%0 Journal Article
%T Biological response of Arabidopsis seed to MeV proton irradiation at different region of its embryo<br>拟南芥胚的不同区域对MeV离子辐照的响应
%A Qin Huai-Li
%A Xue Jian-Ming
%A Lai Jiang-Nan
%A Wang Jian-Yong
%A Miao Qi
%A Zhang Wei-Ming
%A Ma Lei
%A Yan Sh
%A Zhao Wei-Jiang
%A Gu Hong-Ya
%A Wang Yu-Gang
%A <br>覃怀莉
%A 薛建明
%A 赖江南
%A 王建勇
%A 苗 琦
%A 张伟明
%A 马 磊
%A 颜 莎
%A 赵渭江
%A 顾红雅
%A 王宇钢
%J 物理学报
%D 2006
%I 
%X The water saturated Arabidopsis seeds were irradiated with protons in air. The ion energy is from 1.1MeV to 6.5MeV. According to TRIM simulation, the damaged region of the seed induced by the incident ions is near the surface region of the embryo, half of the embryo and the whole embryo, respectively. The protons with high energy can damage the shoot apical meristem(SAM) in the embryo while the protons with low energy cannot. The ion fluence used in this experiment was in the range of 4×109 to 1×1014ions/cm2. The experimental results showed that both the germination and survival rates decrease while increasing ion fluence, and the fluence-response curve for different damaged region of the embryo has different characters. Besides SAM, which is generally considered as the main radiobiological target, the existence of a secondary target besides SAM is proposed in this paper.
%K irradiation
%K Arabidopis
%K embryo region
%K biological effect<br>离子辐照
%K 拟南芥
%K 胚区域
%K 生物效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=8BEF9FD332CD8FF6&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=708DD6B15D2464E8&sid=37EB937452F2EFD2&eid=39762E3656E6EDAA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=16