title: Ultrastructural organization of two tapetal types in angiosperms.
abstract: The development of preparation techniques that include freeze fracturing provide an ideal method for studying the differentiation of plant tissues in the scanning electron microscope. This is illustrated with reference to tapetal development in Catananche caerulea, which has a plasmodial tapetum, and in Lolium perenne, which has a secretory tapetum.
authors.affiliation: Natural History Museum, London, United Kingdom.
authors.forename: S H
authors.initials: SH
authors.lastname: Barnes
authors.forename: S
authors.initials: S
authors.lastname: Blackmore
mesh_terms: D005614:Freeze Fracturing; D008855:Microscopy, Electron, Scanning / Q000379:methods; D012639:Seeds / Q000648:ultrastructure*