Effects of He-Ne Laser Irradiation on Bacillus Licheniformis of Producing γ-Polyglutamic Acid
Bibliographic record
Abstract
Bacillus licheniformis ATCC9945A was irradiated by He-Ne laser. The influences of He-Ne irradiation on the divistion and growth of the bacterium was investigated. The optimum He-Ne laser irradiation dosages was 0.48 mw·cm-2,15 min. Among the two ways of He-Ne laser irradiation,“physiological salt water bacterial suspension liguid” showed more effective inactivation. The bacterial cells in lag phase were the most sensitive to He-Ne laser irradiation,and cells sensitivities decreased gradually in other phases. Thus the bacterial spores were not sensitive to He-Ne laser irradiation. Based on the analysis of the γ-Polyglumatic acid fermentation and electron microscope screening,it was found that He-Ne laser could give rise to an obvious biological stimulating effect and an available mutagenesis effect, several variation strains that produced γ-polyglumatic acid abnormally were screened. In the meantime,by the contrast of PGA、RNA、DNA from the extracell,intracell and periplasmic between mutant strain and original strain,we had a furthe evidence that He-Ne laser can cause mutagenesis effect on Bacillus licheniformis.
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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 | 0.000 |
| 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".