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Title 

Phaeobacter aquaemixtae sp. nov., isolated from the junction between the ocean and a freshwater spring

Authors 

S ParkDoo-Sang ParkKyung Sook BaeJ H Yoon

Publisher 

Society for General Microbiology

Issue Date 

2014

Citation 

International Journal of Systematic and Evolutionary Microbiology, vol. 64, no. 4, pp. 1378-1383

Abstract 

A Gram-reaction-negative, aerobic, non-spore-forming, non-motile and rod-shaped or ovoid bacterial strain, designated SSK6-1T, was isolated from the zone where the ocean and a freshwater spring meet at Jeju island, South Korea. Strain SSK6-1T grew optimally at 30 °C, at pH 7.0-7.5 and in the presence of 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain SSK6-1T clustered with Phaeobacter daeponensis TF-218T and Phaeobacter caeruleus LMG 24369T, exhibiting sequence similarities of 98.6 and 98.3 %, respectively. The novel strain exhibited sequence similarities of 94.6-97.8 % to the type strains of other recognized species of the genera Phaeobacter and Leisingera. Strain SSK6-1T contained Q-10 as the predominant ubiquinone and C18: 1ω7c and 11-methyl C18: 1ω7c as the major fatty acids. The major polar lipids of strain SSK6-1T were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain SSK6-1T was 64.6 mol% and its DNA-DNA relatedness values with P. daeponensis TF-218T and P. caeruleus were 21 and 25 %, respectively. The differential phenotypic properties, together with phylogenetic and genetic distinctiveness, revealed that strain SSK6-1T is separate from recognized Phaeobacter species. On the basis of the data presented, strain SSK6-1T is considered to represent a novel species of the genus Phaeobacter, for which the name Phaeobacter aquaemixtae sp. nov. is proposed. The type strain is SSK6-1T (= KCTC 32538T = CECT 8399T).

ISSN 

1466-5026

Link 

http://dx.doi.org/10.1099/ijs.0.057646-0

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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