Saussurea medusa Cell Suspension Cultures for Flavonoid Production
Bibliographic record
Abstract
Saussurea medusa Maxim. is a valuable traditional Chinese herb. The flavonoids are the main active pharmaceutical compounds in this medicinal plant species and have effective anti-tumor and anti-inflammation properties. This species is now almost extinct in China because of over-exploitation. The establishment of plant cell cultures would be a promising alternative to avoid extinction of this species and establish cultivation for the production of bioactive flavonoids. The callus is induced from leaf explants of S. medusa on Murashiage and Skoog medium supplemented with 0.5 mg/L 6-BA, 2 mg/L NAA, 30 g/L sucrose, and 5 g/L agar. A fine cell suspension is established from the induced light-yellow calluses in the MS liquid medium with 30 g/L sucrose, 0.5 mg/L BA, and 2.0 mg/L NAA for biosynthesis of flavonoids. The kinetics of cell growth and flavonoid accumulation in the cell suspension cultures are investigated. The highest dry weight and flavonoid production reach 17.2 g/L and 607.8 mg/L respectively after 15 d. Significantly high antioxidant activity and flavonoids accumulate in the cell suspension cultures of S. medusa.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.002 |
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".