title: Hyperaccumulation of silver by Amanita strobiliformis and related species of the section Lepidella.
abstract: Two ectomycorrhizal macrofungal Amanita species of the section Lepidella, A. strobiliformis and A. solitaria, were found to hyperaccumulate silver (Ag). All samples were collected from non-argentiferous areas with background Ag content in soils (0.07-1.01 mgkg(-1) Ag). The Ag contents of both Amanita species were mostly in the range of 200-700 mgkg(-1)D.W. with the highest Ag content of 1253 mgkg(-1) in one sample of A. strobiliformis. Silver concentrations in macrofungal fruit bodies were commonly 800-2500 times higher than in underlying soils. A. strobiliformis and A. solitaria are the first eukaryotic organisms known to hyperaccumulate Ag.
authors.affiliation: Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, CZ-12843 Prague 2, Czech Republic. jan.borovicka@myko.cz
authors.forename: Jan
authors.initials: J
authors.lastname: Borovicka
authors.forename: Zdenek
authors.initials: Z
authors.lastname: Randa
authors.forename: Emil
authors.initials: E
authors.lastname: Jelínek
authors.forename: Pavel
authors.initials: P
authors.lastname: Kotrba
authors.forename: Colin E
authors.initials: CE
authors.lastname: Dunn
mesh_terms: D000545:Amanita / Q000145:classification* / Q000254:growth & development / Q000378:metabolism*; D048690:Fruiting Bodies, Fungal / Q000378:metabolism; D038821:Mycorrhizae; D012643:Selenium / Q000737:chemistry / Q000378:metabolism; D012834:Silver / Q000737:chemistry / Q000378:metabolism*; D012987:Soil / Q000032:analysis
chemical_list: D012987:Soil; D012834:Silver; D012643:Selenium