| 在紫外辐射B胁迫下钙对大豆幼苗若干生物学特性的影响 |
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| 引用本文： | 任红玉,李东沼,吴志光,徐海明.在紫外辐射B胁迫下钙对大豆幼苗若干生物学特性的影响[J].东北农业大学学报,2009,40(7). |
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| 作者姓名： | 任红玉 李东沼 吴志光 徐海明 |
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| 作者单位： | 东北农业大学资源与环境学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省博士后基金(LBH-Z05086);;东北农业大学青年基金;;东北农业大学大学生科技创新基金(20060303) |
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| 摘 要： | 采用室内水培的试验方法,初步探讨了钙离子(0、5、15mmo·lL-)1对紫外辐射B(UV-B,280～320nm)胁迫下大豆幼苗若干生物学特性的影响。结果表明,在UV-B胁迫下,15mmol·L-1钙离子处理的大豆幼苗叶鲜重的降幅低,且其株高有所增加,POD活性降幅低,可溶性蛋白含量和SOD活性增幅高。表明钙具有缓解紫外辐射伤害大豆幼苗的效应,这同钙离子对大豆幼苗部分生理生化指标的影响有关。
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| 关 键 词： | 钙 紫外辐射B(UV-B)胁迫 大豆幼苗 生物学特性 |
Effects of calcium on biological characteristics of soybean seedlings under UV-B stress |
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| REN Hongyu,LI Dongming,WU Zhiguang,XU Haiming.Effects of calcium on biological characteristics of soybean seedlings under UV-B stress[J].Journal of Northeast Agricultural University,2009,40(7). |
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| Authors: | REN Hongyu LI Dongming WU Zhiguang XU Haiming |
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| Institution: | College of Resources and Environmental Sciences;Northeast Agricultural University;Harbin 150030;China |
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| Abstract: | Under enhanced ultraviolet-B radiation(UV-B: 280-320 nm), effects of calcium on biolo-gical characteristics of soybean seedlings were investigated. The results showed that calcium alleviated the inhibition of soybean seedlings on growth under UV-B stress. The decreasing degree of leaves weight for soybean seedlings treated with 15 mmol·L-1 calcium concentration was significantly lower than that of 5 and 0 mmol·L-1 calcium concentration. The height of the seedlings treated with 15 mmol·L-1 calcium was promoted under UV-B stress. The decreasing degrees of POD activity for soybean seedlings treated with 15 mmol·L-1 calcium concentration was significantly lower, whereas the increasing degrees of soluble protein content and SOD activity were higher. The experiment proved that calcium could mitigate the damage of ultraviolet-B radiation on soybean seedlings, and this effect was related to that calcium affected physiological and biological characteristics of soybean seedlings.seedlings; biological characteristics |
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| Keywords: | calcium ultraviolet-B (UV-B)stress soybean |
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