Bibliographic record
Abstract
Abstract Methanotrophy is the ability of a few prokaryotes to grow on methane as a sole energy source. Aerobic methanotrophic bacteria are active in natural environments with pH values ranging from 1 to 11, temperatures ranging from 0 to 72°C and salinities up to 30%. In addition, anaerobic methanotrophs are found in permanently cold ocean sediments at temperatures down to −1°C, and in geothermally heated sediments at temperatures up to 90°C. Several extremophilic species of aerobic methanotrophs have been isolated and studied in pure culture, including thermophiles, psychrophiles, acidophiles, alkaliphiles and halophiles. The knowledge of methanotrophs and their ecology in extreme environments is summarized, with particular attention on bacteria with multiple extremophilic phenotypes that are found in acidic subarctic peatlands and in acidic geothermal springs. Key concepts Methane is oxidized by prokaryotes in diverse environments, including some with extreme temperatures, pH values and salinities. The ecology of extremophilic methanotrophs has been studied using cultivation‐independent molecular methods. Extremophilic aerobic methanotrophs have been isolated and studied in pure culture, but anaerobic methanotrophs have not yet been isolated. Some aerobic methanotrophs combine multiple extremophilic phenotypes. Biogeochemical and molecular ecology studies suggest that sulphate‐reducing methanotrophs are capable of living under a similar range of temperatures as are aerobic methanotrophs.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.021 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".