Title

Natural variants of photosystem II subunit D1 tune photochemical fitness to solar intensity

Document Type

Article

Publication Date

2-22-2013

Abstract

Background: Cyanobacteria use multiple PSII-D1 isoforms to adapt to environmental conditions. Results: D1:2 achieves higher quantum efficiency of water oxidation and biomass accumulation rate at high light versus D1:1; the latter is more efficient at low light due to less charge recombination. Conclusion: A functional advantage for D1:1 is revealed for the first time. Significance: Improved photochemical efficiency at low light suggests an evolutionary advantage to retain D1:1. © 2013 by The American Society for Biochemistry and Molecular Biology, Inc.

Publication Source (Journal or Book title)

Journal of Biological Chemistry

First Page

5451

Last Page

5462

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