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강의 하류지역에서 미생물의 군집이 점진적인 염도의 증가에 따라 변한다는 것을 실험적으로 보기 위하여, 경북 형산강의 하류에서부터 연안해역으로 유입되는 곳까지 약 2.91 km 간격으로 0.02%, 1.48%, 2.63%, 3.62%의 염분을 포함하는 물 시료를 얻어 denaturing gradient gel electrophoresis (DGGE)를 수행하였다. 계통분석, 계통수 및 각 시료간의 연관성을 조사한 결과, 미생물 군집의 변화가 염분의 증가에 따라 점진적으로 변화하는 것을 확인하였으며, 이는 염분의 농도가 미생물 군집에 큰 영향을 미치는 요소임을 제시한다. 덧붙여 연안 지역이나 다른 수계환경에 비해 하류지역은 염분의 점진적인 변화로 인해 좁은 면적에 비하여 미생물 다양성이 크고, 이는 곧 특이하고 새로운 종을 찾기에 좋은 장소임을 시사하였다.
The influence of a gradual increase in salinity on the diversity of aquatic bacterial in rivers was demonstrated. The denaturing gradient gel electrophoresis (DGGE) was used to analyze the bacterial community shift downstream in the Hyeongsan River until it joins the open ocean. Four water samples were taken from the river showing the salinity gradients of 0.02%, 1.48%, 2.63%, and 3.62%. The samples were collected from four arbitrary stations in 2.91 km intervals on average, and a DGGE analysis was performed. Based on the results of this analysis, phylogenetic similarity identification, tree analysis, and a comparison of each station were performed. The results strongly suggested that the response of the bacterial community response was concomitant to gradual changes in salinity, which implies that salt concentration is a major factor in shifting the microbiota in aquatic habitats. The results also imply a huge diversity in a relatively small area upstream from the river mouth, compared to that in open oceans or coastal regions. Therefore, areas downstream towards a river mouth or delta are could be good starting points in the search for new bacterial species and strains (“biotypes”).
The influence of a gradual increase in salinity on the diversity of aquatic bacterial in rivers was demonstrated. The denaturing gradient gel electrophoresis (DGGE) was used to analyze the bacterial community shift downstream in the Hyeongsan River until it joins the open ocean. Four water samples were taken from the river showing the salinity gradients of 0.02%, 1.48%, 2.63%, and 3.62%. The samples were collected from four arbitrary stations in 2.91 km intervals on average, and a DGGE analysis was performed. Based on the results of this analysis, phylogenetic similarity identification, tree analysis, and a comparison of each station were performed. The results strongly suggested that the response of the bacterial community response was concomitant to gradual changes in salinity, which implies that salt concentration is a major factor in shifting the microbiota in aquatic habitats. The results also imply a huge diversity in a relatively small area upstream from the river mouth, compared to that in open oceans or coastal regions. Therefore, areas downstream towards a river mouth or delta are could be good starting points in the search for new bacterial species and strains (“biotypes”).
권호기사
참고문헌 (23건) : 자료제공( 네이버학술정보 )
| 번호 | 참고문헌 | 국회도서관 소장유무 |
|---|---|---|
| 1 | PCR-DGGE fingerprinting: novel strategies for detection of microbes in food  |
미소장 |
| 2 | Role of environmental factors for the vertical distribution (0–1000 m) of marine bacterial communities in the NW Mediterranean Sea |
미소장 |
| 3 | SeaView version 4: A multiplatform graphical user interface for sequence alignment and phylogenetic tree building. |
미소장 |
| 4 | Polycyclic aromatic hydrocarbon degradation by a new marine bacterium, Neptunomonas naphthovorans gen. nov., sp. nov. |
미소장 |
| 5 | Diversity and abundance of freshwater Actinobacteria along environmental gradients in the brackish northern Baltic Sea. |
미소장 |
| 6 | Increases in the abundance of microbial genes encoding halotolerance and photosynthesis along a sediment salinity gradient |
미소장 |
| 7 | Planktonic actinobacterial diversity along a salinity gradient of a river and five lakes on the Tibetan Plateau |
미소장 |
| 8 | Diversity of Marine Microbes by PCR-DGGE | 소장 |
| 9 | Salinity as a structuring factor for the composition and performance of bacterioplankton degrading riverine DOC |
미소장 |
| 10 | Clustal W and Clustal X version 2.0 |
미소장 |
| 11 | Global Patterns in Bacterial Diversity |
미소장 |
| 12 | Ion channels in microbes. |
미소장 |
| 13 | Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA. |
미소장 |
| 14 | DGGE/TGGE a method for identifying genes from natural ecosystems |
미소장 |
| 15 | Variation in bacterial DGGE patterns from human saliva: over time, between individuals and in corresponding dental plaque microcosms |
미소장 |
| 16 | Seasonal and spatial variation of bacterial community structure in river-mouth areas of Gokasho bay, Japan. |
미소장 |
| 17 | Community structures of actively growing bacteria shift along a north‐south transect in the western North Pacific |
미소장 |
| 18 | Xanthogenate nucleic acid isolation from cultured and environmental cyanobacteria |
미소장 |
| 19 | The power of species sorting: local factors drive bacterial community composition over a wide range of spatial scales. |
미소장 |
| 20 | Electrophoresis time impacts the denaturing gradient gel electrophoresis-based assessment of bacterial community structure |
미소장 |
| 21 | Bacterioplankton community composition along a salinity gradient of sixteen high-mountain lakes located on the Tibetan Plateau, China. |
미소장 |
| 22 | Glaciecola agarilytica sp. nov., an agar-digesting marine bacterium from the East Sea, Korea. |
미소장 |
| 23 | Neptunomonas antarctica sp. nov., isolated from marine sediment. |
미소장 |
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