Population structure, somatic incompatibility, and sporocarp overwintering in Chondrostereum purpureum
Bibliographic record
Abstract
An investigation was conducted o f the population structure, the somatic incompatibility \nreaction, and sporocarp overwintering in Chondrostereum purpureum (Pers.:Fr.) Pouzar, a \nproposed mycoherbicide of undesirable hardwood species. Chondrostereum purpureum breeding \npopulations o f recent cut-over sites in Thunder Bay, Ontario were found to have a high number of \nindividuals possessing different alleles for somatic incompatibility. Up to nine fungal individuals \nper wood unit (logs, stumps) were found, with the majority of wood units having only one to \nthree individuals. The macroscopic appearance of the somatic incompatibility interaction zone on \nmalt extract agar varied among paired isolates and was occasionally ambiguous. Phenotypic \nvariability of the interaction zone ranged from scant mycelia to massed hyphae between the two \ncolonies. Microscopically the sparse interaction zone had chains of swollen spindle-shaped cells, \nwhile the massed interaction zone had distorted hyphae, encoded hyphae, and hyphal knots. Of \noverwintered sporocarps collected in the spring o f 1998 and 1999, 86% produced viable spores. \nBasidiospore levels in the spring may be greater than once thought, and thus may pose a threat to \nwinter-damaged trees. This should be considered in the assessment of the epidemiology of C. \npurpureum, and in the assessment o f this fungus as a biocontrol agent.
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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".