Effects of Drought Stress and Storage on the Metabolite and Hormone Contents of Potato Tubers Expressing the Yeast Trehalose-6-phosphate Synthase 1 Gene
Bibliographic record
Abstract
Comparative studies on the tuber yield and quality of commercial potato cultivars were conducted. White Lady was the wild-type (WT) accession used, and transgenic lines in this background expressing the yeast trehalose-6-phosphate synthase 1 (TPS1) gene were analysed. The plants were grown in a greenhouse under well-watered and drought stress conditions, and the metabolite and hormone contents of freshly harvested and stored tubers were tested. Periodic drought resulted in an average 50% yield loss in WT and a 30% yield loss in TPS1 plants. However, the average tuber mass remained higher in WT than in TPS1 plants. Stress elevated the abscisic acid, proline, asparagine, and phenylalanine levels and significantly affected the levels of an additional 12 compounds in tubers. In contrast to abscisic acid, the salicylic acid levels in stressed tubers were reduced. In general, storage and stress had similar effects on the metabolite and hormone concentrations in both WT and TPS1 tubers. Interestingly, storage increased the mannose, phenylalanine, and abscisic acid concentrations and decreased the salicylic acid concentrations only in the tubers of well-watered plants. TPS1 tubers had a longer dormancy period than WT tubers and exhibited alterations in the concentrations of 13 metabolites.
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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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".