Metal Accumulation by Woody Species on Contaminated Sites in the North of France

Migeon, Aude; Richaud, Pierre; Guinet, Frédéric; Chalot, Michel; Blaudez, Damien

doi:10.1007/s11270-009-0029-5

Cited by 104 publications

(71 citation statements)

References 43 publications

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“…Indeed, Vandecasteele et al (2003) of Cd and Zn in poplar leaves measured at the end of growing seasons were reported in several studies performed at moderately contaminated sites (Laureysens et al, 2004;Madejón et al, 2012;Mertens et al, 2004;Pottier et al, 2015). In our study, foliar Cd concentrations were strongly correlated with foliar Zn concentrations in both clones and sites (r ranged from 0.74 to 0.92, p < 0.01) as reported in various studies on poplar (Lettens et al, 2011;Migeon et al, 2009;Pottier et al, 2015). Although Cd is not an essential element for plant nutrition, it may be transferred to plants with similar mechanisms to Zn, as it is chemically and physically similar to Zn (Kabata-Pendias, 2010b).…”

Section: Accumulation Of Major and Trace Elements In Poplar Leavessupporting

confidence: 88%

Effect of mycorrhizal inoculation on metal accumulation by poplar leaves at phytomanaged sites

Phanthavongsa

Chalot

Papin

et al. 2017

Environmental and Experimental Botany

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This study aimed at evaluating the mid-term effect of ecto-and endomycorrhizal inoculation on the reduction of PTE mobility in soils and foliar accumulation by two poplar clones, Skado (Populus trichocarpa x P. maximowiczii) and I-214 (P. deltoides x P. nigra), dedicated to bioenergy purposes. The effects of inoculation were investigated in two large scale trials of 1 ha each. Poplars grown on highly contaminated soils accumulated excessive Cd and Zn in leaves compared with those planted on less contaminated soils, and the I-214 clone generally accumulated less PTEs than the Skado clone. Interestingly, the filtering capacity of mycorrhizal fungi was significant for Zn, Cu, Pb and Cr in Skado leaves only at the most contaminated areas after two growing seasons. These foliar concentrations were not correlated with Ca(NO3)2-extractable concentrations in soils, suggesting that mycorrhizal fungi limited PTE translocation from roots to leaves without impacting PTE mobility in soils. Therefore, the reduction of PTE accumulation in poplar leaves may be optimized by selecting appropriate combinations of cultivars and inocula at specific PTE levels and soil conditions.Because Cd and Zn may pose a risk after leaf abscission and wood harvest, further research is needed to efficiently reduce Cd and Zn concentrations in poplar tissues. Otherwise, the phytomanagement of metal contaminated sites with poplars should include options to safely manage both leaves and wood.

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Section: Accumulation Of Major and Trace Elements In Poplar Leavessupporting

confidence: 88%

Effect of mycorrhizal inoculation on metal accumulation by poplar leaves at phytomanaged sites

Phanthavongsa

Chalot

Papin

et al. 2017

Environmental and Experimental Botany

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“…Populus is now increasingly utilised for reforestation of post-agricultural land, recultivation of areas degraded by industry or environmental pollution, and as a renewable source of biomass for bioenergy production (Capuana 2011). Poplars are ideal candidates for use in phytoremediation of metal-contaminated sites, as they meet several requirements: high biomass production usable for renewable energy production, fast growth, a deep and widespread root system, and excellent metal tolerance and accumulation capacities (Migeon et al 2009;Capuana 2011;Migeon et al 2012). Moreover, poplar is a model species for molecular studies of woody plants (Tuskan et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, poplar is a model species for molecular studies of woody plants (Tuskan et al 2006). Researchers have mainly focused their studies on the above-ground parts of poplar trees, analysing their responses to environmental factors (Migeon et al 2009;Capuana 2011;Migeon et al 2012). …”

