title: Protoplasmic extrusion of pollen grains--an electron microscope study.
mesh_terms: D003593:Cytoplasm; D007249:Inflammation; D008247:Lysosomes / Q000201:enzymology; D008854:Microscopy, Electron; D009504:Neutrophils / Q000201:enzymology; D011058:Pollen / Q000166:cytology*; D012463:Saliva