Psychrobacter faecalis
{{Speciesbox
| image =
| taxon = Psychrobacter faecalis
| authority = Kämpfer et al. 2002[https://lpsn.dsmz.de/genus/psychrobacter LPSN lpsn.dsmz.de]
| type_strain =
CCUG 48039
CIP 107288
DSM 14664
Iso-46
| synonyms =
}}
Psychrobacter faecalis is an aerobic, Gram-negative, oxidase-positive, catalase-positive, non-spore forming bacillus initially isolated from a bioaerosol originating from pigeon faeces.{{Cite journal |last1=Kämpfer |first1=Peter |last2=Albrecht |first2=Andreas |last3=Buczolits |first3=Sandra |last4=Busse |first4=Hans-Jürgen |date=January 2002 |title=Psychrobacter faecalis sp. nov., a New Species from a Bioaerosol Originating from Pigeon Faeces |url=https://linkinghub.elsevier.com/retrieve/pii/S0723202004700831 |journal=Systematic and Applied Microbiology |language=en |volume=25 |issue=1 |pages=31–36 |doi=10.1078/0723-2020-00099|pmid=12086186 |url-access=subscription }}
Microbiology
P. faecalis is an aerobic bacterium formed of Gram negative rods, measuring 0.8-1.2 x 1.0-2.0 μm, which grow in circular, opaque colonies on nutrient agar. It is oxidase-positive, catalase-positive and indole-negative. This organism shows psychrotrophic tendencies and replicates in temperatures ranging from 4 °C to 36 °C, and possesses chemoheterotrophic metabolism.
Discovery
P. faecalis was discovered in 2002, while performing a study analysing the exposure of workers to bioaerosols in a room contaminated with pigeon faeces. An isolate was found that grew on MacConkey agar, but could not be clearly identified as a member of the Enterobacteriaceae. 16S rRNA sequencing identified significant sequence similarities (93.9 - 96.9%) between this new isolate and other members of the Psychrobacter genus, but below 97%, indicating the presence of a novel species.
References
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Deschaght P, Jenssens M, Vaneechoutte M, Wauters G (2012) Psychrobacter isolates of human origin, other than Psychrobacter phenylpyruvicus, are predominantly Psychrobacter faecalis and Psychrobacter pulmonis, with embedded description of P. faecalis. International Journal of Systemic and Evolutionary Microbiology 62: 671-674
Gori K, Ryssel M, Arneborg N, Jespersen L (2012) Isolation and identification of the microbiota of Danish farmhouse and industrially produced surface-ripened cheeses. Microbial Ecology 65: 602-615
Reina J C, Manuel R, Salto R, Camara M, Llamas I (2021) AhaP, A quorum quenching acylase from Psychrobacter sp. M9-54-1 that attenuates Pseudomonas aeruginosa and Vibrio coralliilyticus virulence. Marine Drugs. 19
Thanh P N, Hong V D, Ngoc D C, The V B (2021) Cellulose degrading ability of bacterial strains isolated from gut of termites in Vinhlong province- Vietnam. Chemical Engineering Transactions. Volume 88
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