<i>Fervidobacterium Emendation</i>
Bibliographic record
Abstract
Abstract Fer.vi.do.bac.te'ri.um. L. masc. adj. fervidus hot: Gr. neut. n. bakterion a small rod: N.L. neut. n. Fervidobacterium a rod that grow at higher temperatures. The genus Fervidobacterium is currently composed of seven described species ( Fervidobacterium changbaicum , Fervidobacterium gondwanense , Fervidobacterium islandicum , Fervidobacterium nodosum , Fervidobacterium pennivorans , Fervidobacterium riparium , and Fervidobacterium thailandense ). They are members of the phylum Thermotogota , class Thermotogae , order Thermotogales , and family Fervidobacteriaceae . Similar to other Thermotogota , Fervidobacterium spp. are obligately anaerobic heterotrophs . They are thermophilic or hyperthermophilic , with optimum growth temperature of 60–80°C and optimal pH of 6.5–7.8. However, unlike other described Thermotogota , Fervidobacterium spp. grow only at low salinity (0–0.5% NaCl). Sulfur is reduced to H 2 S and stimulates growth, while molecular hydrogen inhibits growth. The cells are Gram‐negative rods and occur individually, in pairs, in filaments, in chains of up to 17 cells in one chain, or as spherical rotund bodies where 10 or more cells share an outer membrane. The majority of the individual cells produce terminal protuberances on one end of the cell (spheroids). Cells size about 0.4–0.6 × 1–40 μm. The cells are sensitive to inhibitors of cell‐wall, protein, and nucleic acid biosynthesis. Known habitats are terrestrial geothermal systems. The genus has also been detected in several types of anthropogenic environments: oil sands, tailing ponds, effluent of pulp and paper industry, and thermophilic microbial fuel cells. Several isolates have important uses in biotechnology; for instance, keratinophilic isolates are known to degrade feathers. DNA G + C content (mol%) : 35–45.8. Type species : Fervidobacterium nodosum Patel et al. 1985, VL19. Taxonomic and Nomenclature Notes According to the List of Prokaryotic names with Standing in Nomenclature (LPSN), the taxonomic status of the genus Fervidobacterium is: correct name (last update, February 2025) * . LPSN classification: Bacteria / Thermotogati / Thermotogota / Thermotogae / Thermotogales / Fervidobacteriaceae / Fervidobacterium The genus Fervidobacterium can also be recovered in the Genome Taxonomy Database (GTDB) as g__Fervidobacterium (version v220) ** . GTDB classification: d__Bacteria / p__Thermotogota / c__Thermotogae / o__Thermotogales / f__Fervidobacteriaceae / g__Fervidobacterium * Meier‐Kolthoff et al. ( 2022 ). Nucleic Acids Res , 50 , D801
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".