title: [Studies on the morphology of fruit-body developing of Polyporus umbellatus].
abstract: OBJECTIVE
  Studying the fruit-body development of polyporus umbellatus to reveal the life-cycle of this medicinal fungus.
  
  
  METHODS
  Parts of materials treated by paraffin section, and examined under a light microscope; parts of materials by ultrathin section and observation under transmission electron microscope (TEM).
  
  
  RESULTS
  The fruit-body consists of trimitic hyphae, including generative hyphae, skeletal hyphae and binding hyphae. Generative hyphae are characterized by thin walls, dense cytoplasmic contents. Skeletal hyphae are unbranched, thick-walled, and of a narrow lumen. Binding hyphae are much-branched, tending to weave themselves among the other hyphase of flesh. The morphology of basidiospore development was also discussed in this paper.
  
  
  CONCLUSIONS
  The trimitic hyphae are the main component parts in the different developing stages of fruit-body of polyporus umbellatus.
authors.affiliation: Institute of Medicinal Plant, CAMS and PUMC, Beijing 100094.
authors.forename: S
authors.initials: S
authors.lastname: Guo
authors.forename: J
authors.initials: J
authors.lastname: Xu
authors.forename: P
authors.initials: P
authors.lastname: Xiao
mesh_terms: D010946:Plants, Medicinal; D011124:Polyporaceae / Q000254:growth & development*