title: Preparation of an active, oxygen-evolving photosystem 2 particle from a blue-green alga.
mesh_terms: D000458:Cyanobacteria / Q000378:metabolism* / Q000648:ultrastructure; D010100:Oxygen / Q000378:metabolism; D010788:Photosynthesis; D013053:Spectrophotometry
chemical_list: D010100:Oxygen