September 22, 2019  |  

First report of the occurrence and whole-genome characterization of Edwardsiella tarda in the false killer whale (Pseudorca crassidens).

Authors: Lee, Kyunglee and Kim, Hye Kwon and Park, Sung-Kyun and Sohn, Hawsun and Cho, Yuna and Choi, Young-Min and Jeong, Dae Gwin and Kim, Ji Hyung

Although several Edwardsiella tarda infections have been reported, its pathogenic role in marine mammals has not been investigated at the genome level. We investigated the genome of E. tarda strain KC-Pc-HB1, isolated from the false killer whale (Pseudorca crassidens) found bycaught in South Korea. The obtained genome was similar to that of human pathogenic E. tarda strains, but distinct from other Edwardsiella species. Although type III and VI secretion systems, which are essential for the virulence of other Edwardsiella species, were absent, several virulence-related genes involved in the pathogenesis of E. tarda were found in the genome. These results provide important insights into the E. tarda infecting marine mammals and give valuable information on potential virulence factors in this pathogen.

Journal: The Journal of veterinary medical science
DOI: 10.1292/jvms.17-0590
Year: 2018

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