Talk:Pink-Pigmented Facultative Methylotrophs

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"Their pigmentation, which is frequently pink but may also be yellow or orange, ..."

I have worked with 80% of the known type strains of Methylobacterium and never encountered a yellow or orange pigmented pink pigmented FFM. It is common that PPFMs may be unpigmented in a early stage of growth or overall unpigmented, namely M. nodulans and M. jeotgali. But if you find yellow or orange pigmented colonies... it's likely you are looking at something else.

It MIGHT be dependent on the media used to grow them though. All my experiences are based on AMS (ammonium mineral salt) agar with 1% v/v carbon sources (various compounds including several sugars and methanol) as well as GP (glycerol peptone) agar.