title: Variation in nitrogen source utilisation by nine Amanita muscaria genotypes from Australian Pinus radiata plantations.
abstract: The abilities of nine genotypes of Amanita muscaria (L.:Fr) Pers. to utilise a range of inorganic and organic nitrogen sources for growth was examined in axenic liquid cultures. Considerable intraspecific variation was observed in biomass yields on all substrates; however biomass yield was highest on glutamine and/or NH4+ for all genotypes. Yields on aspartic acid, glutamic acid and histidine were generally low relative to NH4+, while utilisation of arginine and glycine showed marked variation between genotypes. Eight genotypes produced significantly less biomass on bovine serum albumin than on NH4+, raising questions regarding classification of A. muscaria as a 'protein fungus'.
authors.affiliation: Mycorrhiza Research Group, Centre for Horticulture and Plant Science, University of Western Sydney, Parramatta Campus, Locked Bag 1797, NSW 1797, Penrith South DC, Australia.
authors.forename: Nicole A
authors.initials: NA
authors.lastname: Sawyer
authors.forename: Susan M
authors.initials: SM
authors.lastname: Chambers
authors.forename: John W G
authors.initials: JW
authors.lastname: Cairney
mesh_terms: D000545:Amanita / Q000378:metabolism*; D018533:Biomass; D014644:Genetic Variation; D005838:Genotype; D038821:Mycorrhizae / Q000378:metabolism* / Q000502:physiology; D009517:New South Wales; D009584:Nitrogen / Q000378:metabolism*; D028223:Pinus / Q000382:microbiology*; D014197:Trees / Q000382:microbiology* / Q000502:physiology
chemical_list: D009584:Nitrogen