Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326486
Type: Artigo
Title: Arbuscular Mycorrhizal Fungi-assisted Phytoremediation Of A Lead-contaminated Site
Author: Schneider
Jerusa; Bundschuh
Jochen; Araujo do Nascimento
Clistenes Williams
Abstract: Knowledge of the behavior of plant species associated with arbuscular mycorrhizal fungi (AMF) and the ability of such plants to grow onmetal-contaminated soils is important to phytoremediation. Here, we evaluate the occurrence and diversity of AMF and plant species as well as their interactions in soil contaminated with lead (Pb) from the recycling of automotive batteries. The experimental area was divided into three locations: a non-contaminated native area, a coarse rejects deposition area, and an area receiving particulate material fromthe chimneys during the Pb melting process. Thirty-nine AMF species from six families and 10 genera were identified. The Acaulospora and Glomus genera exhibited the highest occurrences both in the bulk (10 and 6) and in the rhizosphere soils (9 and 6). All of the herbaceous species presented mycorrhizal colonization. The highest Pb concentrations (mg kg(-1)) in roots and shoots, respectively, were observed in Vetiveria zizanoides (15,433 and 934), Pteris vitata (9343 and 865), Pteridim aquilinun (1433 and 733), and Ricinus communis (1106 and 625). The diversity of AMF seems to be related to the area heterogeneity; the structure communities of AMF are correlated with the soil Pb concentration. We found that plant diversity was significantly correlated with AMF diversity (r = 0.645; P > 0.05) in areas with high Pb soil concentrations. A better understanding of AMF communities in the presence of Pb stress may shed light on the interactions between fungi and metals taking place in contaminated sites. Such knowledge can aid in developing soil phytoremediation techniques such as phytostabilization. (C) 2016 Elsevier B.V. All rights reserved.
Subject: Biodiversity
Root Symbiosis
Phytoremediation
Environmental Management
Metal Stress
Soil Contamination
Editor: Elsevier Science BV
Amsterdam
Rights: fechado
Identifier DOI: 10.1016/j.scitotenv.2016.07.185
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0048969716316394
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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