Chryseobacterium capnotolerans

Chryseobacterium capnotolerans
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Bacteroidota
Class:	Flavobacteriia
Order:	Flavobacteriales
Family:	Weeksellaceae
Genus:	Chryseobacterium
Species:	C. capnotolerans
Binomial name
Chryseobacterium capnotolerans Heidler von Heilborn et al. 2022

Chryseobacterium capnotolerans is a Gram-negative, rod-shaped species of bacteria, which has been isolated primarily from pork sausage packed under CO₂-enriched modified atmosphere. It is considered to be a potential food spoilage organism, which grows at elevated levels of CO₂ of up to 40%. ^[1] Its name derives from Greek kapnos (for "smoke", used in biology for carbon dioxide) and Latin tolerans (for "tolerating").

Microbiologic characteristics

The species is cytochrome c oxidase-positive and catalase-positive, like other species from the genus Chryseobacterium. ^[2] It grows on Tryptic soy agar at temperatures of 8 to 39 °C, tolerating NaCl concentrations of up to 4.5%. Cells of Chryseobacterium capnotolerans are non-motile and 2 μm by 0.8 μm in dimension. The cell membrane of this species is characterized by the presence of phosphatidylethanolamine and various ornithine lipids. Additionally, the rare polar lipids sulfobacin A, flavolipin and cytolipin, as well as a glycolipid, were detected. ^[1] Another characteristic of the species is the presence of menaquinone 6 and the orange-colored pigment flexirubin, as described for the whole genus before. ^[2]

Genetics

The genome was fully-sequenced and uploaded at the NCBI database. ^[3] It consists of 5.36 mega base pairs. The DNA G+C content is 35.51 mol%.

References

1. David Heidler von Heilborn, Lena-Luisa Nover, Mareike Weber, Georg Hölzl, Nicolas Gisch, Claudia Waldhans, Maureen Mittler, Judith Kreyenschmidt, Christian Woehle, Bruno Hüttel5, André Lipski (May 2022). "Polar lipid characterization and description of Chryseobacterium capnotolerans sp. nov., isolated from high CO2-containing atmosphere and emended descriptions of the genus Chryseobacterium, and the species C. balustinum, C. daecheongense, C. formosense, C. gleum, C. indologenes, C. joostei, C. scophthalmum and C. ureilyticum" . International Journal of Systematic and Evolutionary Microbiology. 72 (5). doi:10.1099/ijsem.0.005372. PMID   35511036.
2. P. Vandamme, J.-F. Bernardet, P. Segers, K. Kersters, B. Holmes (1994). "New Perspectives in the Classification of the Flavobacteria: Description of Chryseobacterium gen. nov., Bergeyella gen. nov., and Empedobacter norn. rev". International Journal of Systematic and Evolutionary Microbiology. 44 (4): 827–831. doi: 10.1099/00207713-44-4-827 .
3. "National Center for Biotechnology Information: Chryseobacterium capnotolerans strain:DH-B6 isolate:DH-B6 Genome sequencing" . Retrieved 2022-05-18.