Hyperaccumulation of silver by Amanita strobiliformis and related species of the section Lepidella

被引：68

作者：

Borovicka, Jan ^{[1
,2
]}

Randa, Zdenek ^{[2
]}

Jelinek, Emil ^{[1
]}

Kotrba, Pavel ^{[3
]}

Dunn, Colin E.

机构：

[1] Charles Univ Prague, Inst Geochem Mineral & Mineral Resources, CZ-12843 Prague 2, Czech Republic

[2] Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic

[3] Acad Sci Czech Republ, Inst Chem Technol, Dept Biochem & Microbiol, CZ-16628 Prague 6, Czech Republic

来源：

MYCOLOGICAL RESEARCH | 2007年 / 111卷

关键词：

bioaccumulation; ectomycorrhizal fungi; geomycology; metals selenium;

D O I：

10.1016/j.mycres.2007.08.015

中图分类号：

Q93 [微生物学];

学科分类号：

071005 [微生物学]; 100705 [微生物与生化药学];

摘要：

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 mg kg(-1) Ag). The Ag contents of both Amanita species were mostly in the range of 200-700 mg kg(-1) D.W. With the highest Ag content of 1253 mg kg(-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. (C) 2007 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

引用

页码：1339 / 1344

页数：6

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