Additional file 5: of Maize male sterile 33 encodes a putative glycerol-3-phosphate acyltransferase that mediates anther cuticle formation and microspore development

Figure S3. Transmission electron microscopy of pollen exine in the wild type and ms33. (a) and (b), early uninucleate stage; (c) and (d), late uninucleate stage; (e) and (f), binucleate stage. Ex, exine. Bar = 500 nm in (a), (b), and (c), 1 μm in (d), (e) and (f). (TIF 1738 kb)