Phytoextraction of Cadmium: Feasibility in Field Applications and Potential Use of Harvested Biomass

Sterckeman, Thibault; Puschenreiter, Markus

doi:10.1007/978-3-030-58904-2_15

Cited by 2 publications

(2 citation statements)

References 55 publications

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“…As a model species, it has considerably expanded our knowledge of metal hyperaccumulation and tolerance mechanisms (Assunção et al, 2018;Krämer, 2010;Peng et al, 2020;Verbruggen et al, 2018). Due to its abilities, N. caerulescens is also considered a promising candidate for field phytoextraction of Cd and/or Zn in moderately contaminated soils (Hammer and Keller, 2003;Jacobs et al, 2017Jacobs et al, , 2018aRosenfeld et al, 2018;Schwartz et al, 2003;Simmons et al, 2015;Sterckeman and Puschenreiter, 2018). Recent studies have been carried out to improve the efficiency of metal extraction by N. caerulescens, which depends on both shoot trace element concentrations and plant biomass, by (i) understanding the influence of edaphic conditions on the growth and accumulation of TEs (Jacobs et al, 2019;Wang et al, 2006;Yanai et al, 2006), (ii) initiating the selection of cultivars for field applications (Sterckeman et al, 2019), and (iii) testing and improving cultural practices (Jacobs et al, 2018b;Luo et al, 2019aLuo et al, , 2019bLuo et al, , 2020, including organic and inorganic fertilization (Jacobs et al, 2018a;Maxted et al, 2007a;Rees et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Dark septate endophytes isolated from non-hyperaccumulator plants can increase phytoextraction of Cd and Zn by the hyperaccumulator Noccaea caerulescens

Yung

Blaudez

Maurice

et al. 2021

Environ Sci Pollut Res

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Dark septate endophytes (DSEs) can improve plant stress tolerance by promoting growth and affecting element accumulation. Due to its ability to accumulate high Cd, Zn and Ni concentrations in its shoots, Noccaea caerulescens is considered a promising candidate for phytoextraction in the field. However, the ability of DSEs to improve trace element (TE) phytoextraction with N. caerulescens has not yet been studied. The aim of this study was therefore to determine the ability of five DSE strains, previously isolated from poplar roots collected at different TE-contaminated sites, to improve plant development, mineral nutrient status and metal accumulation by N. caerulescens during a pot experiment using two soils differing in their level of TE contamination. Microscopic observations revealed that the tested DSE strains effectively colonized the roots of N. caerulescens. In the highly contaminated (HC) soil, a threefold increase in root biomass was found in plants inoculated with the Leptodontidium sp. Pr30 strain compared to that in the non-inoculated condition; however, the plant nutrient status was not affected. In contrast, the two strains Phialophora mustea Pr27 and Leptodontidium sp. Me07 had positive effects on the mineral nutrient status of plants without significantly modifying their biomass. Compared to non-inoculated plants cultivated on HC soil, Pr27-and Pr30-inoculated plants extracted more Zn (+30%) and Cd (+90%), respectively. In conclusion, we demonstrated that the responses of N. caerulescens to DSE inoculation ranged from neutral to beneficial and we identified two strains (i.e., Leptodontidium sp. (Pr30) and Phialophora mustea (Pr27)) isolated from poplar that appeared promising as they increased the amounts of Zn and Cd extracted by improving plant growth and/or TE accumulation by N. caerulescens. These results generate interest in further characterizing the DSEs that naturally colonize N. caerulescens and testing their ability to improve phytoextraction.

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Section: Introductionmentioning

confidence: 99%

Dark septate endophytes isolated from non-hyperaccumulator plants can increase phytoextraction of Cd and Zn by the hyperaccumulator Noccaea caerulescens

Yung

Blaudez

Maurice

et al. 2021

Environ Sci Pollut Res

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“…Contrary to conventional (physicochemical) techniques, it has the advantage of being applicable in situ on a large surface and of preserving the structure and microbial properties of the soil (Bert et al 2017). However, field trials or commercial operations using phytoextraction are not widely implemented (Robinson et al 2006;Jacobs et al 2017;Grignet et al 2020;Sterckeman and Puschenreiter 2021). Currently, only the Ni hyperaccumulator Alyssum sp.…”

Section: Introductionmentioning

confidence: 99%

Phytoextraction of Zn and Cd with Arabidopsis halleri: a focus on fertilization and biological amendment as a means of increasing biomass and Cd and Zn concentrations

Grignet

Sahraoui

Teillaud

et al. 2021

Environ Sci Pollut Res

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The current work aims to investigate the influence of fertilization (fertilizer) and fungal inoculation (Funneliformis mosseae and Serendipita indica (formerly Piriformospora indica), respectively arbuscular mycorrhizal (AMF) and endophytic fungi) on the phytoextraction potential of Arabidopsis halleri (L.) O'Kane & Al-Shehbaz (biomass yield and/or aboveground part Zn and Cd concentrations) over one life plant cycle. The mycorrhizal rates of A. halleri were measured in situ while the fungal inoculation experiments were carried out under controlled conditions. For the first time, it is demonstrated that the fertilizer used on A. halleri increased its biomass not only at the rosette stage but also at the flowering and fruiting stages. Fertilizer reduced the Zn concentration variability between developmental stages and increased the Cd concentration at fruiting stage. A. halleri roots did not show AMF colonization at any stage in our field conditions, neither in the absence nor in the presence of fertilizer, thus suggesting that A. halleri is not naturally mycorrhizal. Induced mycorrhization agreed with this result. However, S. indica has been shown to successfully colonize A. halleri roots under controlled conditions. This study confirms the benefit of using fertilizer to increase the phytoextraction potential of A. halleri. Overall, these results contribute to the future applicability of A. halleri in a phytomanagement strategy by giving information on its cultural itinerary.

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Phytoextraction of Cadmium: Feasibility in Field Applications and Potential Use of Harvested Biomass

Cited by 2 publications

References 55 publications

Dark septate endophytes isolated from non-hyperaccumulator plants can increase phytoextraction of Cd and Zn by the hyperaccumulator Noccaea caerulescens

Dark septate endophytes isolated from non-hyperaccumulator plants can increase phytoextraction of Cd and Zn by the hyperaccumulator Noccaea caerulescens

Phytoextraction of Zn and Cd with Arabidopsis halleri: a focus on fertilization and biological amendment as a means of increasing biomass and Cd and Zn concentrations

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