Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1804351115 |
Primary productivity below the seafloor at deep-sea hot springs | |
McNichol, Jesse1,4; Stryhanyuk, Hryhoriy2; Sylva, Sean P.3; Thomas, Francois1,5; Musat, Niculina2; Seewald, Jeffrey S.3; Sievert, Stefan M.1 | |
2018-06-26 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:26页码:6756-6761 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany; France |
英文摘要 | Below the seafloor at deep-sea hot springs, mixing of geothermal fluids with seawater supports a potentially vast microbial ecosystem. Although the identity of subseafloor microorganisms is largely known, their effect on deep-ocean biogeochemical cycles cannot be predicted without quantitative measurements of their metabolic rates and growth efficiency. Here, we report on incubations of subseafloor fluids under in situ conditions that quantitatively constrain subseafloor primary productivity, biomass standing stock, and turnover time. Single-cell-based activity measurements and 16S rRNA-gene analysis showed that Campylobacteria dominated carbon fixation and that oxygen concentration and temperature drove niche partitioning of closely related phylotypes. Our data reveal a very active subseafloor biosphere that fixes carbon at a rate of up to 321 mu g C.L-1.d(-1), turns over rapidly within tens of hours, rivals the productivity of chemosynthetic symbioses above the seafloor, and significantly influences deep-ocean biogeochemical cycling. |
英文关键词 | deep-sea hydrothermal vents chemosynthesis Campylobacteria ecophysiology NanoSIMS |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436245000078 |
WOS关键词 | SULFUR-OXIDIZING BACTERIA ; HYDROTHERMAL VENTS ; FIXATION ; STOICHIOMETRY ; TEMPERATURE ; VARIABILITY ; BIOSPHERE ; NANOSIMS ; SYSTEMS ; FLUXES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204943 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Woods Hole Oceanog Inst, Biol Dept, Woods Hole, MA 02543 USA; 2.Helmholtz Ctr Environm Res Umweltforschungszentru, Dept Isotope Biogeochem, D-04318 Leipzig, Germany; 3.Woods Hole Oceanog Inst, Marine Chem & Geochem Dept, Woods Hole, MA 02543 USA; 4.Univ Southern Calif, Dept Biol Sci, Los Angeles, CA 90089 USA; 5.Sorbonne Univ, Stn Biolog Roscoff, Integrat Biol Marine Models LBI2M, CNRS, F-29680 Roscoff, France |
推荐引用方式 GB/T 7714 | McNichol, Jesse,Stryhanyuk, Hryhoriy,Sylva, Sean P.,et al. Primary productivity below the seafloor at deep-sea hot springs[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(26):6756-6761. |
APA | McNichol, Jesse.,Stryhanyuk, Hryhoriy.,Sylva, Sean P..,Thomas, Francois.,Musat, Niculina.,...&Sievert, Stefan M..(2018).Primary productivity below the seafloor at deep-sea hot springs.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(26),6756-6761. |
MLA | McNichol, Jesse,et al."Primary productivity below the seafloor at deep-sea hot springs".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.26(2018):6756-6761. |
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