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Murawska-Wlodarczyk K, van der Ent A, Wlodarczyk T, Słomka A, Paterson DJ, Brueckner D, Przybyłowicz WJ, Mesjasz-Przybyłowicz J, Ryan CC, Maier RM, Babst-Kostecka A. Habitat-specific allocations of elements in Atriplex lentiformis seeds indicate adaptation to metal toxicity. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:5076-5090. [PMID: 38761108 DOI: 10.1093/jxb/erae229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 05/16/2024] [Indexed: 05/20/2024]
Abstract
Self-sustaining vegetation in metal-contaminated areas is essential for rebuilding ecological resilience and community stability in degraded lands. Metal-tolerant plants originating from contaminated post-mining areas may hold the key to successful plant establishment and growth. Yet, little is known about the impact of metal toxicity on reproductive strategies, metal accumulation, and allocation patterns at the seed stage. Our research focused on the metal tolerant Atriplex lentiformis. Specifically, we examined the effects of toxic metal(loid) concentration in soils on variability in its reproductive strategies, including germination patterns, elemental uptake, and allocation within the seeds. We employed advanced imaging techniques like synchrotron X-ray fluorescence microscopy (2D scans and 3D tomograms) combined with inductively coupled plasma mass spectrometry to reveal significant differences in metal(loid) concentration and distribution within the seed structures of A. lentiformis from contrasting habitats. Exclusive Zn hotspots of high concentrations were found in the seeds of the metallicolous accession, primarily in the sensitive tissues of shoot apical meristems and root zones of the seed embryos. Our findings offer novel insights into phenotypic variability and metal tolerance and accumulation in plants from extreme environments. This knowledge can be applied to enhance plant survival and performance in land restoration efforts.
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Affiliation(s)
| | - Antony van der Ent
- Laboratory of Genetics, Wageningen University and Research, Wageningen, The Netherlands
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, St Lucia, Queensland, Australia
- Laboratoire Sols et Environnement, INRAE, Université de Lorraine, Nancy, France
| | - Tomasz Wlodarczyk
- Department of Environmental Science, The University of Arizona, Tucson, AZ, USA
| | - Aneta Słomka
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University, Krakow, Poland
| | | | | | - Wojciech J Przybyłowicz
- AGH University of Science and Technology, Faculty of Physics & Applied Computer Science, Krakow, Poland
- Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
| | | | - Chris C Ryan
- CSIRO, Mineral Resources, Clayton, Victoria, Australia
| | - Raina M Maier
- Department of Environmental Science, The University of Arizona, Tucson, AZ, USA
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Kushwaha P, Tran A, Quintero D, Song M, Yu Q, Yu R, Downes M, Evans RM, Babst-Kostecka A, Schroeder JI, Maier RM. Zinc accumulation in Atriplex lentiformis is driven by plant genes and the soil microbiome. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 899:165667. [PMID: 37478925 PMCID: PMC10529914 DOI: 10.1016/j.scitotenv.2023.165667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 06/22/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
Successful phytoremediation of acidic metal-contaminated mine tailings requires amendments to condition tailings properties prior to plant establishment. This conditioning process is complex and includes multiple changes in tailings bio-physico-chemical properties. The objective of this project is to identify relationships between tailings properties, the soil microbiome, and plant stress response genes during growth of Atriplex lentiformis in compost-amended (10 %, 15 %, 20 % w/w) mine tailings. Analyses include RNA-Seq for plant root gene expression, 16S rRNA amplicon sequencing for bacterial/archaeal communities, metal concentrations in both tailings and plant organs, and phenotypic measures of plant stress. Zn accumulation in A. lentiformis leaves varied with compost levels and was the highest in the intermediate treatment (15 %, TC15). Microbial analysis identified Alicyclobacillus, Hydrotalea, and Pseudolabrys taxa with the highest relative abundance in TC15, and these taxa were strongly associated with Zn accumulation. Furthermore, we identified 190 root genes with significant gene expression changes. These root genes were associated with different pathways including, abscisic acid and auxin signaling, defense responses, ion channels, metal ion binding, oxidative stress, transcription regulation, and transmembrane transport. However, root gene expression changes were not driven by the increasing levels of compost. For example, there were 15 genes that were up-regulated in TC15, whereas 106 genes were down-regulated in TC15. The variables analyzed explained 86 % of the variance in Zn accumulation in A. lentiformis leaves. Importantly, Zn accumulation was driven by Zn shoot concentrations, leaf stress symptoms, plant root genes, and microbial taxa. Therefore, our results suggest there are strong plant-microbiome associations that drive Zn accumulation in A. lentiformis and different plant gene pathways are involved in alleviating varying levels of metal stress. Future work is needed to gain a mechanistic understanding of these plant-microbiome interactions to optimize phytoremediation strategies as they will govern the success or failure of the revegetation process.
