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A snapshot on spatial and vertical distribution of bacterial communities in the eastern Indian Ocean
Wang Jing; Kan Jinjun; Borecki Laura; Zhang Xiaodong; Wang Dongxiao; Sun Jun; Sun, J (reprint author), Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin 300457, Peoples R China.; Sun, J (reprint author), Tianjin Univ Sci & Technol, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China.
2016
Source PublicationACTA OCEANOLOGICA SINICA
Volume35Issue:6Pages:85-93
AbstractBesides being critical components of marine food web, microorganisms play vital roles in biogeochemical cycling of nutrients and elements in the ocean. Currently little is known about microbial population structure and their distributions in the eastern Indian Ocean. In this study, we applied molecular approaches including polymerase chain reaction-denaturant gradient gel electrophoresis (PCR-DGGE) and High-Throughput next generation sequencing to investigate bacterial 16S rRNA genes from the equatorial regions and the adjacent Bay of Bengal in the eastern Indian Ocean. In general, Bacteroidetes, Proteobacteria (mainly Alpha, and Gamma), Actinobacteria, Cyanobacteria and Planctomycetes dominated the microbial communities. Horizontally distinct spatial distribution of major microbial groups was observed from PCR-DGGE gel image analyses. However, further detailed characterization of community structures by pyrosequencing suggested a more pronounced stratified distribution pattern: Cyanobacteria and Actinobacteria were more predominant at surface water (25 m); Bacteroidetes dominated at 25 m and 150 m while Proteobacteria (mainly Alphaproteobacteria) occurred more frequently at 75 m water depth. With increasing water depth, the bacterial communities from different locations tended to share high similarity, indicating a niche partitioning for minor groups of bacteria recovered with high throughput sequencing approaches. This study provided the first "snapshot" on biodiversity and spatial distribution of Bacteria in water columns in the eastern Indian Ocean, and the findings further emphasized the potential functional roles of these microbes in energy and resource cycling in the eastern Indian Ocean.
Department[Wang Jing; Zhang Xiaodong; Sun Jun] Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin 300457, Peoples R China; [Wang Jing; Zhang Xiaodong; Sun Jun] Tianjin Univ Sci & Technol, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China; [Kan Jinjun; Borecki Laura] Stroud Water Res Ctr, Avondale, PA 19311 USA; [Wang Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China ; LTO
KeywordEastern Indian Ocean Water Column Bacterial Community Pyrosequencing
Subject AreaOceanography
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15359
Collection热带海洋环境国家重点实验室(LTO)
Corresponding AuthorSun, J (reprint author), Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin 300457, Peoples R China.; Sun, J (reprint author), Tianjin Univ Sci & Technol, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China.
Recommended Citation
GB/T 7714
Wang Jing,Kan Jinjun,Borecki Laura,et al. A snapshot on spatial and vertical distribution of bacterial communities in the eastern Indian Ocean[J]. ACTA OCEANOLOGICA SINICA,2016,35(6):85-93.
APA Wang Jing.,Kan Jinjun.,Borecki Laura.,Zhang Xiaodong.,Wang Dongxiao.,...&Sun, J .(2016).A snapshot on spatial and vertical distribution of bacterial communities in the eastern Indian Ocean.ACTA OCEANOLOGICA SINICA,35(6),85-93.
MLA Wang Jing,et al."A snapshot on spatial and vertical distribution of bacterial communities in the eastern Indian Ocean".ACTA OCEANOLOGICA SINICA 35.6(2016):85-93.
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