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Optical identification of the long-wavelength (700-1700 nm) electronic excitations of the native reaction centre, Mn 4 CaO 5 cluster and cytochromes of photosystem II in plants and cyanobacteria

Morton, Jennifer; Akita, Fusamichi; Nakajima, Yoshiki; Shen, Jian-Ren; Krausz, Elmars


Visible/UV absorption in PS II core complexes is dominated by the chl-a absorptions, which extend to ~ 700 nm. A broad 700-730 nm PS II core complex absorption in spinach has been assigned [1] to a charge transfer excitation between ChlD1 and ChlD2. Emission from this state, which peaks at 780 nm, has been seen [2] for both plant and cyanobacterial samples. We show that Thermosynechococcus vulcanus PS II core complexes have parallel absorbance in the 700-730 nm region and similar photochemical...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Biochimica et Biophysica Acta: Bioenergetics
DOI: 10.1016/j.bbabio.2014.11.003


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