Genome-wide identification and expression profiles of the superoxide dismutase (SOD) genes in Lentinula edodes
Bibliographic record
Abstract
The superoxide dismutase (SOD) enzymes are a group of key enzymes involved in oxidative stress defense and play a significant role in organismal growth and development. The SOD gene family has been identified in many plants, animals, and some fungi but not in the economically important edible mushroom Lentinula edodes. In this study, members of the SOD gene family of L. edodes were identified and analyzed using bioinformatic methods. Three proteins containing signature SOD domains were identified in each of the two monokaryotic strains SP3 and SP30 of L. edodes, and all six proteins belonged to the major Fe/Mn-SOD type. Phylogenetic analysis revealed that these LeSOD genes were classified into two subtypes, with members of each type sharing the same conserved motifs. Transcriptome data of mycelia grown under different conditions showed that LeSOD1 was significantly up-regulated under heat stress, while LeSOD2 was significantly up-regulated under hydrogen peroxide stress. Together, the genomic and transcriptomic analyses suggest that LeSOD1 and LeSOD2 are key genes for L. edodes to respond to abiotic stresses. This study provides a foundation for understanding both the roles of the SOD gene family and the molecular mechanism by which L. edodes responds to heat and oxidative stresses.
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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) | 0.000 | 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 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".