Espécies tropicais de pteridófitas em associação com fungos micorrízicos arbusculares em solo contaminado com arsênio

Química Nova

Jerusa Schneider²  Letúzia Maria De Oliveira²  Luiz Roberto Guimarães Guilherme²  Sidney Luiz Stürmer¹  Cláudio Roberto Fonsêca Sousa Soares¹ 

[1] ,Universidade Federal de Lavras Departamento de Ciência do Solo Lavras MG ,Brasil

关键词: mycorrhiza;    phytoremediation;    gold mining;   

DOI  :  10.1590/S0100-40422012000400010

来源: SciELO

【 摘 要 】

The symbiosis of plants with mycorrhizal fungi represents an alternative to be considered during the processes of revegetation and rehabilitation of arsenic-contaminated soil. The aim of this study was to evaluate under greenhouse conditions the effect of arsenic on the mycorrhizal association of two species of tropical fern (Thelypteris salzmannii and Dicranopteris flexuosa). T. salzmannii had higher rates of colonization and higher density of spores while D. flexuosa showed greater sensitivity to smaller concentrations of arsenic and association with mycorrhizal fungi. Our results indicate that screening and selection of mycorrhizal fungal isolates/species is possible and effective for phytoremediation of arsenic-contaminated soils.

【 授权许可】

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