Histological and ultrastructural changes in canola (<i>Brassica napus</i>) funicular anatomy during the seed lifecycle
Bibliographic record
Abstract
We examined the dynamic cellular changes that occur in Brassica napus L. funiculus histology and ultrastructure over developmental time by using light and transmission electron microscopy. Over the course of development, the funiculus significantly increased in size. This was a result of increased cell numbers as well as the deposition of additional wall material in the epidermis and vasculature layers of the funiculus. Conversely, the intermediate cortex layer broke down, detached from adjacent tissues, and developed large intercellular spaces. There was a loss of cytoplasm in the epidermis although this tissue remained intact. This cellular degeneration was correlated with a reduction in starch and other changes in organelle features. A pronounced increase in the number of vascular elements, both in the xylem and phloem tissues, also occurred as the funiculus matured. We present the first detailed histological examination of the funiculus in B. napus, one of the most economically important crops in Canada, and discuss the importance of cellular changes required for development as they relate to the three primary tissue systems of the plant.
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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".