The conservation of<i>Ustilago tritici</i>in infected seed
Bibliographic record
Abstract
Traditional methods of maintaining strains of Ustilago tritici over long periods of time consume large amounts of labour and physical resources, with variable results. These methods generally involve the storage of teliospores of each isolate at temperatures of 2–4 oC. Very little long-term work has been conducted on the survival of mycelium of U. tritici in infected host seed. Our objective was to determine the survival of race T2 of U. tritici as mycelium in infected wheat seed stored at –15 oC for up to 32 years. There was a significant decline in the per cent viability of the inoculated wheat seed over time. Conversely, there was a significant increase in the per cent infection of the viable seed over time. This suggests that either the cold treatment enhances the survival of the mycelium of the pathogen, or the fungus enhances the survival of the wheat seed at low temperatures. Storage of U. tritici as mycelium in infected seed at –15 oC is an effective technique for long-term preservation of this pathogen.
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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) | 0.000 | 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) | 0.001 | 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".