<em>Brevundimonas aurifodinae</em>, sp. nov., an Aerobic Anoxygenic Phototroph Resistant to Metalloid Oxyanions Isolated from Gold Mine Tailings
Bibliographic record
Abstract
A polyphasic taxonomic study was carried out on the rod-shaped, orange pigmented strain C11T, isolated from gold mine tailings. Sequencing of the 16S rRNA gene showed relatedness to Brevundimonas, with 98.4 % and 98.2 % similarity to Brevundimonas bacteroides and Brevundimonas variabilis, respectively. Average nucleotide identity and digital DNA–DNA hybridization with the closest phylogenetic neighbor of C11T indicates distinction at the species level, further confirmed by differences in physiology. C18:1 ω7c is the dominant cellular fatty acid. DNA G + C content is 68.3 mol %. The predominant ubiquinone is Q-10; 1,2-Di-O-acyl-3-O-α-D-glucopyranuronosyl glycerol, phosphatidylglycerol, 1,2-di-O-acyl-3-O-α-D-glucopyranosyl glycerol and 1,2-di-O-acyl-3-O-[D-glucopyranosyl-(1->4)-α-D-glucopyranuronosyl] glycerol are the major polar lipid constituents. This bacterium produces bacteriochlorophyll a and tolerates high concentrations of (μg/mL): tellurium (>1500), selenium (1000 to >5000), and vanadium (>5000) oxyanions. Data supports the inclusion of C11T into the genus Brevundimonas as a new species with the proposed name Brevundimonas aurifodinae sp. nov., (C11T = NRRL B-61758T; = DSM 118059T).
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.002 |
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".