Prodigiosin pigment of Serratia

Pigment of Serratia marcescens

Serratia has a  good feature  forming a pink, red or magneta, non- diffusible pigment called prodigiosin. Pigment expresses optimally at room temperature whereas no pigmentation at 37°C.

Picture showing prodigiosin pigment on nutrient agar  is lacking at 37°C whereas expressing at room temperature left to right respectively as shown above.

 

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