title: Observation of a new EPR transient in chloroplasts that may reflect the electron donor to photosystem II at room temperature.
mesh_terms: D002736:Chloroplasts / Q000378:metabolism* / Q000648:ultrastructure; D003624:Darkness; D004578:Electron Spin Resonance Spectroscopy; D004579:Electron Transport; D008027:Light; D008433:Mathematics; D008872:Microwaves; D010785:Photophosphorylation; D010944:Plants; D013696:Temperature; D013997:Time Factors