論文 - 詳細
| RRC ID | 88996 |
|---|---|
| 著者 | Katayama T, Yoshioka H, Nobu MK. |
| タイトル | High-pressure Methanogenesis Reveals Metabolic Adaptation to Dissolved CO2 Limitation. |
| ジャーナル | Microbes Environ |
| Abstract |
This study investigated the effects of elevated hydrostatic pressure on methane production and gene expression in a hydrogenotrophic methanogen isolated from subseafloor sediments at biogenic gas hydrate sites, with a focus on the implications of CO2 availability. Using high-pressure cultivation, the methane production rate decreased by 15% at 25 MPa, while a transcriptomic anal-ysis revealed the marked up-regulation of methyl-coenzyme M reductase and ATP synthase. These results suggest that methanogens compensate for pressure-driven constraints on CO2 utilization by increasing the expression of key methanogenic enzymes, underscoring the overlooked role of CO2 in deep biosphere microbial processes. |
| 巻・号 | 40(4) |
| 公開日 | 2025-1-1 |
| DOI | 10.1264/jsme2.ME25066 |
| PMID | 41391850 |
| PMC | PMC12727201 |
| MeSH | Adaptation, Physiological* Carbon Dioxide* / metabolism Gene Expression Profiling Geologic Sediments / microbiology Hydrostatic Pressure Methane* / biosynthesis Methane* / metabolism Oxidoreductases / genetics Oxidoreductases / metabolism |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 8 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 1.8 |
| リソース情報 | |
| 一般微生物 | JCM39199 |