RT journal article
T1 Erato polymnioides – A novel Hg hyperaccumulator plant in ecuadorian rainforest acid soils with potential of microbe-associated phytoremediation
A1 Chamba, Irene
A1 Rosado, Daniel
A1 Kalinhoff, Carolina
A1 Thangaswamy, Selvaraj
A1 Sánchez-Rodríguez, Aminael
A1 Gázquez González, Manuel Jesús
A2 Física Aplicada
K1 Heavy metals
K1 bioremediation
K1 pollution
K1 artisanal scale gold mining
K1 arbuscular mycorrhizal fungi
K1 southern Ecuador
AB Mercury (Hg) accumulation capacity was assessed in three plant species (Axonopus compressus, Erato polymnioides, and Miconia zamorensis) that grow on soils polluted by artisanal small-scale gold mines in the Ecuadorian rainforest. Individuals of three species were collected at two sampling zones: i) an intensive zone (IZ, 4.8 mg Hg kg−1 of soil) where gold extraction continues to occur, and ii) a natural zone (NZ, 0.19 mg Hg kg−1 of soil). In addition, the percentage of arbuscular mycorrhizal fungi (AMF) colonization was determined in plant roots and seven fungal morphotypes isolated from rhizospheric soil. Results suggest a facilitation role of native and pollution adapted AMF on Hg phytoaccumulation. E.g., E. polymnioides increased Hg accumulation when growing with greater AMF colonization. We concluded that E. polymnioides is a good candidate for the design of microbe-assisted strategies for Hg remediation at gold mining areas. The consortia between E. polymnioides and the AMF isolated in this study could be instrumental to get a deeper understanding of the AMF role in Hg phytoaccumulation
PB Elsevier
SN 0045-6535
YR 2017
FD 2017-12
LK http://hdl.handle.net/10498/33544
UL http://hdl.handle.net/10498/33544
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026