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Arch Microbiol ; 203(7): 4493-4498, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34148113

RESUMO

A Gram-stain-negative, oval or short rod-shaped, non-motile, aerobic bacterium, designated strain S1109LT, was isolated from a marine sediment in Weihai, PR China. Cells were oxidase positive and catalase positive. Growth of strain S1109LT occurred at 10-40 °C (optimum, 30-33 °C), pH 6.5-10.0 (optimum, 7.0-8.0) and in the presence of 1-21% (optimum, 4-6%) (w/v) NaCl. 16S rRNA gene sequence phylogeny indicated that strain S1109LT was associated with the genus Pontibaca of the family Rhodobacteraceae because it showed the highest sequence similarity to Pontibaca methylaminivorans KCTC 22497T (97.5%). The average nucleotide identity (ANI) and the digital DNA-DNA hybridization (dDDH) scores between strain S1109LT and Pontibaca methylaminivorans KCTC 22497T were 74.6% and 18.7%. The major cellular fatty acids of strain S1109LT were C19:0 cyclo ω8c and C18:1 ω7c. The polar lipids profiles of strain S1109LT were phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and two unidentified lipids. Strain S1109LT contained ubiquinone-10 as the major respiratory quinone. The genomic DNA G + C content was 55.9 mol%. On the basis of the evidence presented in this study, strain S1109LT is considered to represent a novel species of the genus Pontibaca, for which the name Pontibaca salina sp. nov. is proposed. The type strain of is S1109LT (= KCTC 82411T = MCCC 1H00441T).


Assuntos
Sedimentos Geológicos , Rhodobacteraceae , China , Ácidos Graxos/análise , Sedimentos Geológicos/microbiologia , Fosfolipídeos/análise , Filogenia , RNA Ribossômico 16S/genética , Rhodobacteraceae/classificação , Rhodobacteraceae/genética , Especificidade da Espécie
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