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Int J Syst Evol Microbiol. 2017 Aug;67(8):2791-2797. doi: 10.1099/ijsem.0.002023. Epub 2017 Aug 18.

Alteromonas aestuariivivens sp. nov., isolated from a tidal flat.

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Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.


A Gram-stain-negative, aerobic, non-spore-forming, motile and ovoid or rod-shaped bacterial strain, JDTF-113T, was isolated from a tidal flat in Jindo, an island of South Korea. Strain JDTF-113T grew optimally at 30 °C, at pH 7.0-8.0 and in the presence of 2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree, based on 16S rRNA gene sequences, revealed that strain JDTF-113T fell within the clade enclosing the type strains of species of the genus Alteromonas. Strain JDTF-113T exhibited 16S rRNA gene sequence similarity values of 97.1-98.1 % to the type strains of Alteromonaslipolytica, Alteromonaslitorea, Alteromonasmediterranea, Alteromonasconfluentis, Alteromonas hispanica, Alteromonasgenovensis and Alteromonasmarina, and of 94.8-96.9 % to those of the other species of the genus Alteromonas. Strain JDTF-113T contained Q-8 as the predominant ubiquinone and C16 : 0, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and C18 : 1ω7c as the major fatty acids. The major polar lipids of strain JDTF-113T were phosphatidylethanolamine, phosphatidylglycerol and one unidentified glycolipid. The DNA G+C content of strain JDTF-113T was 51.1 mol% and its mean DNA-DNA relatedness values with the type strains of seven closely phylogenetically related species of the genus Alteromonaswere was 10-23 %. The differential phenotypic properties and phylogenetic and genetic distinctiveness support strain JDTF-113T being separated from species of the genus Alteromonaswith validly publishednames. On the basis of the data presented, strain JDTF-113T is considered to represent a novel species of the genus Alteromonas, for which the name Alteromonas aestuariivivens sp. nov. is proposed. The type strain is JDTF-113T (=KCTC 52655T=NBRC 112708T).

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