Copper compartmentalization in spores as a survival strategy of arbuscular mycorrhizal fungi in Cu-polluted environments

被引：88

作者：

Cornejo, P. ^{[1
]}

Perez-Tienda, J. ^{[2
]}

Meier, S. ^{[1
]}

Valderas, A. ^{[2
]}

Borie, F. ^{[1
]}

Azcon-Aguilar, C. ^{[2
]}

Ferrol, N. ^{[2
]}

机构：

[1] Univ La Frontera, Dept Ciencias Quim & Recursos Nat Sci & Technol B, BIOREN UFRO, Temuco, Chile

[2] CSIC, Dept Microbiol Suelo & Sistemas Simbiot, Estn Expt Zaidin, E-18008 Granada, Spain

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2013年 / 57卷

关键词：

Arbuscular mycorrhiza; Claroideoglomus claroideum; Cu pollution; Glomeromycotan spores; Heavy metal tolerance; Metal compartmentalization; Rhizophagus irregular's; EXTRARADICAL MYCELIUM; METALS; GEOMYCOLOGY; TOLERANCE; TRANSPORT;

D O I：

10.1016/j.soilbio.2012.10.031

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Arbuscular mycorrhizal (AM) fungi are present in Cu-polluted soils. By using in vivo cultures of Claroideoglomus claroideum in association with Imperata condensata and monoxenic cultures of Rhizophagus irregularis in association with carrot roots we show for the first time the presence of AM fungal spores of a green-blue colour in Cu-polluted environments. In both experiments, the number of green-blue spores increased with Cu concentration in the soil or in the culture medium. The green-blue colour was associated with an accumulation of Cu in the spore cytoplasm. These spores were metabolically inactive. These data suggest that a fungal strategy to survive in Cu-polluted environments is to compartmentalize the excess metal in some spores. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：925 / 928

页数：4

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