Paratractidigestivibacter
| Paratractidigestivibacter | |
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Scientific classification 
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| Missing taxonomy template (fix): | Paratractidigestivibacter |
| Type species | |
| Paratractidigestivibacter faecalis (Han et al.) Zgheib et al.
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Paratractidigestivibacter is a genus of Gram-positive bacteria in the family Atopobiaceae. It was established during a taxonomic revision of certain Coriobacteriales based on phylogenetic and genomic data. The genus currently contains a single known species, Paratractidigestivibacter faecalis, which was originally isolated from human feces.[1]
Taxonomy
Paratractidigestivibacter belongs to the phylum Actinomycetota, class Coriobacteriia, and order Coriobacteriales. The genus was proposed following the reclassification of the species previously known as Olsenella faecalis, after genome sequencing and 16S rRNA gene analysis revealed that it formed a separate lineage distinct from other members of the genus Olsenella.[2]
Morphology and physiology
Cells of Paratractidigestivibacter are rod-shaped, strictly anaerobic, non-motile, and non-spore-forming. They grow optimally at 37 °C and pH 7.0, with growth ranges between 30 and 40 °C and pH 5.0–9.0. Colonies are typically white to cream-colored and convex. The organism is catalase- and oxidase-negative, produces acid from mannose, and tolerates up to 1% NaCl. The DNA G+C content is approximately 65.5 mol%.[3]
References
- ↑ "Olsenella faecalis sp. nov., an anaerobic actinobacterium isolated from human faeces". International Journal of Systematic and Evolutionary Microbiology. 69 (8): 2323–2328. 2019. doi:10.1099/ijsem.0.003469.
- ↑ "New human-associated species of the family Atopobiaceae and proposal to reclassify members of the genus Olsenella". International Journal of Systematic and Evolutionary Microbiology. 71 (5): 004819. 2021. doi:10.1099/ijsem.0.004819.
- ↑ "Paratractidigestivibacter faecalis KGMB04489". BacDive – The Bacterial Diversity Metadatabase. Retrieved 2025-07-05.
External links
- LPSN entry for Paratractidigestivibacter
- NCBI Taxonomy Browser: Paratractidigestivibacter
- BacDive entry for Paratractidigestivibacter faecalis
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