Fontisubflavum oceani gen. nov., sp. nov., isolated from the deep-sea cold seep water of South China Sea.
Int J Syst Evol Microbiol
; 74(1)2024 Jan.
Article
in En
| MEDLINE
| ID: mdl-38285488
ABSTRACT
In this study, we report a Gram-stain-negative, rod-shaped, atrichous and aerobic bacterial strain named CSW1921T, which was isolated from the deep-sea water of a cold seep in South China Sea. Growth of strain CSW1921T occurred at 10.0-35.0â°C (optimum, 30â°C), pH 5.0-10.0 (optimum, pH 8.0-9.0) and with 0-9.0â% (w/v) NaCl (optimum, 1.0-2.0â%). Phylogenetic tree analysis based on 16S rRNA gene sequence or the genomic sequence indicated that strain CSW1921T belonged to the family Rhodobacteraceae and was closely related to Rhodophyticola porphyridii MA-7-27T (97.5â% sequence similarity). Genomic analysis indicated that strain CSW1921T contains a circular chromosome of 3â592â879 bp with G+C content of 60.5âmol%. The predominant respiratory quinone of CSW1921T was ubiquinone-10. The polar lipids of CSW1921T contained phosphatidylglycerol, three unidentified aminolipids, two unidentified phospholipids and two unidentified lipids. The major fatty acids of strain CSW1921T contained C16ââ0, C18ââ1 ω7c 11-methyl and summed feature 8 (C18ââ1 ω7c). The average nucleotide identity, DNA-DNA hybridization and average amino acid identity values between strain CSW1921T and members of its related species were 68.02-69.08â%, 12.7-12.9â% and 46.87-48.08â%, respectively, which were lower than the recommended threshold values for bacterial species or genus delineation. Phylogenetic, physiological, biochemical and morphological analyses suggested that strain CSW1921T represents a novel genus and a novel species of the family Rhodobacteraceae, and the name Fontisubflavum oceani gen. nov., sp. nov. is proposed with the type strain CSW1921T (=MCCC 1K08371T=KCTC 92834T).
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Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Fatty Acids
Country/Region as subject:
Asia
Language:
En
Journal:
Int J Syst Evol Microbiol
Journal subject:
MICROBIOLOGIA
Year:
2024
Type:
Article