title: [Effects of companion fungus on several enzymatic activities of Grofola umbellata].
abstract: OBJECTIVE
  To study the effect of companion fungus on several enzymatic activities of Grifola umbellata.
  
  
  METHODS
  Chitinase, beta-1,3-glucanase, proteinase and extracellular enzymes of G. umbellata were measured during dual culturing with companion fungus.
  
  
  RESULTS
  Companion fungus could induce the increase of chitinase and beta-1, 3-glucanase activities of G. umbellata. noevident changeswere found in proteinase activity. When in liquid culture, the activities of extracellular enzymes in dual cultured filtrate were between of these of G. umbellata and companion fungus in monocultures.
  
  
  CONCLUSIONS
  Sclerotia differentiation related materials supplied by mutual nutritional supplement between G. umbellata and companion fungus conduce to sclerotial formation of G. umbellata.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China.
authors.forename: Xiao-ke
authors.initials: XK
authors.lastname: Xing
authors.forename: Shun-xing
authors.initials: SX
authors.lastname: Guo
mesh_terms: D004156:Catechol Oxidase / Q000032:analysis; D002688:Chitinases / Q000032:analysis*; D018920:Coculture Techniques; D043326:Glucan 1,3-beta-Glucosidase / Q000032:analysis*; D048691:Grifola / Q000254:growth & development / Q000502:physiology*; D010447:Peptide Hydrolases / Q000032:analysis; D011124:Polyporaceae / Q000201:enzymology* / Q000254:growth & development
chemical_list: D004156:Catechol Oxidase; D002688:Chitinases; D043326:Glucan 1,3-beta-Glucosidase; D010447:Peptide Hydrolases