Tests Characteristics observed
Morphology
shape Cocci
pigment pink
Gram reaction +
Biochemical reaction
Oxidase test +
Catalase test +
Indol formation +
Citrate utilization +
Gelatin liquefaction +
Nitrate reduction -
Fermentation
D-glucose +
Arginine +
Lactose -
Mannose +
Casien +
"+"and "-" indicate positive and negative reactions, respectively
Table 1: Morphological and biochemical characteristics of D. radiodurans.