spiribacter curvatus spiribacter curvatus spiribacter curvatus is a gram-negative, strictly aerobic and non-motile bacterium from the genus of spiribacter which has been isolated from brine from a saltern from santa pola in spain. spiribacter curvatus scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: ectothiorhodospiraceae genus: spiribacter species: s. curvatus binomial name spiribacter curvatusleon et al. 2015 type strain cect 8396, dsm 28542, uah-sp71