Paratractidigestivibacter

{{Short description|Genus of bacteria}}
{{Taxobox
| color = lightgrey
| name = ''Paratractidigestivibacter''
| domain = [[Bacteria]]
| phylum = [[Actinomycetota]]
| classis = [[Coriobacteriia]]
| ordo = [[Coriobacteriales]]
| familia = [[Atopobiaceae]]
| genus = ''Paratractidigestivibacter''
| genus_authority = 2021
| type_species = ''Paratractidigestivibacter faecalis''
| type_species_authority = (2019) 2021
}}

'''''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.<ref name="Han2019" />

== 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]]''.<ref name="Zgheib2021" />

== 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 30–40 °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%.<ref name="BacDive" />

== References ==
<references>
<ref name="Zgheib2021">{{cite journal
|title=New human-associated species of the family Atopobiaceae and proposal to reclassify members of the genus Olsenella
|journal=International Journal of Systematic and Evolutionary Microbiology
|date=2021
|volume=71
|issue=5
|pages=004819
|doi=10.1099/ijsem.0.004819
}}</ref>

<ref name="Han2019">{{cite journal
|title=''Olsenella faecalis'' sp. nov., an anaerobic actinobacterium isolated from human faeces
|journal=International Journal of Systematic and Evolutionary Microbiology
|date=2019
|volume=69
|issue=8
|pages=2323–2328
|doi=10.1099/ijsem.0.003469
}}</ref>

<ref name="BacDive">{{cite web
|title=''Paratractidigestivibacter faecalis'' KGMB04489
|website=BacDive – The Bacterial Diversity Metadatabase
|url=https://bacdive.dsmz.de/strain/164709
|access-date=2025-07-05
}}</ref>
</references>

== External links ==
* [https://lpsn.dsmz.de/genus/paratractidigestivibacter LPSN entry for ''Paratractidigestivibacter'']
* [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=2847314 NCBI Taxonomy Browser: ''Paratractidigestivibacter'']
* [https://bacdive.dsmz.de/strain/164709 BacDive entry for ''Paratractidigestivibacter faecalis'']

{{Taxonbar|from=Q124605103}}

[[Category:Bacteria genera]]
[[Category:Gram-positive bacteria]]
[[Category:Anaerobes]]
[[Category:Coriobacteriia]]