Enhancement of development and induction of resistance in tomato plants by the antagonist, Pythium oligandrum
Bibliographic record
Abstract
To exert an optimal biological control, P. oligandrum must colonise roots and persist in the rhizosphere of plants throughout the cultural season. The present study demonstrated that, after inoculation of root system by P. oligandrum, it colonised 20 to 40% of roots of tomato plants grown in hydroponic system. Constant presence of the introduced fungus in the rhizosphere over the cultural season is correlated with an increase in tomato yield. The combination of several factors likely explains this P. oligandrum-mediated increase. Among them, one may cite mycoparasitism; however, though P. oligandrum can parasitize other pathogenic Pythium species; root colonisation by the antagonist was not associated with significant reduction in Pythium spp. populations. In the present case, the induction of plant resistance seems more prevalent. Indeed, root colonisation with P. oligandrum induced systemic resistance. Interestingly, P. oligandrum-inoculated plants triggered and amplified PR proteins synthesis only when leaves had been attacked by the pathogen, Botrytis cinerea.
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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".