Thalassotalea mangrovi sp. nov., a bacterium isolated from marine mangrove sediment.
Int J Syst Evol Microbiol
; 69(11): 3644-3649, 2019 Nov.
Article
em En
| MEDLINE
| ID: mdl-31622232
ABSTRACT
A novel Gram-stain-negative, strictly aerobic bacterium that has a rod-like shape with a single polar flagellum in the exponential phase of growth and a spherical or ovoid shape without a flagellum in the stationary phase was isolated from a mangrove wetland sediment sample collected at Beilun Estuary National Nature Reserve, Guangxi Province, PR China and designated strain ZS-4T. This strain grew optimally at pH 6.0-8.0, at a temperature of 37 °C and in the presence of 3-4â% (w/v) NaCl. Its polar lipid profile included phosphatidylethanolamine, phosphatidylglycerol, one unidentified aminophospholipid and two uncharacterized lipids. Ubiquinone 8 (Q-8) was the sole respiratory quinone and the cellular fatty acids were dominated by C17ââ1ω8c and C16ââ0. A phylogenetic analysis based on the 16S rRNA gene sequence showed that strain ZS-4T exhibited its highest similarities to the type strains Thalassotalea litorea HMF4135T (97.8â%) and Thalassotalea ponticola GJSW-36T (95.9â%). A whole genome-level comparison of strain ZS-4T with T. litorea MCCC 1K03283T revealed an average nucleotide identity value of 75.6â% and a calculated DNA-DNA hybridization value of 19.6â%. In addition, the genomic DNA G+C content of strain ZS-4T was 45.9 mol%. Thus, based on analyses of its morphology, physiology, fatty acid composition and 16S rRNA gene sequence, strain ZS-4T should be considered a novel species of the genus Thalassotalea, with the proposed name Thalassotaleamangrovi sp. nov. The type strain is ZS-4T (=KCTC 72399T=MCCC 1K03630T).
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MEDLINE
Assunto principal:
Filogenia
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Sedimentos Geológicos
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Gammaproteobacteria
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Áreas Alagadas
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article