Glaciihabitans arcticus sp. nov., a psychrotolerant bacterium isolated from Arctic soil
Bibliographic record
Abstract
A non-motile, Gram-stain-positive, rod-shaped bacterium, designated RP-3-7T, was isolated from soil sampled at the Arctic region in Cambridge Bay, NU, Canada. Cells were strictly aerobic, non-spore-forming, catalase-positive and oxidase-positive. Colonies on Reasoner's 2A agar plates were pale yellow-coloured. Strain RP-3-7T was psychrotolerant and grew optimally at 15–20 °C. Strain RP-3-7T assimilated d-glucose, d-mannitol, l-arabinose and l-proline; tolerated only 0.5 % NaCl (w/v). Phylogenetic analysis based on its 16S rRNA gene sequence revealed that strain RP-3-7T formed a lineage within the family Microbacteriaceae and clustered with members of the genus Glaciihabitans . The closest member was Glaciihabitans tibetensis MP203T (98.26 % sequence similarity). The major respiratory quinone was MK-10. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid. The major cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0, anteiso-C17 : 0 and anteiso-C15 : 1 A. The diagnostic amino acid was 2,4-diaminobutyric acid and whole-cell sugars were xylose, rhamnose and mannose. The DNA G+C content of strain RP-3-7T was 66.9 mol%. The average nucleotide identity and in silico DNA–DNA relatedness values between strain RP-3-7T and Glaciihabitans tibetensis MP203T were 73.79 and 20.1 %, respectively. Based on the polyphasic, genomic and phylogenetic data, strain RP-3-7T represents a novel species of the genus Glaciihabitans , for which the name Glaciihabitans arcticus sp. nov. is proposed. The type strain is RP-3-7T (=KEMB 9005-731T=KACC 21151T=NBRC 113769T).
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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) | 0.000 | 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 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".