Section: Introductionmentioning

confidence: 99%

New mutualistic fungal endophytes isolated from poplar roots display high metal tolerance

et al. 2016

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This study aimed to isolate, identify, and characterise metal-tolerant fungi colonising poplar roots at a metalcontaminated phytoremediation site. Poplar roots were colonised by arbuscular mycorrhizal, ectomycorrhizal, and endophytic fungi, and the species were determined by ITS molecular analyses. Eight different isolates were successfully isolated into pure culture. Three isolates belonging to the Helotiales (P02, P06) and the Serendipita vermifera species (P04) were highly tolerant to metals (Cd, Zn, Pb, and Cu) compared to the mycorrhizal Hebeloma isolates. The three isolates degraded complex carbohydrates, such as xylan and cellulose, indicating that they could partially degrade root cell walls and penetrate into cells. This hypothesis was confirmed by further in vitro re-synthesis experiments, which showed that the three isolates colonised root tissues of poplar plantlets whereas two of them formed microsclerotia-like structures. Taken together, these results suggest an endophytic lifestyle of these isolates. This is the first evidence of S. vermifera as a root endophyte of poplar. A new endophytic putative species belonging to the Helotiales and closely related to Leohumicola is also reported. Interestingly, and when compared to mock-inoculated plants, both P06 and P04 isolates increased the number of root tips of inoculated poplar plantlets in vitro. Moreover, the S. vermifera P04 isolate also increased the shoot biomass. The results are discussed in relation to the potential use of endophytic strains for tree-based phytoremediation of metal-contaminated sites.

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“…So far, poplar and willow have been used successfully for the phytoremediation of various contaminated sites [11][12][13][14][15]. For example, poplar and willow planted on heavy metals-contaminated sites in the north of France accumulate Cd in the range from 13 to 44 mg·kg −1 (dry weight) in leaves and from 9 to 15 mg·kg −1 in stems, and these Cd concentrations are significantly higher than in the other species investigated (oak and birch) [14].…”

Section: Introductionmentioning

confidence: 96%

“…Among various plant species used for phytoremediation, the focus has been recently to research endophytes within the poplar and willow species since they grow rapidly, have many roots and produce high biomass [8][9][10]. So far, poplar and willow have been used successfully for the phytoremediation of various contaminated sites [11][12][13][14][15]. For example, poplar and willow planted on heavy metals-contaminated sites in the north of France accumulate Cd in the range from 13 to 44 mg·kg −1 (dry weight) in leaves and from 9 to 15 mg·kg −1 in stems, and these Cd concentrations are significantly higher than in the other species investigated (oak and birch) [14].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Nitrogen and Phosphorus Removal by Woody Plants with Deep-Planting Technique for the Potential Environmental Management of Carcass Burial Sites

et al. 2017

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Phytoremediation is a promising technology to remediate carcass burial sites where deep soil layers are contaminated with nitrogen (N), phosphorus (P) and other potential contaminants by leachate. The current study was conducted to examine the remedial efficiency of two different woody plants, poplar (Populus euramericana) and willow (Salix alba), by employing the deep-planting technique for the enhanced removal of N and P for the soil affected by leachate. For this, pot trials to assess N and P removal efficiency of poplar and willow in liquid manure-applied soil, and pilot-scale column experiments to evaluate the suitability of the deep-planting technique for the enhanced phytoremediation of deep soil layer were conducted. The results of this study showed that poplar and willow removed N and P from soils effectively while surviving under deep-planting conditions. Notably, compared to the surface planted roots, the roots of the deep-planted poplar and willow could transfer significant amounts of N and P leachate from the deep soil layer to the rhizosphere, from where it can be absorbed by the plants. For the first time, the use of poplar or willow plants are recommended by employing the deep-planting technique for the successful remediation of carcass burial sites.

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Metal Accumulation by Woody Species on Contaminated Sites in the North of France

Cited by 104 publications

References 43 publications

Effect of mycorrhizal inoculation on metal accumulation by poplar leaves at phytomanaged sites

Effect of mycorrhizal inoculation on metal accumulation by poplar leaves at phytomanaged sites

New mutualistic fungal endophytes isolated from poplar roots display high metal tolerance

Enhanced Nitrogen and Phosphorus Removal by Woody Plants with Deep-Planting Technique for the Potential Environmental Management of Carcass Burial Sites

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