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Janthinobacterium tructae sp. nov., Isolated from Kidney of Rainbow Trout (Oncorhynchus mykiss).


ABSTRACT: This study presents a novel Janthinobacterium strain, SNU WT3, isolated from the kidney of rainbow trout. A phylogenetic study using 16S rRNA sequences indicated that the strain is closely related to Janthinobacterium svalbardensis JA-1T. However, biochemical analysis found differences in D-xylose adonitol, N-acetylglucosamine, arbutin, and cellobiose. As for genome-to-genome distance and average nucleotide identity values calculated between strain SNU WT3 and other related strains such as J. lividum EIF1, J. svalbardensis PAMC 27463, and J. agaricidamnosum BHSEK were all below the cutoff value between species. DNA-DNA hybridization between strain SNU WT3 and other close relatives indicated the results of J. lividum DSM 1522T (47.11%) and J. svalbardensis JA-1T (38.88%) individually. The major fatty acid compositions of strain SNU WT3 were cylco-C17:0 (41.45%), C16:0 (33.86%) and C12:0 (5.87%). The major polar lipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol, and diphosphatidylglycerol. The quinone system was composed mainly of ubiquinone Q-8. The genome of strain SNU WT3 consists of 6,314,370 bp with a G + C content of 62.35%. Here, we describe a novel species of the genus Janthinobacterium, and the name Janthinobacterium tructae has been proposed with SNU WT3T (=KCTC 72518 = JCM 33613) as the type strain.

PROVIDER: S-EPMC7922066 | BioStudies |

REPOSITORIES: biostudies

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