Photosystem II (PSII) uses light energy to split water into chemical products that power the
planet. The stripped protons contribute to a membrane electrochemical potential before …

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 …

Photosystem II (PSII) of photosynthesis catalyzes one of the most challenging reactions in
nature, the light driven oxidation of water and release of molecular oxygen. PSII couples the …

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 …

Photosynthesis in plants and cyanobacteria involves two protein− cofactor complexes which
are denoted as photosystems (PS), PSII and PSI. These solar-energy converters have …

Photosystem II (PSII) is a multisubunit protein complex in cyanobacteria, algae and plants
that use light energy for oxidation of water and reduction of plastoquinone. The conversion …

The energy-converting redox enzymes perform productive reactions efficiently despite the
involvement of high energy intermediates in their catalytic cycles. This is achieved by kinetic …

The mechanism of charge recombination of the S2QA-state in photosystem II was
investigated by modifying the free energy gap between the quinone acceptor QA and the …

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