Benlaïfaoui, Myriam; Richard, Corentin; Diop, Awa; Naimi, Sabrine; Belkaid, Wiam; Bernet, Eve; Veyrier, Frédéric 
ORCID: https://orcid.org/0000-0002-8574-0547; Elkrief, Arielle; Bobay, Louis-Marie; Routy, Bertrand et Diop, Khoudia
(2023).
Tractidigestivibacter montrealensis sp. nov., a new member of human gut microbiota isolated from a healthy volunteer
FEMS microbiology letters
, vol. 370
, nº fnad058.
pp. 1-10.
Résumé
Strain KD21T, isolated from the fecal sample of a healthy female volunteer, is a strictly anaerobic, non-motile, Gram-staining-positive, saccharolytic small rod, that does not produce spores. Strain KD21T was able to grow in the range of temperature 28-37°C (optimum, 37 °C), pH 6.0-8.0 (optimum, pH 7.0), and with 0-5.0 g/L NaCl (optimum, 0 g/L NaCl). Bacteria cells reduced nitrates to nitrites. Its major fatty acids were C18:1ω9c, C16:0, C18:0 and summed in feature 8 (C18:1ω7c and/or C18:1ω6c). 16S rRNA gene phylogenetic analysis revealed that KD21T is a member of the genus Tractidigestivibacter and is distinct from any species with validly published names. The sequence showed 98.48% similarity with T. scatoligenes SK9K4T. The DNA G + C content of strain KD21T was 62.6 mol%. The DNA-DNA hybridization and OrthoANI values between strain KD21T and T. scatoligenes SK9K4T were were 40.2% and 90.2%, respectively. Differences in phenotypic, phylogenetic, chemotaxonomic, and genomic characteristics indicated that strain KD21T represents a novel species within the genus Tractidigestivibacter. The name Tractidigestivibacter montrealensis sp. nov. is proposed and the type strain is KD21T ( = CSUR Q8103T = DSM 115111T).
| Type de document: | Article |
|---|---|
| Mots-clés libres: | Tractidigestivibacter montrealensis; culturomics; gut microbiota; human feces. |
| Centre: | Centre INRS-Institut Armand Frappier |
| Date de dépôt: | 11 déc. 2023 15:15 |
| Dernière modification: | 11 déc. 2023 15:15 |
| URI: | https://espace.inrs.ca/id/eprint/13628 |
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