Any of a group of red photosynthetic pigments present in red algae and some cyanobacteria.
- Red algae are red because of the presence of the pigment phycoerythrin; this pigment reflects red light and absorbs blue light.
- Cells were washed with phosphate-buffered saline and incubated with Becton Dickinson cocktails of antibodies conjugated to fluorescein isothiocyanate, phycoerythrin, peridinin chlorophyll protein, or allophycocyanin.
- However, not all ‘blue-green’ bacteria are blue; some common forms are red or pink from the pigment phycoerythrin.
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