Marinobacter panjinensis sp. nov., a moderately halophilic bacterium isolated from sea tidal flat environment.
Int J Syst Evol Microbiol
; 73(5)2023 May.
Article
em En
| MEDLINE
| ID: mdl-37167094
ABSTRACT
Two moderately halotolerant bacterium strains, designated PJ-16T and PJ-38, were isolated from a tidal flat of the red beach in Panjin City, Liaoning Province, PR China. Cells were found to be Gram-stain-negative, aerobic, motile, rod-shaped with a single polar flagellum. Optimum growth of strain PJ-16T occurred at 30 °C, pH 7.0 and 0.2-8.0ââ% (w/v) NaCl, and strain PJ-38 at 30 °C, pH 6.0-7.0 and 0.2-8.0ââ% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain PJ-16T was most closely related to Marinobacter denitrificans KCTC 62941T (99.2â% 16S rRNA gene sequence similarity), Marinobacter algicola DSM 16394T (98.6â%), Marinobacter salarius JCM 19399T (98.4â%) and Marinobacter confluentis KCTC 42705T (98.2â%), and strain PJ-38 was most closely related to M. denitrificans KCTC 62941T (99.1â%), M. algicola DSM 16394T (98.6â%), M. salarius JCM 19399T (98.4â%) and M. confluentis KCTC 42705T (98.1â%). The G+C content of the genomic DNA of strain PJ-16T based on its draft genomic sequence was 57.4âmol%. The major cellular fatty acids of strain PJ-16T were C16ââ0, C16ââ1 ω7c/C16ââ1 ω6c and C18ââ1 ω9c. The major respiratory quinone of PJ-16T was ubiquinone-9 and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The results of the phenotypic, phylogenetic and genomic analyses revealed that strains PJ-16T and PJ-38 represent a novel species of the genus Marinobacter, and the name Marinobacter panjinensis sp. nov. is proposed. The type strain is PJ-16T (= CGMCC 1.13694T= KCTC 72023T).
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01-internacional
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MEDLINE
Assunto principal:
Marinobacter
/
Ácidos Graxos
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article