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Staphyloxanthin in the pigmented S. aureus helps cells maintain membrane fluidity over stationary phase too. Membrane anisotropy values of the stationary phase cells were determined using a membrane intercalating fluorescent dye (DPH) as described for the log phase cells. Note that anisotropy values do not have unit. Error bars indicate standard deviation from mean anisotropy values obtained from at least three independent experiments.
