%0 Journal Article
%T Isolation, Molecular Characterization and Resistance Mechanism Study on a Cadmium Hyperresistant Bacillus cereus<br>强抗镉蜡状芽孢杆菌的分离鉴定及其抗性机理
%A HU Qing
%A QI Hong-yan
%A DOU Min-na
%A ZHANG Hong-xun
%A <br>呼庆
%A 齐鸿雁
%A 窦敏娜
%A 张洪勋
%J 环境科学
%D 2007
%I 
%X A Gram-positive, aerobic, motile, spore-forming bacterium was isolated from a Pb-Zn mine tailing at suburb of Beijing City. The bacterial strain isolated could resist cadmium efficiently and it was able to grow well on media plates containing 1?000 mg/L cadmium. The DNA G + C content were found to be 60%. Phylogenetic analysis of the 16S rRNA gene revealed that this isolate was a member of the genus Bacillus. Two growth curves about this strain were drawn on media with and without cadmium. This strain harbors a plasmid putatively bearing essential cadmium resistant genes as demonstrated by a plasmid elimination experiment. The results of this study indicate that this strain has a better potential for cadmium resistance compared to other reports. The physiological characterization of the isolates also indicates the possible application of this strain for bioremediation of sites contaminated with cadmium.
%K cadmium
%K resistant plasmid
%K Bacillus cereus<br>镉
%K 抗性质粒
%K 蜡状芽孢杆菌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=76EF48C0955E5E849EA2F2DB77BD1B64&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=CB3428B1EFB1C133&eid=389DA78D878702A9&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=11