marinomonas alcarazii marinomonas alcarazii marinomonas alcarazii is a gram-negative and aerobic bacterium from the genus of marinomonas which has been isolated from the seagrass posidonia oceanica. marinomonas alcarazii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: oceanospirillaceae genus: marinomonas species: m. alcarazii binomial name marinomonas alcaraziilucas-elío et al. 2011 type strain cect 7730, ivia-po-14b, ncimb 14671