Metabolite Profiles and Growth Characteristics of Rhizobium meliloti Cultivated at Different Specific Growth Rates
Bibliographic record
Abstract
Rhizobium meliloti (ATCC 55340) was grown at different specific growth rates in a chemostat apparatus. Metabolic products, relating to the Embden-Meyerhof-Parnas (EMP) pathway and the tricarboxylic acid (TCA) cycle, were measured and quantified to probe the influence of specific growth rate on the distribution of important metabolites. The detection of propionate in the fermentation broth implies that the imbalance of reducing equivalents of FADH(2) and NADH + H(+) resulted in a partially reductive operation of the TCA cycle. Additionally, experimental results show that the specific growth rate plays an essential role in modulating the biomass concentration, the specific substrate uptake rate, the cell length, the specific exopolysaccharide (EPS) production rate, the distribution of EPS molecular weight, and the profiles of carbohydrate and organic acid. The specific EPS production rate (varying from 13.3 to 111 mg EPS/g-DW/h) follows a growth-associated pattern at the specific growth rate ranging from 0.06 to 0.20 h(-1) and switches into non-growth-associated mode when the specific growth rate is over 0.20 h(-1).
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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 | 0.000 | 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 | 0.001 |
| 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".