Diversity of arbuscular mycorrhizal fungi in metal polluted and EDTA washed garden soils before and after soil revitalization with commercial and indigenous fungal inoculum

Maček, Irena; Šibanc, Nataša; Kavšček, Martin; Leštan, Domen

doi:10.1016/j.ecoleng.2016.06.026

Cited by 28 publications

(38 citation statements)

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“…This very low or erratic occurrence of arbuscules could be attributed to several factors among which is the presence of pollutants as suggested by Cabello (1997) . Interestingly, in soils contaminated by heavy metals, both Sonjak et al (2009) and Maček et al (2016) reported a low frequency or absence of arbuscules in the roots of plants naturally colonizing these soils.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungal Community Composition in Carludovica palmata, Costus scaber and Euterpe precatoria from Weathered Oil Ponds in the Ecuadorian Amazon

et al. 2017

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Arbuscular mycorrhizal fungi (AMF) are ubiquitous to most natural and anthropized ecosystems, and are often found in polluted environments. However, their occurrence and community composition in highly weathered petroleum-polluted soils has been infrequently reported. In the present study, two ponds of weathered crude oil and their surrounding soil from the Charapa field in the Amazon region of Ecuador were selected and root colonization by AMF of their native plants investigated. The AMF community was further analyzed in three selected plant species (i.e., Carludovica palmata, Costus scaber and Euterpe precatoria) present in the two ponds and the surrounding soil. A fragment covering partial SSU, the whole ITS and partial LSU rDNA region was amplified (i.e., 1.5 kb), cloned and sequenced from the roots of each host species. AMF root colonization exceeded 56% in all plant species examined and no significant difference was observed between sites or plants. For AMF community analysis, a total of 138 AMF sequences were obtained and sorted into 32 OTUs based on clustering (threshold ≥97%) by OPTSIL. The found OTUs belonged to the genera Rhizophagus (22%), Glomus (31%), Acaulospora (25%) and Archaeospora (22%). Glomus and Archaeospora were always present regardless of the plant species or the site. Acaulospora was found in the three plant species and in the two ponds while Rhizophagus was revealed only in the surrounding soil in one plant species (Euterpe precatoria). Our study contributed to the molecular community composition of AMF and revealed an unexpected high presence of four AMF genera which have established a symbiosis with roots of native plants from the Amazon forest under high polluted soil conditions.

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Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungal Community Composition in Carludovica palmata, Costus scaber and Euterpe precatoria from Weathered Oil Ponds in the Ecuadorian Amazon

et al. 2017

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“…In addition to using indigenous inocula (Turnau et al 2008), a growing number of inocula are being marketed which may help to restore functionality of remediated soil. Indeed, Macek et al (2014) characterised the biodiversity of AM fungi in a pot experiment by examination of 16S rRNA clone libraries, both in metal-polluted soil from Meža Valley and EDTA-remediated soil, before and after inoculation with indigenous and commercial inoculum. They found a significant increase in root colonisation with AM fungi in remediated soil after inoculation.…”

Section: Effect Of Remediated Soil On Soil Biologicalmentioning

confidence: 99%

Remediation of Toxic Metal-Contaminated Soil Using EDTA Soil Washing

Leštan

2015

Soil Biology

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“…In addition to the high extraction efficiency of EDTA washing, ex situ soil treatments technologies are the most invasive soil treatments (Koptsik, 2014). The additional chemical treatment further contributes to fundamental alteration of the soil physical, chemical, and biological properties (Jelusic et al, 2014a(Jelusic et al, , 2014bKaurin et al, 2018;Maček et al, 2016). The complexation of metal cations by EDTA is non-selective and leads not only to the mobilization and subsequent extraction of PTMs but will also remove macro and micro nutrients (Dermont et al, 2008;Jelusic, et al, 2014aJelusic, et al, , 2014b.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chelant-Based Soil Washing and Post-Treatment on Pb, Cd, and Zn Bioavailability and Plant Uptake

Noller

Friesl-Hanl

Hood‐Nowotny

et al. 2021

Water Air Soil Pollut

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The remediation of Pb, Cd, and Zn contaminated soil by ex situ EDTA washing was investigated in two pot experiments. We tested the influence of (i) 0, 0.5, 1.0, and 1.5%wt zero-valent iron (ZVI) and (ii) a combination of 5%wt vermicompost, 2%wt biochar, and 1%wt ZVI on the metal availability in EDTA-washed soil using different soil extracts (Aqua regia, NH4NO3) and plant concentrations. We found that EDTA soil washing significantly reduced the total concentration of Pb, Cd, and Zn and significantly reduced the Cd and Zn plant uptake. Residual EDTA was detected in water extracts causing the formation of highly available Pb-EDTA complexes. While organic amendments had no significant effect on Pb behavior in washed soils, an amendment of ≥ 1%wt ZVI successfully reduced EDTA concentrations, Pb bioavailability, and plant uptake. Our results suggest that Pb-EDTA complexes adsorb to a Fe oxyhydroxide layer, quickly developing on the ZVI surface. The increase in ZVI application strongly decreases Zn concentrations in plant tissue, whereas the uptake of Cd was not reduced, but even slightly increased. Soil washing did not affect plant productivity and organic amendments improved biomass production.

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Diversity of arbuscular mycorrhizal fungi in metal polluted and EDTA washed garden soils before and after soil revitalization with commercial and indigenous fungal inoculum

Cited by 28 publications

References 50 publications

Arbuscular Mycorrhizal Fungal Community Composition in Carludovica palmata, Costus scaber and Euterpe precatoria from Weathered Oil Ponds in the Ecuadorian Amazon

Arbuscular Mycorrhizal Fungal Community Composition in Carludovica palmata, Costus scaber and Euterpe precatoria from Weathered Oil Ponds in the Ecuadorian Amazon

Remediation of Toxic Metal-Contaminated Soil Using EDTA Soil Washing

Effect of Chelant-Based Soil Washing and Post-Treatment on Pb, Cd, and Zn Bioavailability and Plant Uptake

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