Ontogenesis, histochemistry, and seasonal and luminous environmental characterization of secretory cavities in leaves of <i>Myrcia splendens</i> (Myrtaceae)
Bibliographic record
Abstract
Secretory cavities produce compounds that protect plants from herbivory and pathogenic microorganisms. These cavities have been reported in many genera. However, there are few studies on secretory cavity ontogeny in the genus Myrcia (Myrtaceae) as well as the effects of luminosity and seasonality on such secretory cavities. Therefore, the objective of this study was to provide new information regarding the ontogenesis, structure, histochemistry, and effects of seasonality in Myrcia splendens (Sw.) DC. We collected and analyzed leaves from 10 specimens of M. splendens exposed to sun and shade during both the wet and dry seasons. The samples were subjected to standard anatomical techniques for light microscopy. Myrcia splendens has schizo-lysigenous ontogenesis with exudates composed of lipids, essential oils, oil-resins, and alkaloids. The largest secretory cavities were found in leaves exposed to sunlight during the dry season. The presence of lipophilic compounds may be an important strategy for protecting the plant from herbivores. The seasonal variations observed in the leaf’s secretory cavities demonstrate the anatomical plasticity of such species to the availability of light and water. As the total area of the leaf cavities in M. splendens reflects the seasonal variation, this should be taken into account when aiming to grow crops for producing essential oils or for alkaloid extractions.
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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".