PHYCOBILIPROTEIN PIGMENTS IN PSEUDOCYPHELLARIA SPECIES AND THEIR ROLE IN COMPLEMENTARY CHROMATIC ADAPTATION

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  The phycobiliprotein pigment content of eight species of Southern Hemisphere Pseudocyphellaria with cyanobacteria (Nostoc sp.) as photobionts was studied by means of ion-exchange chromatography. C-phycoerythrin, the dominant pigment, C-phycocyanin, allophycocyanin and allophycocyanin B were identified and the total phycobiliprotein content ranged from 0.732 (Pseudocyphellaria bartlettii) to 1.847 mg g^-1 dry mass (P. dissimilis). The amino acids of proteins of C-phycoerythrin, C-phycocyanin and allophycocyanin were analysed. The biliproteins as complementary chromatic adaptation in lichens species is described.