Proposal of Furfurilactobacillus cerevisiae sp. nov. isolated from spoiled beer and Furfurilactobacillus cerealis sp. nov. isolated from sourdough
Bibliographic record
Abstract
A core genome phylogenomic analysis of two lactic acid bacteria isolates from spoiled beer, Furfurilactobacillus sp. LTH 5742 and LTH 5750, one isolate from sourdough, Furfurilactobacillus sp. C5, and the type strains of five Furfurilactobacillus species were performed. Average nucleotide identity and digital DNA–DNA hybridization analyses revealed two distinct phylogenetic lineages, both clearly separated from the five previously described Furfurilactobacillus species. Based on these data, two novel species were proposed: Furfurilactobacillus cerevisiae sp. nov., represented by strains LTH 5742 T (=DSM 120514 T =LMG 34151 T ) and LTH 5750, and Furfurilactobacillus cerealis sp. nov., represented by strain C5 T (=DSM 120515 T =LMG 34152 T ). Comparative genomic analyses highlighted distinct metabolic signatures concerning the 1,2-propanediol and hydroxycinnamic acid metabolism. The gene aldA encoding lactaldehyde dehydrogenase, contributing to 1,2-propanediol production from lactate, is present in Ff . spp. LTH 5742 T and LTH 5750, Ff . spp. C5 T and Furfurilactobacillus rossiae but not in Furfurilactobacillus milii . Genes for 1,2-propanediol conversion to propionate and propanol are present in Ff. rossiae but not in one of the other species. The glutathione reductase gene, gshR , was uniquely detected in Ff. cerealis , Ff. rossiae and ‘ Furfurilactobacillus entadae’ . These findings expand the diversity of the genus Furfurilactobacillus and provide insight into their ecological adaptation in cereal-based fermentations.
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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) | 0.001 | 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".