Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
Volume 152, Issue -, Pages 261-271Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotobiol.2015.08.001
Keywords
Electron donor; Photo-CIDNP; Photosynthesis; Photosystem I; Photosystem II; Redox potential; Solid-state NMR
Categories
Funding
- NWO grant [713.012.001]
- FOM grant [10TBSC23]
- DFG grant [MA 4972/2-1]
- German Academic Exchange Service (DAAD)
Ask authors/readers for more resources
Both photosystem I and photosystem II are considerably similar in molecular architecture but they operate at very different electrochemical potentials. The origin of the different redox properties of these RCs is not yet clear. In recent years, insight was gained into the electronic structure of photosynthetic cofactors through the application of photochemically induced dynamic nuclear polarization (photo-CIDNP) with magic-angle spinning NMR (MAS NMR). Non-Boltzmann populated nuclear spin states of the radical pair lead to strongly enhanced signal intensities that allow one to observe the solid-state photo-CIDNP effect from both photosystem I and II from isolated reaction center of spinach (Spinacia oleracea) and duckweed (Spirodela oligorrhiza) and from the intact cells of the cyanobacterium Synechocystis by C-13 and N-15 MAS NMR. This review provides an overview on the photo-CIDNP MAS NMR studies performed on PSI and PSII that provide important ingredients toward reconstruction of the electronic structures of the donors in PSI and PSII. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available