jannaschia donghaensis jannaschia donghaensis jannaschia donghaensis is a gram-negative and non-motile bacterium from the genus of jannaschia which has been isolated from seawater from the sea of japan from the liancourt rocks. jannaschia donghaensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: jannaschia species: j. donghaensis binomial name jannaschia donghaensisyoon et al. 2007 type strain jcm 14563, kctc 12862, strain dsw-17