%0 Journal Article
%T Cadmium-induced root growth inhibition is mediated by hydrogen peroxide production in root tip of Arabidopsis<br>镉诱导拟南芥根尖过氧化氢积累导致植物根生长抑制
%A ZHANG Si-Nan
%A GAO Pei-Yao
%A XIE Qing-En
%A ZHAO Xu-Hua
%A LI Xia
%A <br>张司南
%A 高培尧
%A 谢庆恩
%A 赵旭华
%A 李霞
%J 中国生态农业学报
%D 2010
%I 
%X Arabidopsis was used as a model plant and the young seedling root response to Cd stress investigated. The study shows that increasing concentrations of Cd inhibits root elongation. Both the meristematic and elongation zones are severely truncated, suggesting some degree of impact on cell division and elongation. Plant roots die under Cd overdose. DAB staining analysis shows hydrogen peroxide (H2O2) accumulation in root tips when seedlings are treated with Cd. Furthermore, vitamin C (Vc) dramatically increases seedling tolerance to Cd treatment. Put together, the results demonstrate that Cd-inhibited root growth is likely caused by reduced meristematic and elongation cell division, mediated by ROS (reactive oxygen species) production.
%K Arabidopsis thaliana
%K Cadmium
%K Root growth
%K Vitamin C
%K Hydrogen peroxide<br>拟南芥
%K 镉
%K 根生长
%K 维生素C
%K 过氧化物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=6DBE8D2E32FF5BBE6919AB130FDB6956&yid=140ECF96957D60B2&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=58F693790F887B3B&eid=B0EBA60720995721&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=1&reference_num=27