Alteromonadales

Al·te·ro·mo·na·da·les (awl″tər-o-mo″nə-daґlēz) [L. alter another + Gr. monas unit, from monos single] an order of chiefly marine bacteria of the class Gammaproteobacteria, phylum Proteobacteria, consisting of gram-negative, straight or curved rods that are motile by a single polar flagellum. Organisms are non–spore-forming, facultatively anaerobic or strictly aerobic, and chemo-organotrophic; most are nonpathogenic. It contains the single family Alteromonadaceae.