marinobacterium maritimum marinobacterium maritimum marinobacterium maritimum is a gram-negative, rod-shaped, aerobic and motile bacterium from the genus of marinobacterium which has been isolated from sediments from the arctic. s.i. paul et al. (2021) isolated, characterized and identified marinobacterium maritimum from marine sponges of the saint martin's island area of the bay of bengal, bangladesh. marinobacterium maritimum scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacterium species: m. maritimum binomial name marinobacterium maritimumkim et al. 2009 type strain jcm 15134, kctc 22254, ar-11 synonyms marinobacterium maritimus biochemical characteristics of marinobacterium maritimum colony, morphological, physiological, and biochemical characteristics of marinobacterium maritimum are shown in the table below. test type test characteristics colony characters size pin headed/small type round color opaque shape convex morphological characters shape rod physiological characters motility + growth at 6.5% nacl + biochemical characters gram's staining – oxidase + catalase – oxidative-fermentative oxidative motility + methyl red – voges-proskauer + indole – h2s production – urease – nitrate reductase – β-galactosidase v hydrolysis of gelatin v aesculin + casein + tween 40 v tween 60 v tween 80 v acid production from glycerol + galactose + d-glucose v d-fructose + d-mannose + mannitol + n-acetylglucosamine v amygdalin + maltose + d-melibiose + d-trehalose + glycogen + d-turanose v note: + = positive; – =negative; v =variable (+/–)