Bibliographic record
Abstract
Abstract Me.thy.lo.cel'la. N.L. pref. methylo pertaining to the methyl radical; L. fem. n. cella a room, and in biology, a cell; N.L. fem. n. Methylocella a methane‐using cell. The genus Methylocella accommodates mildly acidophilic, facultatively methanotrophic bacteria that perform the first step of methane oxidation using only a soluble methane monooxygenase, rather than the more common particulate methane monooxygenase. Cells of these methanotrophs are Gram‐negative, aerobic, non‐motile, polymorphic, slightly curved rods or ovoids, which reproduce by normal cell division and occur singly or in in shapeless aggregates. Cells possess bipolar appearance due to large, highly refractile, intracellular poly‐β‐hydroxybutyrate granules, which form at each cell pole one. An extensive intracytoplasmic membrane system common to most known methanotrophic bacteria is absent from cells. Like other methanotrophs, Methylocella species are capable of growth on methane, methanol, methylamine and formate; C 1 compounds are assimilated via the serine pathway. However, they are also capable of growth on ethanol, some organic acids, ethane, propane and some other multicarbon compounds, but sugars are not utilized. Acetate is preferred over methane, and leads to a downregulation of methane oxidation. These methanotrophs are capable of atmospheric nitrogen fixation under reduced oxygen tension. They are mesophilic and psychrotolerant bacteria, which prefer dilute media of low salt content. The major fatty acid is ω7 c . DNA G + C content is 61.2–63.3 (T m ). Known habitats are acidic and neutral peatlands, soils, and sediments. Type species : Methylocella palustris Dedysh, Liesack, Khmelenina, Suzina, Trotsenko, Semrau, Bares, Panikov, and Tiedje 2000, 967 VP . Taxonomic and Nomenclature Notes According to the List of Prokaryotic names with Standing in Nomenclature (LPSN), the taxonomic status of the genus Methylocella is: correct name (last update, February 2025) * . LPSN classification: Bacteria / Pseudomonadati / Pseudomonadota / Alphaproteobacteria / Hyphomicrobiales / Beijerinckiaceae / Methylocella The genus Methylocella can also be recovered in the Genome Taxonomy Database (GTDB) as g__Methylocella (version v220) ** . GTDB classification: d__Bacteria / p__Pseudomonadota / c__Alphaproteobacteria / o__Rhizobiales / f__Beijerinckiaceae / g__Methylocella * Meier‐Kolthoff et al. ( 2022 ). Nucleic Acids Res , 50 , D801 – D807 ; DOI: 10.1093/nar/gkab902 ** Parks et al. ( 2022 ). Nucleic Acids Res , 50 , D785 – D794 ; DOI: 10.1093/nar/gkab776
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 machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.235 | 0.215 |
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; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".