A photosynthetic organism is subjected to photo-oxidative stress when more light energy is
absorbed than is used in photosynthesis. In the light, highly reactive singlet oxygen can be …

High-light illumination of photosynthetic organisms stimulates the production of singlet
oxygen by photosystem II (PSII) and causes photo-oxidative stress. In the PSII reaction …

Our current understanding of the PSII reaction centre owes a great deal to comparisons to
the simpler and better understood, purple bacterial reaction centre. Here we provide an …

The photosystem II core complex is the water: plastoquinone oxidoreductase of oxygenic
photosynthesis situated in the thylakoid membrane of cyanobacteria, algae and plants. It …

The catalytic site for photosynthetic water oxidation is embedded in a protein matrix
consisting of nearly 30 different polypeptides. Residues from several of these polypeptides …

The tetranuclear manganese cluster in photosystem II is ligated by one or more histidine
residues, as shown by an electron spin echo envelope modulation (ESEEM) study …

Cytochrome b559 (cyt b559) is a heme-bridged protein heterodimer in photosystem II (PSII)
of all oxygenic photosynthetic organisms. In spite of the fact that cyt b559 is strictly required …

The formation of the (Mn4–Ca) center of the water oxidation complex (WOC) of Photosystem
II (PSII) occurs via a complex post-translational assembly pathway involving the proteolytic …

The photosystem II (PSII) complex of photosynthetic oxygen evolving membranes comprises
a number of small proteins whose functions remain unknown. Here we report that the low …

Redox properties of cytochrome b 559 (Cyt b 559) and cytochrome c 550 (Cyt c 550) have
been studied by using highly stable photosystem II (PSII) core complex preparations from a …