| 一株耐辐射菌的分离与初步鉴定 |
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| 引用本文： | 张志东,茆军,王玮,唐琦勇,石玉瑚.一株耐辐射菌的分离与初步鉴定[J].辐射研究与辐射工艺学报,2008,26(1):43-46. |
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| 作者姓名： | 张志东 茆军 王玮 唐琦勇 石玉瑚 |
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| 作者单位： | 新疆农业科学院微生物研究所,乌鲁木齐,830000 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家微生物资源平台项目
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国家自然科学基金 |
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| 摘 要： | 对新疆古尔班通古特沙漠土样中分离到的一株耐辐射菌RL2进行了多相分类鉴定.结果发现,此菌为革兰氏阳性,球形,菌落为淡红色;菌株的(G C)mol%含量为71.62%;16S rDNA序列分析表明,菌株RL2的16S rDNA基因序列与D.radiodurans DSM20539T同源性最高(97.2%).通过表型及系统进化树分析,确定RL2菌种分类应归于Deinococcus菌属,并可能是该菌属中的-个新种.
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| 关 键 词： | 耐辐射菌 分离 鉴定 耐辐射 分离 strain novel identification 菌属 菌种分类 系统进化树分析 同源性 radiodurans 基因序列 分析表 rDNA 含量 菌株 菌落 阳性 革兰氏 发现 结果 |
| 收稿时间： | 2007-07-06 |
| 修稿时间： | 2007-08-21 |
Isolation and identification of a novel radio-resistant strain |
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| ZHANG Zhidong,MAO Jun,WANG Wei,TANG Qiyong,SHI Yuhu.Isolation and identification of a novel radio-resistant strain[J].Journal of Radiation Research and Radiation Processing,2008,26(1):43-46. |
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| Authors: | ZHANG Zhidong MAO Jun WANG Wei TANG Qiyong SHI Yuhu |
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| Abstract: | A novel radio-resistant strain named RL2 was studied polyphasically, which was isolated from the soils in the Gurban-Tunggut Desert, Xinjiang. The strain is Gam-positive, sphere-shaped and pink pigmented; The DNA (G C) contents of RL2 is 71.62mol%; The 16S rDNA genes of RL2 and D.radiodurans type strain DSM20539 shows a high level of similarity (97.2%). According to phenotypic characteristics and phylogenetic analysis, it can be suggested that the strain RL2 has been identified as Deinococcus.sp and it may be a novel species. |
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| Keywords: | Radio-resistant strain Isolated Identify |
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