Phylogenetic diversity of bacteria isolates from the Qinghai-Tibet Plateau permafrost region
文献类型：期刊论文
| 作者 | Zhang, Gaosen; Niu, Fujun; Ma, Xiaojun; Liu, We; Dong, Maoxing; Feng, Huyuan; An, Lizhe; Cheng, Guodong |
| 刊名 | CANADIAN JOURNAL OF MICROBIOLOGY
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 53期号:8页码:1000-1010 |
| 关键词 | culturable microorganism dynamics extreme environments high altitude permafrost permafrost degradation microbial diversity |
| ISSN号 | 0008-4166 |
| DOI | 10.1139/W07-031 |
| 通讯作者 | Feng, Huyuan(fenghy@lzu.edu.cn) |
| 英文摘要 | The Qinghai-Tibet Plateau in east Asia is a unique and important permafrost environment. However, its microbiology remains largely unexplored to date. In this study, sediment samples were collected from the Qinghai-Tibet Plateau permafrost region, bacteria isolation procedures were performed 8 times, and the samples incubated at 4 degrees C for nearly 3 months. The number of colony forming units (cfu) ranged from 0 to 10(7)/(g dry soil). The quantity of culturable bacteria grew exponentially within the first few weeks, and then slowed gradually to a plateau. Phylogenetic analyses indicated that all the isolates fell into 6 categories: high G+C Gram-positive bacteria, low G+C Gram-positive bacteria, alpha-Proteobacteria, beta-Proteobacteria, gamma-Proteobacteria, and Cytophaga-Flavobacterium-Bacteroides group bacteria. The isolates belong to 19 genera, but the genera Arthrobacter and Pseudomonas were predominant. With the increase in incubation time, the isolated populations changed in terms of both species and their respective quantities. Of the 33 analyzed isolates, 9 isolates related to 8 genera might be new taxa. These results suggest that the Qinghai-Tibet Plateau permafrost region is a specific ecologic niche that accommodates an original microbial assemblage. |
| 收录类别 | SCI |
| WOS关键词 | HIGH-ALTITUDE PERMAFROST ; SIBERIAN PERMAFROST ; CHINA ; SOIL ; FERTILIZATION ; STRATEGIES ; TAXONOMY ; DNA |
| WOS研究方向 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology |
| WOS类目 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000249947000009 |
| 出版者 | NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555979 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Feng, Huyuan |
| 作者单位 | 1.Lanzhou Univ, Minist Educ, Key Lab Arid & Grassland Agrioecol, Sch Life Sci, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Gaosen,Niu, Fujun,Ma, Xiaojun,et al. Phylogenetic diversity of bacteria isolates from the Qinghai-Tibet Plateau permafrost region[J]. CANADIAN JOURNAL OF MICROBIOLOGY,2007,53(8):1000-1010. |
| APA | Zhang, Gaosen.,Niu, Fujun.,Ma, Xiaojun.,Liu, We.,Dong, Maoxing.,...&Cheng, Guodong.(2007).Phylogenetic diversity of bacteria isolates from the Qinghai-Tibet Plateau permafrost region.CANADIAN JOURNAL OF MICROBIOLOGY,53(8),1000-1010. |
| MLA | Zhang, Gaosen,et al."Phylogenetic diversity of bacteria isolates from the Qinghai-Tibet Plateau permafrost region".CANADIAN JOURNAL OF MICROBIOLOGY 53.8(2007):1000-1010. |
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来源：寒区旱区环境与工程研究所
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