Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085872 |
Microbial Methane From Methylphosphonate Isotopically Records Source | |
Taenzer, L.1,2; Carini, P. C.3; Masterson, A. M.4; Bourque, B.3; Gaube, J. H.1; Leavitt, W. D.1,5,6 | |
2020-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Methane is a potent greenhouse gas commonly supersaturated in the oxic surfaces waters of oceans and lakes, yet canonical microbial methanogens are obligate anaerobes. One proposed methane production pathway involves microbial degradation of methylphosphonate (MPn), which can proceed in the presence of oxygen. Directly tracing dissolved methane to its source in oxic waters, however, remains a challenge. To address this knowledge gap, we quantified the carbon isotopic fractionation between substrate MPn and product methane (1.3 parts per thousand) in lab experiments, which was 1 to 2 orders of magnitude smaller than canonical pathways of microbial methanogenesis (20 to 100 parts per thousand). Together, these results indicated that microbial catabolism of MPn is a source of methane in surface oceans and lake waters, but to differentiate sources of MPn in nature a further accounting of all sources is necessary. Methane from this pathway must be considered in constraining the marine carbon cycle and methane budget. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000513983400041 |
WOS关键词 | CARBON-ISOTOPE FRACTIONATION ; ANAEROBIC OXIDATION ; SULFATE REDUCTION ; ACETOCLASTIC METHANOGENESIS ; METHANOSARCINA-BARKERI ; MARINE ; BACTERIA ; PHOSPHORUS ; RATES ; ACID |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/279495 |
专题 | 气候变化 |
作者单位 | 1.Dartmouth Coll, Dept Earth Sci, Hanover, NH 03755 USA; 2.Woods Hole Oceanog Res Inst, Falmouth, MA USA; 3.Univ Arizona, Dept Environm Sci, Tucson, AZ USA; 4.Northwestern Univ, Dept Earth & Planetary Sci, Evanston, IL USA; 5.Dartmouth Coll, Dept Biol Sci, Hanover, NH 03755 USA; 6.Dartmouth Coll, Dept Chem, Hanover, NH 03755 USA |
推荐引用方式 GB/T 7714 | Taenzer, L.,Carini, P. C.,Masterson, A. M.,et al. Microbial Methane From Methylphosphonate Isotopically Records Source[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(1). |
APA | Taenzer, L.,Carini, P. C.,Masterson, A. M.,Bourque, B.,Gaube, J. H.,&Leavitt, W. D..(2020).Microbial Methane From Methylphosphonate Isotopically Records Source.GEOPHYSICAL RESEARCH LETTERS,47(1). |
MLA | Taenzer, L.,et al."Microbial Methane From Methylphosphonate Isotopically Records Source".GEOPHYSICAL RESEARCH LETTERS 47.1(2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论