STRUCTURAL ORGANIZATION AND FUNCTIONS OF PHYCOBILIPROTEINS IN CYANOBACTERIA
Ayyaraju Middepogu1. Murthy S.D.S1* and Prasanna Reddy.B2
|Corresponding Author: Murthy S.D.S, E-mail: [email protected]|
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In this review an attempt has been made to explain the various types of phycobiliproteins and their functions in cyanobacteria. These phycobiliproteins contain linear tetrapyrrole rings attached to apoprotein through thioether linkage. They are involved in the transfer of light energy from phycobiliproteins to chlorophyll a of photosystem II. In addition, they vary the pigment content in response to variation in light quality. Phycobilisomes also act as nitrogen reservoir and help the organism to meet stress conditions.