They have cores of allophycocyanin with radiating rods composed of discs of phycocyanin and phycoerythrin. Linker polypeptides attach the core to the thylakoid membranes. These structures, 20-70 nm across, contain the pigments named above that transfer light energy to chlorophyll A.
Origin: Gr. Soma = body
(14 Oct 1997)
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