title: Dimorphism in Benjaminiella poitrasii: cell wall chemistry of parent and two stable yeast mutants.
abstract: In the dimorphic zygomycetous fungus Benjaminiella poitrasii, the cell wall compositions of mycelial phase (M), yeast phase (Y) and its yeast form mutants (Y-2 and Y-5) were studied. Chitosan was abundant in M-phase (26.6%) whereas lesser amounts were present in Y-phase (17.3%) and in mutants Y-2 (19.6%) or Y-5 (17.3%). Although chitin was present as a smaller fraction of the total glucosaminoglycan in each of different cell wall preparations, it was almost 3 times more prevalent in M-phase than the Y-phase cells. Cross-linking studies among the various cell wall components in B. poitrasii, suggest linkages among mannans and proteins and glucans and glucosaminoglycans.
authors.affiliation: Division of Biochemical Sciences, National Chemical Laboratory, Pune, India.
authors.forename: A
authors.initials: A
authors.lastname: Khale
authors.forename: M V
authors.initials: MV
authors.lastname: Deshpande
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002241:Carbohydrates / Q000032:analysis*; D002473:Cell Wall / Q000737:chemistry*; D002686:Chitin / Q000031:analogs & derivatives* / Q000032:analysis*; D048271:Chitosan; D003432:Cross-Linking Reagents; D003470:Culture Media; D005656:Fungal Proteins / Q000032:analysis*; D005936:Glucans / Q000032:analysis; D006025:Glycosaminoglycans / Q000032:analysis; D006868:Hydrolysis; D008351:Mannans / Q000032:analysis; D009090:Mucorales / Q000737:chemistry* / Q000235:genetics; D009154:Mutation
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D003432:Cross-Linking Reagents; D003470:Culture Media; D005656:Fungal Proteins; D005936:Glucans; D006025:Glycosaminoglycans; D008351:Mannans; C020341:glucosaminoglycans; D002686:Chitin; D048271:Chitosan