Reference - Detail
| RRC ID | 88996 |
|---|---|
| Author | Katayama T, Yoshioka H, Nobu MK. |
| Title | High-pressure Methanogenesis Reveals Metabolic Adaptation to Dissolved CO2 Limitation. |
| Journal | 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. |
| Volume | 40(4) |
| Published | 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 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 8 |
| Altmetric score changes over past 6months | 1.8 |
| Resource | |
| General Microbes | JCM39199 |