiao-long,ZHANG Shen,YANG Xiao-qiang,WANG Nai-xi,WANG Shan-shan.Physiological Response of Cucumber Seedlings Under Different Light Intensity[J].Journal of Jianghan University:Natural Sciences,2012(6):90-93. |
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| Authors: | ZHANG Xiao-long ZHANG Shen YANG Xiao-qiang WANG Nai-xi WANG Shan-shan |
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| Institution: | (College of Life Science,Anhui Science and Technology University,Fengyang 233100,Anhui,China) |
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| Abstract: | In order to investigate the physiological response of cucumber seedlings,seedlings of Cucumber Jinchun No.4 were cultivated at different light intensities for 6 days when the second leaves were fully expanded.Samples of the second leaves were used to determine the activities of an tioxidants such as ascorbate peroxidase(APX),superoxide dismutase(SOD),catalase(CAT),guaiacol peroxidase(GPX),glutathione reductase(GR)and assay the cntents of malondialdehyde(MDA),H2O2 and superoxide anion formation rate(O2.-).The results revealed that low light signifi cantly increased antioxidant activities of cucumber leaves such as APX,SOD,GPX and GR,cntents of MDA,H2O2 and superoxide anion formation rate and reduced the activity of CAT. |
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| Keywords: | cucumber illumination intensity antioxidant enzyme |
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