Genomics of Ammonia-Oxidizing Bacteria and Insights into Their Evolution
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This chapter talks about ammonium-oxidizing bacteria (AOB), addresses the inventory involved in nitrification, attempts metabolic reconstruction of N transformation processes, and provides insights into their evolution. The AOB oxidizes ammonia aerobically as their sole source of energy and reductant belong taxonomically to two monophyletic groups in different proteobacterial classes. amoA-encoding archaea (AEA) is capable of being classified as obligate, ammonia-co-oxidizing mixotrophs, or chemoorganotrophs with nonfunctional amo genes in their genomes. While the anaerobic oxidation of methane by NC10 is coupled to denitrification, it is not yet clear whether the oxidation of ammonia is coupled to nitrite reduction. Ammonification, the production of ammonium from other nitrogen compounds, likely existed within early bacteria and archaea as a consequence of simple fermentations; however, these internal cycles did not likely increase net NH4 +/NH3 availability. The core hydroxylamine ubiquinone redox module (HURM) genes are encoded by a conserved gene cluster, hao-orf2-cycAB, in all AOB. Complete sequences of the genes encoding the HURM proteins had been published from several AOB prior to obtain genome sequences and the protein structures of HAO and c554 have since been resolved.
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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) | 0.000 | 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 it