| Phylogenetic relationship and phenotypic comparison of Psychrobacter species isolated from polar oceans |
| |
| 引用本文： | ZENG Yinxin,LI Huirong,YU Yong and CHEN Bo (Key Laboratory for Polar Science of State Oceanic Administration,Polar Research Institute of China,Shanghai 200136,China). Phylogenetic relationship and phenotypic comparison of Psychrobacter species isolated from polar oceans[J]. 自然科学进展(英文版), 2007, 17(1): 44-48 |
| |
| 作者姓名： | ZENG Yinxin LI Huirong YU Yong and CHEN Bo (Key Laboratory for Polar Science of State Oceanic Administration Polar Research Institute of China Shanghai 200136 China) |
| |
| 作者单位： | Key Laboratory for Polar Science of State Oceanic Administration，Polar Research Institute of China，Shanghai 200136，China |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
| |
| 摘 要： | To investigate the phylogenetic relationship and biogeography of bacterioplankton in polar oceans, four Psychrobacter strains, BSw10170, BSw20352, BSw20370, and BSw20461, isolated from seawater of the Beijing Sea, the Chukchi Sea, and the Prydz Bay, were characterized by 16S rDNA sequencing and physiological and biochemical testing. Results demonstrated that close relationships existed between the Arctic and Antarctic strains with sequence similarities higher than 97 %. These four Psychrobacter strains not only showed almost identical phenotypic characteristics among them, but also shared a lot of similarities with those related Psychrobacter species, indicating that psychrotolerance and halotolerance of Psychrobacter strains may be among the reasons for their bipolar, even global distribution in marine environments at the genus level.
|
Phylogenetic relationship and phenotypic comparison of Psychrobacter species isolated from polar oceans |
| |
| ZENG Yinxin,LI Huirong,YU Yong,CHEN Bo. Phylogenetic relationship and phenotypic comparison of Psychrobacter species isolated from polar oceans[J]. Progress in Natural Science, 2007, 17(1): 44-48 |
| |
| Authors: | ZENG Yinxin LI Huirong YU Yong CHEN Bo |
| |
| Abstract: | To investigate the phylogenetic relationship and biogeography of bacterioplankton in polar oceans, four Psychrobacter strains, BSw10170, BSw20352, BSw20370, and BSw20461, isolated from seawater of the Beijing Sea, the Chukchi Sea, and the Prydz Bay, were characterized by 16S rDNA sequencing and physiological and biochemical testing. Results demonstrated that close relationships existed between the Arctic and Antarctic strains with sequence similarities higher than 97 %. These four Psychrobacter strains not only showed almost identical phenotypic characteristics among them, but also shared a lot of similarities with those related Psychrobacter species, indicating that psychrotolerance and halotolerance of Psychrobacter strains may be among the reasons for their bipolar, even global distribution in marine environments at the genus level. |
| |
| Keywords: | Psychrobacter phylogenetic phenotypic Arctic Antarctic |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
