Aa. Moskalenko et Nv. Karapetyan, STRUCTURAL ROLE OF CAROTENOIDS IN PHOTOSYNTHETIC MEMBRANES, Zeitschrift fur Naturforschung. C, A journal of biosciences, 51(11-12), 1996, pp. 763-771
Besides the light-harvesting and protecting role, carotenoids are also
instrumental as structural components for the assembly of light-harve
sting complexes in purple bacteria and green plants, as well as for th
e formation of photosystem II complex. Carotenoids stabilize those pig
ment-protein complexes, but have no effect on the formation of the rea
ction centers of purple bacteria and photosystem I of plants.