| ~(133)Cs和~(88)Sr在蚕豆苗中的蓄积及其辐射损伤效应 |
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| 引用本文： | 张晓雪,王丹,李卫锋,徐长合,钟钼芝.~(133)Cs和~(88)Sr在蚕豆苗中的蓄积及其辐射损伤效应[J].辐射研究与辐射工艺学报,2010,28(1):48-52. |
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| 作者姓名： | 张晓雪 王丹 李卫锋 徐长合 钟钼芝 |
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| 作者单位： | 1. 西南科技大学生命科学与工程学院,绵阳,621010
2. 西南科技大学生命科学与工程学院,绵阳621010;核废物与环境安全国防重点学科实验室,绵阳621010 |
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| 基金项目： | 西南科技大学重点项目核辐射环境下的生物稳定性与变异及其机理研究，西南科技大学青年基金科研项目 |
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| 摘 要： | 通过水培试验研究了蚕豆苗对不同浓度133Cs和88Sr的蓄积及其辐射损伤效应。本实验利用原子吸收方法测定蚕豆苗对133Cs和88Sr的蓄积量,研究了133Cs和88Sr在蚕豆苗各部位的分布及对其生理影响。结果表明:在133Cs和88Sr所设不同浓度下,蚕豆苗地上部和根部的133Cs和88Sr蓄积量均随浓度梯度升高而增加,表现出根部含量地上部含量,133Cs含量88Sr含量。随着时间的推移,蚕豆苗对溶液中133Cs和88Sr蓄积量表现出先骤升后趋于平稳的趋势;随核素浓度的上升,根系活力均表现为先增强后减弱的趋势;蚕豆苗叶片中的丙二醛含量增加,叶片中丙二醛含量变化均较根系的大。88Sr处理组中的可溶性糖含量高于133Cs处理组。
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| 关 键 词： | 蚕豆苗 铯 锶 蓄积 损伤效应 |
Studies on accumulation of ~(133)Cs and ~(88)Sr in Vicia faba Linn and irradiation damage effect |
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| ZHANG Xiaoxue,WANG Dan,LI Weifeng,XU Changhe,ZHONG Muzhi.Studies on accumulation of ~(133)Cs and ~(88)Sr in Vicia faba Linn and irradiation damage effect[J].Journal of Radiation Research and Radiation Processing,2010,28(1):48-52. |
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| Authors: | ZHANG Xiaoxue WANG Dan LI Weifeng XU Changhe ZHONG Muzhi |
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| Affiliation: | (College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 62101 O, China) 2 (Defense Key Discipline Laboratory of the Nuclear Waste andEnvironmental Security, Mianyang 621010, China) |
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| Abstract: | The different concentrations of ~(133)Cs and ~(88)Sr accumulated by Vicia faba Linn and its irradiation damage effect were studied during cultivation in hydroponic condition.The accumulation of ~(133)Cs and ~(88)Sr was determined by FAAS,the distribution in different organs of Vicia faba Linn and physiological effect of ~(133)Cs and ~(88)Sr were investigated.The results show that at low concentration level the ~(133)Cs and ~(88)Sr taken by above-ground and root of Vicia faba Linn increase with the increment of their initial concentration and the accumulation relationship of contents is roots＞above-grounds and ~(133)Cs＞~(88)Sr.When the plantlcts exposed to ~(133)Cs or ~(88)Sr,the aceumulated amounts increase rapidly at begin then increase slowly along with the cultured time.With the increment of initial concentration the root activities tend to increase at first and then decrease.It has been found that the MDA contents in leaves increase with the experimental time and are higher than that in root while the contents of solubsugar of 88Sr treated group are higher than that of ~(133)Cs treated group. |
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| Keywords: | Vicia faba Linn 133Cs 88Sr Accumulation Damage effect |
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