Deinococcus
•They stain gram-positive, but they are gram-negative.
•They lack lipid in their outer membrane and also contain an unusual form of peptidoglycan. They contain pink pigments and reproduce by binary fission.
•They are extremely radiation (such as UV) resistance. (Deinococcusradiodurans)
•Thermusaquaticusis the source of TaqDNA polymerase used in Polymerase Chain reaction (PCR) due to the heat stability of the enzyme.