Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2019229118 |
Aerobic bacterial methane synthesis | |
Qian Wang; Abdullah Alowaifeer; Patricia Kerner; Narayanaganesh Balasubramanian; Angela Patterson; William Christian; Angela Tarver; John E. Dore; Roland Hatzenpichler; Brian Bothner; Timothy R. McDermott | |
2021-07-06 | |
发表期刊 | Proceedings of the National Academy of Sciences |
出版年 | 2021 |
英文摘要 | Reports of biogenic methane (CH4) synthesis associated with a range of organisms have steadily accumulated in the literature. This has not happened without controversy and in most cases the process is poorly understood at the gene and enzyme levels. In marine and freshwater environments, CH4 supersaturation of oxic surface waters has been termed the “methane paradox” because biological CH4 synthesis is viewed to be a strictly anaerobic process carried out by O2-sensitive methanogens. Interest in this phenomenon has surged within the past decade because of the importance of understanding sources and sinks of this potent greenhouse gas. In our work on Yellowstone Lake in Yellowstone National Park, we demonstrate microbiological conversion of methylamine to CH4 and isolate and characterize an Acidovorax sp. capable of this activity. Furthermore, we identify and clone a gene critical to this process (encodes pyridoxylamine phosphate-dependent aspartate aminotransferase) and demonstrate that this property can be transferred to Escherichia coli with this gene and will occur as a purified enzyme. This previously unrecognized process sheds light on environmental cycling of CH4, suggesting that O2-insensitive, ecologically relevant aerobic CH4 synthesis is likely of widespread distribution in the environment and should be considered in CH4 modeling efforts. |
领域 | 资源环境 |
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/333968 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Qian Wang,Abdullah Alowaifeer,Patricia Kerner,et al. Aerobic bacterial methane synthesis[J]. Proceedings of the National Academy of Sciences,2021. |
APA | Qian Wang.,Abdullah Alowaifeer.,Patricia Kerner.,Narayanaganesh Balasubramanian.,Angela Patterson.,...&Timothy R. McDermott.(2021).Aerobic bacterial methane synthesis.Proceedings of the National Academy of Sciences. |
MLA | Qian Wang,et al."Aerobic bacterial methane synthesis".Proceedings of the National Academy of Sciences (2021). |
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