| The POM-DOM piezophilic microorganism continuum(PDPMC)—The role of piezophilic microorganisms in the global ocean carbon cycle |
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| 作者姓名： | FANG JiaSong ZHANG Li LI Jiang Tao Chiaki KATO Christian TAMBURINI ZHANG YuZhong DANG HongYue WANG GuangYi WANG FengPing |
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| 作者单位： | State Key Laboratory of Marine Geology,School of Ocean and Earth Science,Tongji University;Department of Natural Sciences,Hawaii Pacific University;State Key Laboratory of Geological Processes and Mineral Resources,Faculty of Earth Sciences,China University of Geosciences;Institute of Biogeoscience Japan Agency for Marine-Earth Science and Technology (JAMSTEC) 2-15 Natsushima-cho;Aix Marseille Université,CNRS;Université de Toulon,IRD;State Key Laboratory of Microbial Technology,Shandong University;State Key Laboratory of Marine Environmental Sciences Institute of Marine Microbes and Ecospheres,Xiamen University;Center for Marine Ecology and Environmental Research,Tianjin University;State Key Laboratory of Microbial Metabolism and State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University |
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| 基金项目： | supported by the National Natural Science Foundation of China(Grant Nos.91328208,41240039,41373071);the Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.201200-72110026) |
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| 摘 要： | The deep ocean piezosphere accounts for a significant part of the global ocean,hosts active and diverse microbial communities which probably play a more important role than hitherto recognized in the global ocean carbon cycle.The conventional biological pump concept and the recently proposed microbial carbon pump mechanism provide a foundation for our understanding of the role of microorganisms in cycling of carbon in the ocean.However,there are significant gaps in our knowledge and a lack of mechanistic understanding of the processes of microbially-mediated production,transformation,degradation,and export of marine dissolved and particulate organic matter(DOM and POM)in the deep ocean and the ecological consequence.Here we propose the POM-DOM piezophilic microorganism continuum(PDPMC)conceptual model,to address these important biogeochemical processes in the deep ocean.We propose that piezophilic microorganisms(bacteria and archaea)play a pivotal role in deep ocean carbon cycle where microbial production of exoenzymes,enzymatic breakdown of DOM and transformation of POM fuels the rapid cycling of marine organic matter,and serve as the primary driver for carbon cycle in the deep ocean.
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| 关 键 词： | carbon cycle deep ocean DOM PDPMC piezophilic microorganisms POM |
The POM-DOM piezophilic microorganism continuum(PDPMC)—The role of piezophilic microorganisms in the global ocean carbon cycle |
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| FANG JiaSong,ZHANG Li,LI Jiang Tao,Chiaki KATO,Christian TAMBURINI,ZHANG YuZhong,DANG HongYue,WANG GuangYi,WANG FengPing.The POM-DOM piezophilic microorganism continuum(PDPMC)—The role of piezophilic microorganisms in the global ocean carbon cycle[J].Science China Earth Sciences,2015(1):106-115. |
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| Authors: | FANG JiaSong;ZHANG Li;LI Jiang Tao;Chiaki KATO;Christian TAMBURINI;ZHANG YuZhong;DANG HongYue;WANG GuangYi;WANG FengPing;State |
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| Institution: | Key Laboratory of Marine Geology,School of Ocean and Earth Science,Tongji University;Department of Natural Sciences,Hawaii Pacific University;State Key Laboratory of Geological Processes and Mineral Resources,Faculty of Earth Sciences,China University of Geosciences;Institute of Biogeoscience Japan Agency for Marine-Earth Science and Technology (JAMSTEC) 2-15 Natsushima-cho;Aix Marseille Université,CNRS,Université de Toulon,IRD;State Key Laboratory of Microbial Technology,Shandong University;State Key Laboratory of Marine Environmental Sciences Institute of Marine Microbes and Ecospheres,Xiamen University;Center for Marine Ecology and Environmental Research,Tianjin University;State Key Laboratory of Microbial Metabolism and State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University; |
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| Abstract: | The deep ocean piezosphere accounts for a significant part of the global ocean,hosts active and diverse microbial communities which probably play a more important role than hitherto recognized in the global ocean carbon cycle.The conventional biological pump concept and the recently proposed microbial carbon pump mechanism provide a foundation for our understanding of the role of microorganisms in cycling of carbon in the ocean.However,there are significant gaps in our knowledge and a lack of mechanistic understanding of the processes of microbially-mediated production,transformation,degradation,and export of marine dissolved and particulate organic matter(DOM and POM)in the deep ocean and the ecological consequence.Here we propose the POM-DOM piezophilic microorganism continuum(PDPMC)conceptual model,to address these important biogeochemical processes in the deep ocean.We propose that piezophilic microorganisms(bacteria and archaea)play a pivotal role in deep ocean carbon cycle where microbial production of exoenzymes,enzymatic breakdown of DOM and transformation of POM fuels the rapid cycling of marine organic matter,and serve as the primary driver for carbon cycle in the deep ocean. |
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