| 重离子束辐照牧草的细胞学研究 |
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| 引用本文： | 颉红梅,郝冀方,卫增泉,谢忠奎,李风琴,王亚军.重离子束辐照牧草的细胞学研究[J].激光生物学报,2003,12(5):346-349. |
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| 作者姓名： | 颉红梅 郝冀方 卫增泉 谢忠奎 李风琴 王亚军 |
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| 作者单位： | 1. 中国科学院近代物理研究所,中国甘肃,兰州,730000
2. 中国科学院寒区旱区环境与工程研究所,中国甘肃,兰州,730000 |
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| 基金项目： | 中国科学院寒区旱区环境与工程研究所创新项目(210069) |
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| 摘 要： | 采用80MeV／u^20Ne^10 叶离子束贯穿处理豆科与禾本科牧草种子，从实验室种子萌发和根尖细胞的观测分析，随着贯穿剂量的增加，幼苗生长明显减弱，呈负相关性；而染色体总畸变率和徽核率随剂量的增加而显著增加，呈正相关性。结果表明：禾本科牧草比豆科牧草对重离子辐射敏感性强，禾本科牧草适宜剂量为20Gy～30Gy，豆科牧草辐照剂量应高于150Gy。
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| 关 键 词： | 重离子束 牧草 细胞 |
| 文章编号： | 1007-7146(2003)05-0346-04 |
| 收稿时间： | 2003/6/25 |
| 修稿时间： | 2003年6月25日 |
Research on Cytology of Herbage Irradiated by Heavy Ion Beams |
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| Abstract: | Herbage seeds of legume and grass were irradiated in penetration by 80 MeV/u20Ne10+ ions. Based on seed germination in laboratory and observation of their root-tip cells, the growth of seedlings was obviously weakened with dose increase and negative correlation between them was found. Total frequencies of chromosomal aberration and micronucleus increased significantly with the increase of irradiation doses, there were positive correlation between the frequency and the dose. The results showed that radiation sensitivity of grass herbage to heavy ion beams was much higher than that of leguminous herbage. The suitable dose is 20 Gy～30Gy for grass herbage and more than 150Gy for leguminous herbage in the experiments. |
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| Keywords: | heavy ion beam herbage cell |
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