Oceanimonas pelagia sp. nov., a novel biosurfactant producing and plastic-degrading potential bacterium isolated from marine coastal sediment
Bibliographic record
Abstract
Abstract A marine bacterial strain, designated as NTOU-MSR1T, was isolated from the marine sediment of Taiwan's northern coast. This bacterium is Gram-stain-negative, aerobic, and motile. It possesses a single flagellum, and its cells are rod-shaped, with an approximate width of 0.5-0.6 µm and a length of 1.8-2.0 μm. Growth is observed at 10-45℃ with an optimum at 30℃. The pH range for growth is 7.0-10.0, with optimal growth at pH 7.0-8.0. The cells can grow with a concentration of NaCl up to 12%. In the cell membrane, the predominant fatty acids are C16:1ω7c, C18:1ω7c, and C16:0. The overall genome relatedness indices indicate that strain NTOU-MSR1T has an average nucleotide identity (ANI) of 87.88% and a digital DNA-DNA hybridization (dDDH) value of 35.40% with its closest related species, O. marisflavi 102-Na3ᵀ, both values failing below the 95% and 70% species threshold. This indicates that strain NTOU-MSR1T is a novel member belonging to the Oceanimonas genus. The genomic DNA G+C content is 61.0 mol%. Genomic analysis uncovers the presence of genes associated with the catechol branch of β- ketoadipate pathway for polycyclic aromatic hydrocarbons (PAH) degradation, heavy metal resistance, production of poly(hydroxybutyrate)(PHB). In addition, strain NTOU-MSR1T has been found to possess the ability to synthesize biosurfactants and have a potential ability of plastic degradation. A proposed name, Oceanimonas pelagia, was assigned to this novel species, and the type strain of this bacterium was designated as NTOU-MSR1T (=BCRC 81403ᵀ=JCM 36023ᵀ).
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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 | 0.000 | 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 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".