低能重离子生物学研究进展  

The present state and perspectives of low-energy heavy ion biology

作　　者：袁成凌[1] 余增亮[1] 

机构地区：[1]中国科学院等离子体物理研究所离子束生物工程学重点实验室,合肥230031

出　　处：《辐射研究与辐射工艺学报》2004年第1期1-7,共7页Journal of Radiation Research and Radiation Processing

基　　金：国家"九五";"十五"重点科技攻关项目支持;专题编号:96-538-01-02;2001BA302B

摘　　要：相对于高能离子,低能离子与物质相互作用较少受到人们的关注,低能离子与生物体相互作用的研究则更少。离子注入生物效应的发现开拓了低能离子束技术在生物学中应用的新领域,形成了一个新的交叉学科——低能重离子生物学。本文介绍了这门新学科的基础和应用研究进展与展望。The interaction between low-energy ions and matter has been concerned rarely comparing to that of high-energy ions. It is even more unusual to find studies of the interaction of low-energy ions and complicated organisms. However, the discovery of bioeffects induced by ion beam implantation has opened a new branch in the field of ion beam applications in the life science—Low-energy Heavy Ion Biology. The mutagenic effect of low energy heavy ions was firstly reported in 1986 in rice. Since then, a damage mechanism involved in energy absorption, mass deposition, and charge exchange has been proposed. Accumulating evidence has indicated that these three factors are key determinants in the bioeffects induced by low energy heavy ions, which has opened new opportunities for mutational breeding, gene transferring, cell modification, and cell fusion. In recent years, the ion beam implantation technique has been widely applied in many fields, and increasing research interest in the field has been seen. In this paper, we summarize recent advances in research on the role of low-energy ions interms of the mechanisms and applications.

关 键 词：低能重离子生物学 离子束 育种技术 辐射 重离子注入 品种改良 基因工程 细胞遗传改良 环境低剂量暴露 

分 类 号：Q691[生物学—生物物理学] TL99[核科学技术—核技术及应用]