The photosystem II protein complex now shared by various lineages of cyanobacteria, algae and land plants has served as a major site of oxygen production throughout the history of life on Earth ...

is that conifers change the structure of their thylakoid membranes—where photosynthesis takes place—making Photosystem I (PSI) and Photosystem II (PSII), which otherwise by large remain ...

The high resolution structure of photsystem I reveals an asymmetry in the organization of its cofactors that has ramifications for the path of electron flow. Figure 1: A schematic diagram of the ...