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Curr Microbiol ; 78(4): 1686-1691, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33683417

RESUMO

A novel Gram-stain-negative bacterium, designated strain GY 70310T, was isolated from the intestinal tract of Konosirus punctatus collected from Minjiang River, China. Cells of the strain were rod-shaped and motile with a single polar flagellum. The result of 16S rRNA gene sequence analyses showed that strain GY 70310T was moderately related to Crenobacter luteus YIM 78141T (94.7%), Paludibacterium paludis KBP-21T (93.8%) and Crenobacter cavernae K1W11S-77T (93.0%). The draft genome of strain GY 70310T consisted of 3.4 Mbp with DNA G+C content of 66.3 mol%, which possessed genes putatively encoding nitrate reductase, nitrite oxidoreductase and urease. The novel strain showed a whole genome average nucleotide identity (OrthoANI) value of 77.1% and a digital DNA-DNA hybridization (dDDH) value of 22.4% with Crenobacter luteus DSM 27258T, followed by Crenobacter cavernae K1W11S-77T with OrthoANI and dDDH values of 76.4% and 20.6%, respectively. The major fatty acids (>10%) were identified as summed feature 3 (C16:1ω6c and/or iso-C15:0 2-OH, C16:1ω7c), C16:0 and C18:1ω7c. The major respiratory quinone was ubiquinone-8 (Q-8). The polar lipids comprised diphosphatidylglycerol, phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified lipid and one unidentified phospholipid. On the basis of phylogenetic analyses, genotypic and chemotaxonomic characteristics, strain GY 70310T represents a novel species of the genus Crenobacter, for which the name Crenobacter intestini sp. nov., is proposed. The type strain is GY 70310T (= CGMCC 1.16821T = KCTC 62945T = NBRC 113900T).


Assuntos
Ácidos Graxos , Fosfolipídeos , Técnicas de Tipagem Bacteriana , Betaproteobacteria , China , DNA Bacteriano/genética , Neisseriaceae , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA
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