A Rapid Nile Red Fluorescence‐Based Method for Triacylglycerol Content in Microspore‐Derived Cell Suspension Cultures of <i>Brassica napus</i>
Bibliographic record
Abstract
Brassica napus (L. cv Jet Neuf) microspore-derived (BnaMD) cell suspension cultures were used to study the biochemistry and molecular biology of plant lipid metabolism. The cell suspension cultures may also be a potentially useful trait-testing tool for further improvement of oilseed rape, the world's third largest vegetable oil crop. Nile red fluorescence methods have been used to assess neutral lipid accumulation in microorganisms and mammalian oocytes but have not been established for plant cell suspension cultures. In this study, a Nile red method was established and optimized for triacylglycerol (TAG) content analysis in BnaMD cell suspension cultures. Nile red fluorescence was easily determined in 96-well plates using a 490 nm excitation wavelength and a 595 nm emission wavelength without any significant interference from other cellular components. The lipid content of the cell suspension cultures at different growth stages was determined using a conventional lipid analysis method and the Nile red fluorescence method. There was a strong positive correlation between the Nile red fluorescence and TAG content in the cell suspension cultures. Therefore, the TAG content of BnaMD cell suspension cultures can be rapidly and robustly determined using a Nile red fluorescence-based method that can potentially be adapted for application to other plant cell suspension cultures.
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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 | 0.000 |
| 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".