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Int J Syst Evol Microbiol. 2018 Apr;68(4):1233-1237. doi: 10.1099/ijsem.0.002655. Epub 2018 Feb 26.

Vitellibacter todarodis sp. nov., isolated from intestinal tract of a squid (Todarodes pacificus).

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1​Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea.
2​Biotechnology Research Division, National Institute of Fisheries Science (NIFS), Gijang, Busan 46083, Republic of Korea.
3​Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.


A Gram-stain-negative, non-motile, aerobic and rod-shaped or ovoid bacterial strain, designated MYP2-2T, was isolated from the intestinal tract of a squid (Todarodes pacificus) collected from the East Sea, South Korea, and subjected to a polyphasic taxonomic study. Strain MYP2-2T grew optimally at 30-35 °C and in the presence of 2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain MYP2-2T belonged to the genus Vitellibacter. Strain MYP2-2T exhibited 16S rRNA gene sequence similarities of 95.4-96.6 % to the type strains of Vitellibacter species and of less than 94.5 % to the type strains of other recognized species examined. Strain MYP2-2T contained menaquinone MK-6 as the predominant respiratory quinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain MYP2-2T were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content of strain MYP2-2T was 41.6 mol%. Differential phenotypic properties, together with its phylogenetic distinctiveness, revealed that strain MYP2-2T is separated from recognized species of the genus Vitellibacter. On the basis of the data presented, strain MYP2-2T is considered to represent a novel species of the genus Vitellibacter, for which the name Vitellibacter todarodis sp. nov. is proposed. The type strain is MYP2-2T (=KCTC 62141T=NBRC 113025T).


Todarodes pacificus; Vitellibacter todarodis; novel species; polyphasic taxonomy; squid

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