The significance of volatile antifungal metabolites produced by trichomerma harzianum biotype Th4, in green-mould disease of commercial mushroom crops /
Bibliographic record
Abstract
The aggressive mushroom competitor, Trichoderma harzianum biotype Th4, \nproduces volatile antifungal secondary metabolites both in culture and during the \ndisease cycle in compost. Th4 cultures produced one such compound only when \ncultured in the presence of Agaricus bisporus mycelium or liquid medium made \nfrom compost colonised with A. bisporus. This compound has TLC and UVabsorption \nand characteristics indicating that it belongs to a class of pyrone \nantibiotics characterised from other T. harzianum biotypes. UV absorption spectra \nindicated this compound was not 6-pentyl-2H-pyran-one (6PAP), the volatile \nantifungal metabolite widely described in Th1. Furthermore, this compound was \nnot produced by Th1 under any culture conditions. Mycelial growth of A. bisporus, \nBotrytis cinerea and Sclerotium cepivorum was inhibited in the presence of this \ncompound through volatility , diffusion and direct application. This indicates that \nTh4 produces novel, volatile, antifungal metabolites in the presence of A. bisporus \nthat are likely involved in green mould disease of mushroom crops.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".