marinobacterium coralli marinobacterium coralli marinobacterium coralli is a gram-negative and aerobic bacterium from the genus of marinobacterium which has been isolated from the mucus of the coral mussismilia hispida from the são sebastião channel in brazil. s.i. paul et al. (2021) isolated, characterized and identified marinobacterium coralli from marine sponges of the saint martin's island area of the bay of bengal, bangladesh. marinobacterium coralli scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacterium species: m. coralli binomial name marinobacterium corallichimetto et al. 2011 type strain caim 1449, lmg 25435, r-40509, r-823 biochemical characteristics of marinobacterium coralli colony, morphological, physiological, and biochemical characteristics of marinobacterium coralli 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 (+/–)