marinobacter nitratireducens marinobacter nitratireducens marinobacter nitratireducens is a gram-negative, halophilic rod-shaped and motile bacterium from the genus of marinobacter which has been isolated from coastal sea water from visakhapatnam in india. marinobacter nitratireducens scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacter species: m. nitratireducensvaidya et al. 2015 binomial name marinobacter nitratireducens type strain jcm 18428, mtcc 11704, ak21