Effect of different carbon sources on callus formation, pigment accumulation, and antiviral activity in cell cultures of Euphorbia milii
Why this work is in the frame
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Bibliographic record
Abstract
Background and aim Humans have long been relying on plants for food, shelter, and most importantly for medicines. In vitro culture techniques, which ensure rapid, consistent, and uniform mass production, are indispensable for manufacturing important plant-derived metabolites. However, insufficient information is available regarding the tissue culture of Euphorbia milii and its important bioactive compounds. This study mainly aims to explore the impact of different carbon sources on callus formation, pigment accumulation, and antiviral activity of E. milii . Materials and methods Using inflorescence tissues as explants, we investigated the effects of different types and concentrations of plant growth regulators (2,4-dichlorophenoxyacetic acid [2,4-D], alone or combined with benzyl aminopurine) on callus induction frequency. Moreover, we studied the effects of different concentrations of carbon sources (glucose, fructose, and mannose) on callus growth, pigment (chlorophylls, carotenoids, and anthocyanins) accumulation, and antiviral activities. Results and conclusion The results indicated that 2,4-D alone (1.0 mg/l or 1.5 mg/l) induced callus formation most effectively. Furthermore, glucose was detected to be the more effective carbon source for the accumulation of chlorophylls, carotenoids, and anthocyanins compared with fructose and mannose. The highest accumulation of pigments was induced by 20 or 40 mg/l glucose supplements, with no significant difference between the effects of different concentrations. Unlike glucose, fructose or mannose did not enhance pigment accumulation; moreover, high concentrations had negative effects on pigment accumulation. Similarly, glucose was more suitable for the antiviral activity of E. milii extracts than fructose and mannose. The results will support the effective production of secondary metabolites and offer insights into the antiviral potency of E. milii .
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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 it