Characterization of stipular colleters of A<i>lseis pickelii</i>
Bibliographic record
Abstract
Colleters are secretory structures of taxonomic relevance that are characterized by the production of a mucilaginous substance in the shoot apices and the development of organs that act against dehydration, herbivores, and pathogens. However, no studies have investigated the senescence and programmed cell death processes of colleters. The goal of this study was to describe the structure of Alseis pickelii Pilger et Shmale (Cinchonoideae) colleters and to characterize the process of senescence. Colleters in the early development stage have a smooth surface and turgid epidermal cells with dense cytoplasm. Subsequently, the epidermal cells exhibit one of the first signs of cell death described for colleters, cytoplasm retraction. Colleters at the intermediate stage show a wrinkled surface as a consequence of their secretory process. During the secretory phase, colleter cells show a hypertrophic endoplasmic reticulum and Golgi apparatus, suggesting high synthesis activity. Senescent colleters have a widened aspect, have disorganized epidermal cells, and are collapsed, making it difficult to see their structure. Histochemical tests showed the same reaction with Schiff's and Ruthenium Red reagents for all three stages, indicating the mucilaginous character of the secretion. Lipids and proteins were also observed throughout colleter development. DNA fragmentation, a typical symptom of cells undergoing processes of programmed cell death, was observed by TUNEL and quantified by a Cell Death Detection ELISA assay.
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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".