Communication in the Tripartite Symbiosis Formed by Arbuscular Mycorrhizal Fungi, Rhizobia and Legume Plants: A Review
Bibliographic record
Abstract
This chapter focuses on details of the communication between the symbionts prior to establishment of the tripartite symbiosis. Specific flavonoids are necessary to stimulate nodulation and N2 fixation. Some of these signal compounds have also been shown to stimulate mycorrhizal colonization directly. Furthermore, there has been some indication that flavonoid root accumulation is enhanced in response to arbuscular mycorrhizal fungi and rhizobia. Different types of flavonoids are exuded by roots of seedling legumes and are involved in chemotactic responses and the activation of nod genes of rhizobia. Flavonoids participate in the establishment of the tripartite symbiosis between soybean, Bradyrhizobium, and AMF. Interactions among participants in the tripartite symbiosis have a significant impact on N2 fixation. Such impact is likely to depend significantly on the timing of early colonization events by both symbiotic microbes due to their use of common transduction pathways.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.003 |
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".