>Jonathan B. Marder wrote:
>I speculate that some of the chlorophyll antenna proteins were originally
>"shade" proteins with carotenoid-based NPQ permanently switched on. These
>evolved into antennae once plants learned to control the degree of NPQ.
>This is of course HIGHLY speculative:)
>This is, however, consistent with the increase in quantum yield for
photosynthesis from absorption by carotenoids as evolution proceeded from
algae to land plants.
John Markwell markwell at unl.edu
Department of Biochemistry Phone: 402-472-2924
Beadle Center FAX: 402-472-7842
Univeristy of Nebraska
Lincoln, NE 68588-0664