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metadata.artigo.dc.title: Arbuscular mycorrhizal fungi in arsenic-contaminated areas in Brazil
metadata.artigo.dc.creator: Schneider, Jerusa
Stürmer, Sidney Luiz
Guilherme, Luiz Roberto Guimarães
Moreira, Fatima Maria de Souza
Soares, Claudio Roberto Fonsêca de Sousa
metadata.artigo.dc.subject: Species diversity
Gold mining
Arbuscular mycorrhizal fungi
Soil - Arsenic contamination
Diversidade de espécies
Mineração de ouro
Fungos micorrízicos arbusculares
metadata.artigo.dc.publisher: Elsevier 15-Nov-2013
metadata.artigo.dc.identifier.citation: SCHNEIDER, J. et al. Arbuscular mycorrhizal fungi in arsenic-contaminated areas in Brazil. Journal of Hazardous Materials, Amsterdam, v. 262, p. 1105-1115, 15 Nov. 2013.
metadata.artigo.dc.description.abstract: Arbuscular mycorrhizal fungi (AMF) are ubiquitous and establish important symbiotic relationships with the majority of the plants, even in soils contaminated with arsenic (As). In order to better understand the ecological relationships of these fungi with excess As in soils and their effects on plants in tropical conditions, occurrence and diversity of AMF were evaluated in areas affected by gold mining activity in Minas Gerais State, Brazil. Soils of four areas with different As concentrations (mg dm−3) were sampled: reference Area (10); B1 (subsuperficial layer) (396); barren material (573), and mine waste (1046). Soil sampling was carried out in rainy and dry seasons, including six composite samples per area (n = 24). AMF occurred widespread in all areas, being influenced by As concentrations and sampling periods. A total of 23 species were identified, belonging to the following genus: Acaulospora (10 species), Scutellospora (4 species), Racocetra (3 species), Glomus (4 species), Gigaspora (1 species) and Paraglomus (1 species). The most frequent species occurring in all areas were Paraglomus occultum, Acaulospora morrowiae and Glomus clarum. The predominance of these species indicates their high tolerance to excess As. Although arsenic contamination reduced AMF species richness, presence of host plants tended to counterbalance this reduction.
metadata.artigo.dc.language: en_US
Appears in Collections:DCS - Artigos publicados em periódicos

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