title: X-ray microanalytical study of Mn and Fe compartmentation in maize chloroplasts.
abstract: X-ray microanalysis of mesophyll and bundle sheath maize chloroplasts showed that bound manganese is located within thylakoids, whereas bound iron is equally present in thylakoids and stroma. A simple correlation between manganese content and oxygen evolution capacity (Photosystem II activity) is unlikely since Mn is also present in bundle sheath thylakoids of low Photosystem II activity. A major part of manganese has probably a distinct function and only a minor part plays a role in the process of oxygen evolution.
mesh_terms: D002736:Chloroplasts / Q000032:analysis* / Q000648:ultrastructure; D007501:Iron / Q000032:analysis*; D008345:Manganese / Q000032:analysis*; D008854:Microscopy, Electron; D010944:Plants; D013057:Spectrum Analysis; D003313:Zea mays
chemical_list: D008345:Manganese; D007501:Iron