Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-019-09615-x |
Photochemical alteration of organic carbon draining permafrost soils shifts microbial metabolic pathways and stimulates respiration | |
Ward, Collin P.1,2; Nalven, Sarah G.3; Crump, Byron C.3; Kling, George W.4; Cory, Rose M.1 | |
2019-04-05 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In sunlit waters, photochemical alteration of dissolved organic carbon (DOC) impacts the microbial respiration of DOC to CO2. This coupled photochemical and biological degradation of DOC is especially critical for carbon budgets in the Arctic, where thawing permafrost soils increase opportunities for DOC oxidation to CO2 in surface waters, thereby reinforcing global warming. Here we show how and why sunlight exposure impacts microbial respiration of DOC draining permafrost soils. Sunlight significantly increases or decreases microbial respiration of DOC depending on whether photo-alteration produces or removes molecules that native microbial communities used prior to light exposure. Using high-resolution chemical and microbial approaches, we show that rates of DOC processing by microbes are likely governed by a combination of the abundance and lability of DOC exported from land to water and produced by photochemical processes, and the capacity and timescale that microbial communities have to adapt to metabolize photo-altered DOC. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412133600007 |
WOS关键词 | COMMUNITY COMPOSITION ; HEADWATER STREAM ; BACTERIAL-GROWTH ; SURFACE WATERS ; CLIMATE-CHANGE ; MATTER DOM ; RIVER ; BACTERIOPLANKTON ; DEGRADATION ; THAW |
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/204303 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Michigan, Earth & Environm Sci, Ann Arbor, MI 48109 USA; 2.Woods Hole Oceanog Inst, Marine Chem & Geochem, Woods Hole, MA 02543 USA; 3.Oregon State Univ, Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA; 4.Univ Michigan, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Ward, Collin P.,Nalven, Sarah G.,Crump, Byron C.,et al. Photochemical alteration of organic carbon draining permafrost soils shifts microbial metabolic pathways and stimulates respiration[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Ward, Collin P.,Nalven, Sarah G.,Crump, Byron C.,Kling, George W.,&Cory, Rose M..(2019).Photochemical alteration of organic carbon draining permafrost soils shifts microbial metabolic pathways and stimulates respiration.NATURE COMMUNICATIONS,8. |
MLA | Ward, Collin P.,et al."Photochemical alteration of organic carbon draining permafrost soils shifts microbial metabolic pathways and stimulates respiration".NATURE COMMUNICATIONS 8(2019). |
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