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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0116271
论文题名:	Pyrosequencing Revealed SAR116 Clade as Dominant dddP-Containing Bacteria in Oligotrophic NW Pacific Ocean
作者:	Dong Han Choi; Ki-Tae Park; Sung Min An; Kitack Lee; Jang-Cheon Cho; Jung-Hyun Lee; Dongseon Kim; Dongchull Jeon; Jae Hoon Noh
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-1-23
卷:	10, 期:1
语种:	英语
英文关键词:	Polymerase chain reaction ; Oceans ; Lyases ; Phylogenetic analysis ; Pacific Ocean ; Marine bacteria ; Phylogeography ; Protein sequencing
英文摘要:	Dimethyl sulfide (DMS) is a climatically active gas released into the atmosphere from oceans. It is produced mainly by bacterial enzymatic cleavage of dimethylsulfoniopropionate (DMSP), and six DMSP lyases have been identified to date. To determine the biogeographical distribution of bacteria relevant to DMS production, we investigated the diversity of dddP—the most abundant DMS-producing gene—in the northwestern Pacific Ocean using newly developed primers and the pyrosequencing method. Consistent with previous studies, the major dddP-containing bacteria in coastal areas were those belonging to the Roseobacter clade. However, genotypes closely related to the SAR116 group were found to represent a large portion of dddP-containing bacteria in the surface waters of the oligotrophic ocean. The addition of DMSP to a culture of the SAR116 strain Candidatus Puniceispirillum marinum IMCC1322 resulted in the production of DMS and upregulated expression of the dddP gene. Considering the large area of oligotrophic water and the wide distribution of the SAR116 group in oceans worldwide, we propose that these bacteria may play an important role in oceanic DMS production and biogeochemical sulfur cycles, especially via bacteria-mediated DMSP degradation.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0116271&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21065
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0116271.PDF（2774KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Marine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;Department of Marine Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea;School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Korea;Marine Ecosystem Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Korea;Division of Biology and Ocean Sciences, Inha University, Incheon, Republic of Korea;Marine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;Department of Marine Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea;Ocean Circulation and Climate Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;Ocean Circulation and Climate Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;Marine Ecosystem Research Division, Korea Institute of Ocean Science and Technology, Ansan, Republic of Korea;Department of Marine Biology, Korea University of Science and Technology, Daejeon, Republic of Korea

Recommended Citation:

Dong Han Choi,Ki-Tae Park,Sung Min An,et al. Pyrosequencing Revealed SAR116 Clade as Dominant dddP-Containing Bacteria in Oligotrophic NW Pacific Ocean[J]. PLOS ONE,2015-01-01,10(1)

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