Internal structure of amylopectin from the pericarp tissue of developing wheat kernels
Bibliographic record
Abstract
Pericarp starch is a transient starch that forms in the developing wheat kernel and decomposes concurrently with the appearance of the endosperm. The detailed structure of the amylopectin component of pericarp starch granules was investigated and compared with amylopectin from mature wheat endosperm. Clusters of chains from the macromolecule were isolated by hydrolysis with α‐amylase from Bacillus amyloliquefaciens and were then transformed to limit dextrins using phosphorylase and β‐amylase. The pericarp clusters consisted of 14.2 chains on average and had a 16.1% degree of branching, which was similar to the characteristics of clusters from large endosperm starch granules, as was the composition of the branched building blocks. However, the pericarp clusters exhibited a somewhat lower number of the largest building blocks. Other structural attributes, such as the average number of building blocks in the clusters and the length of the interblock segments, were also similar to those of endosperm starch. It is concluded that the cluster structure of wheat pericarp amylopectin essentially matches that of its endosperm counterpart.
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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".