... . Independent Ultraviolet radiations (placed on four quadrant of petri dish, with exposure to each quadrant of 10's, 20's, 30's, 40's). Dependent Color change and survival of Serratia marcescens. Control Nutrient agar plate with streaks of Serratia marcescens without UV light. Results S.marcescens is a gram negative rod shaped bacteria, containing pigment prodigiosin. The control group after incubating at 25 degree Celsius, showed ... ...

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