rheinheimera aestuari rheinheimera aestuari rheinheimera aestuari is a gram-negative, non-spore-forming, strictly aerobic and motile bacterium from the genus of rheinheimera which has been isolated from coastal sediments from the jeju island in korea. rheinheimera aestuari scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: chromatiaceae genus: rheinheimera species: r. aestuari binomial name rheinheimera aestuaribaek and jeon 2015