<i>In vitro</i> inhibition of <i>Heterobasidion annosum</i> by <i>Phaeotheca dimorphospora</i>
Bibliographic record
Abstract
The antagonistic fungus Phaeotheca dimorphospora has been tested in vitro on agar plates and wood discs to evaluate its potential use against P (Eastern Canada) and S (Finland) intersterility groups strains of Heterobasidion annosum using two methods. Production of antifungal metabolites by P. dimorphospora was demonstrated on agar plates as well as on Pinus resinosa and Picea abies discs using the bi‐layer technique. Diffusible metabolites inhibited the growth of the pathogen on both substrates. Direct confrontation on wood discs showed that a 7‐day period of advanced growth by P. dimorphospora completely prevented the colonization of the tissue by H. annosum . Control was partial when the antagonist had only one day of advanced growth. Growth inhibition was superior against S group strains with less than 1% of the samples colonized by H. annosum compared with 22% for P group strains. Moreover, P. dimorphospora was isolated in more than 83% of the samples in the absence of the pathogen in both wood species. In vitro tests demonstrated that P. dimorphospora is able to colonize red pine as well as Norway spruce tissue and to use wood components for the production of antifungal metabolites.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".