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Arbuscular mycorrhizal fungi-assisted phytoremediation of a lead-contaminated site
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. University of Southern Queensland, West Street, Toowoomba, QLD, Australia. (International Groundwater Arsenic Research Group)ORCID iD: 0000-0002-4900-5633
2016 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 572, p. 86-97Article in journal (Refereed) Published
Abstract [en]

Knowledge of the behavior of plant species associated with arbuscular mycorrhizal fungi (AMF) and the ability of such plants to grow on metal-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 from the 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.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 572, p. 86-97
Keywords [en]
Biodiversity, Environmental management, Metal stress, Phytoremediation, Root symbiosis, Soil contamination, Bioremediation, Contamination, Fungi, Lead, Plants (botany), Pollution, Soils, Arbuscular mycorrhizal fungi, Assisted phytoremediation, Metal-contaminated soils, Mycorrhizal colonization, Soil pollution, Acaulospora, Glomus, Pteris, Ricinus communis, Vetiveria zizanioides
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-195187DOI: 10.1016/j.scitotenv.2016.07.185ISI: 000387807200010Scopus ID: 2-s2.0-84979888153OAI: oai:DiVA.org:kth-195187DiVA, id: diva2:1051657
Note

QC 20161202

Available from: 2016-12-02 Created: 2016-11-02 Last updated: 2017-11-29Bibliographically approved

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Bundschuh, Jochen

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