Pelagibacterium lentulum sp. nov., a marine bacterium from the culture broth of Picochlorum sp. 122.
Int J Syst Evol Microbiol
; 67(9): 3182-3185, 2017 Sep.
Article
em En
| MEDLINE
| ID: mdl-28840801
ABSTRACT
A Gram-stain-negative, motile, non-spore-forming, rod-shaped bacterium, designated strain B2T, was isolated from the culture broth of a marine microalga, Picochlorum sp. 122. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain B2T forms a robust cluster with members of the genus Pelagibacterium, and shares the highest sequence similarity of 96.80â% with Pelagibacterium halotolerans CGMCC 1.7692T. Optimal growth of strain B2T was observed at 33 °C, at pH 8 and in the presence of 1â% (w/v) NaCl. The predominant ubiquinone of strain B2T was Q-10, and the G+C content of the genomic DNA was 58.6 mol%. The major fatty acid profile comprised C18ââ1ω7c/ω6c, C19ââ0 cyclo ω8c and C16ââ0. The major polar lipids of strain B2T were diphosphatidylglycerol, phosphatidylglycerol, two unidentified glycolipids and seven unidentified lipids. Comprehensive analyses based on a polyphasic characterization of strain B2T indicated that it represents a novel species of the genus Pelagibacterium, for which the name Pelagibacterium lentulum sp. nov. is proposed. The type strain is B2T (=MCCC 1K03218T=CGMCC 1.15896T=KCTC 52551T).
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Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Hyphomicrobiaceae
/
Clorófitas
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article