Weakly staining, Gram negative, plump coccoid rods,

appearing in pairs or short chains.

Obligate Aerobic

BA: growth appears as pinpoint, pale pink, shiny, raised, entire and often mucoid colonies after 2 to 3 days of incubation.

Looks like Methylobacterium

Pigment: pink-purple pigment, is better reflected in a Saboureaud and at 25°C.

McConkey: growth variable

BBAØ: no growth

NOTES
Initial incubation of media should be at 35-37°C, although many of the pink pigmented strains grow better at ≤ 30°C and may be detected on plates left at room temperature after initial readings.

All identification tests on these isolates should be carried out at 30°C
(including some of the commercial ID kits)

James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition