Aquimarina longa sp. nov., isolated from seawater, and emended description of Aquimarina muelleri
2013
A novel Gram-stain-negative, rod-shaped, non-flagellated, strictly aerobic strain with gliding motility, designated SW024T, was isolated from surface seawater of the South Pacific Gyre (26° 29′ S 137° 56′ W) during the Integrated Ocean Drilling Program Expedition 329. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel strain was related most closely to
Aquimarina muelleri
KMM 6020T,
Aquimarina macrocephali
JAMB N27T,
Aquimarina addita
JC2680T,
Aquimarina mytili PSC33T,
Aquimarina intermedia
KMM 6258T,
Aquimarina latercula
ATCC 23177T,
Aquimarina spongiae
A6T,
Aquimarina agarilytica
ZC1T and
Aquimarina brevivitae
SMK-19T (96.1, 95.5, 95.0, 94.4, 94.3, 94.0, 93.4, 93.3 and 93.2 % similarities, respectively), demonstrating that the novel strain belonged to the genus
Aquimarina
. The DNA G+C content of strain SW024T was 30.8 mol%. The major respiratory quinone of strain SW024T was MK-6. The dominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 1 G, C16 : 0 10-methyl and/or iso-C17 : 1ω9c, and iso-C15 : 0 3-OH. The polar lipids of strain SW024T were phosphatidylethanolamine, three unknown aminolipids and five unknown polar lipids. On the basis of combined phenotypic and phylogenetic analyses, strain SW024T represents a novel species of the genus
Aquimarina
, for which the name Aquimarina longa sp. nov. is proposed. The type strain is SW024T ( = CGMCC 1.11007T = JCM 17859T). An emended description of
A. muelleri
is also proposed.
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