Effect of Seed Soaking with Spermidine on Contents of Polyamines Conjugated to the Deoxyribonucleic Acid-protein in Maize(Zea mays L.) Seedling Roots under Osmotic Stress
Bibliographic record
Abstract
The contents of noncovalently conjugated polyamines(NCC-PAs) to deoxyribonucleic acid-protein(DNP) isolated from maize(Zea mays L.) seedling roots under osmotic stress were detected by HPLC.Results showed that after osmotic stress treatment for 7 d,the levels in NCC-spermidine(NCC-Spd) and NCC-spermine(NCC-Spm) of drought-tolerant Nongda 108 cv.increased more markedly than that of drought-sensitive Yedan 13 cv.,while the NCC-putrescine(NCC-Put) couldn't be statistically detected in two cultivars.Treatment of seed-soaking with Spd alleviated osmotic stress injury to Yedan 13 cv.seedlings,coupled with marked increases of NCC-Spd and NCC-Spm levels of this cultivar.These results suggested that Spd seed-soaking could enhance the tolerance of maize seedlings,especially of the drought-sensitive cultivar,to osmotic stress,via increasing NCC-Spd and NCC-Spm in DNP of roots.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".