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Affiliation(s)
- Priyanka Kushwaha
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA.
| | - Alexandria Tran
- School of Biological Sciences, Department of Cell and Developmental Biology & Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Diego Quintero
- School of Biological Sciences, Department of Cell and Developmental Biology & Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Miranda Song
- School of Biological Sciences, Department of Cell and Developmental Biology & Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Qi Yu
- School of Biological Sciences, Department of Cell and Developmental Biology & Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Ruth Yu
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Michael Downes
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ronald M Evans
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Alicja Babst-Kostecka
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA
| | - Julian I Schroeder
- School of Biological Sciences, Department of Cell and Developmental Biology & Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Raina M Maier
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA
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Klimek B, Stępniewska K, Seget B, Pandey VC, Babst-Kostecka A. Diversity and activity of soil biota at a post-mining site highly contaminated with Zn and Cd are enhanced by metallicolous compared to non-metallicolous Arabidopsis halleri ecotypes. LAND DEGRADATION & DEVELOPMENT 2023; 34:1538-1548. [PMID: 37485419 PMCID: PMC10358741 DOI: 10.1002/ldr.4551] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 11/23/2022] [Indexed: 07/25/2023]
Abstract
Hyperaccumulators' ability to take up large quantities of harmful heavy metals from contaminated soils and store them in their foliage makes them promising organisms for bioremediation. Here we demonstrate that some ecotypes of the zinc hyperaccumulator Arabidopsis halleri are more suitable for bioremediation than others, because of their distinct influence on soil biota. In a field experiment, populations originating from metal-polluted and unpolluted soils were transplanted to a highly contaminated metalliferous site in Southern Poland. Effects of plant ecotypes on soil biota were assessed by measurements of feeding activity of soil fauna (bait-lamina test) and catabolic activity and functional diversity of soil bacteria underneath A. halleri plants (Biolog® ECO plates). Chemical soil properties, plant morphological parameters, and zinc concentration in shoots and roots were additionally evaluated. Higher soil fauna feeding activity and higher bacterial community functional diversity were found in soils affected by A. halleri plants originating from metallicolous compared to non-metallicolous ecotypes. Differences in community-level physiological profiles further evidenced changes in microbial communities in response to plant ecotype. These soil characteristics were positively correlated with plant size. No differences in zinc content in shoots and roots, zinc translocation ratio, and plant morphology were observed between metallicolous and non-metallicolous plants. Our results indicate strong associations between A. halleri ecotype and soil microbial community properties. In particular, the improvement of soil biological properties by metallicolous accessions should be further explored to optimize hyperaccumulator-based bioremediation technologies.
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Affiliation(s)
- Beata Klimek
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, Poland
| | - Klaudia Stępniewska
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, Poland
| | - Barbara Seget
- Botany Institute, Polish Academy of Science, Kraków, Poland
| | - Vimal Chandra Pandey
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, India
| | - Alicja Babst-Kostecka
- Department of Environmental Science, The University of Arizona, Tucson, Arizona, USA
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Yang J, Huang Y, Zhao G, Li B, Qin X, Xu J, Li X. Phytoremediation potential evaluation of three rhubarb species and comparative analysis of their rhizosphere characteristics in a Cd- and Pb-contaminated soil. CHEMOSPHERE 2022; 296:134045. [PMID: 35183585 DOI: 10.1016/j.chemosphere.2022.134045] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/04/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Screening or breeding exceptional plant species for heavy metal phytoremediation is as important as adopting feasible measures to enhance phytoremediation efficiency, which are largely based on clarifying the mechanisms of heavy metal tolerance and accumulation by plants. In this study, cadmium (Cd) and lead (Pb) tolerance and accumulation characteristics of Rheum officinale, R. palmatum, and R. tanguticum were analysed to assess their phytoremediation potential. The seed germination test indicated that these three rhubarb species could tolerate 10 mg L-1 Cd and 100 mg L-1 Pb. However, when sown in Cd- and Pb-contaminated soil, all three rhubarb species exhibited a relatively high Cd accumulation capacity but a considerably low Pb accumulation capacity according to the bioconcentration factors of Cd (0.42-0.47 in shoots and 0.11-0.15 in roots) and Pb (0.004-0.008 in shoots and 0.007-0.013 in roots). The high Cd translocation factors (3.04-4.24) indicated that these three rhubarb species were suitable for Cd phytoextraction. The changes in rhizospheric physicochemical indices were generally similar among the three rhubarb plants in comparison with those of the unplanted soil. However, differential indicator rhizobacteria were identified for the three rhubarb plants, which may be primarily attributed to their different root system characteristics. These enriched rhizobacteria included many plant growth-promoting bacteria, and several of them were also involved in regulating heavy metal uptake by plants, indicating that three rhubarb species likely recruit differentially beneficial rhizobacteria to maintain plant growth and vitality and to regulate heavy metal uptake in the Cd- and Pb-polluted soil. This study identifies new candidate plant resources for the phytoremediation of Cd-polluted soils and provides novel insights into understanding the interactions among heavy metals, rhizobacteria, and plants.
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Affiliation(s)
- Jingya Yang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe, 654400, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yingqi Huang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe, 654400, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gaojuan Zhao
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe, 654400, China
| | - Boqun Li
- Science and Technology Information Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiangshi Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jianchu Xu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe, 654400, China.
| | - Xiong Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe, 654400, China; Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
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Cybulska P, Legrand YM, Babst-Kostecka A, Diliberto S, Leśniewicz A, Oliviero E, Bert V, Boulanger C, Grison C, Olszewski TK. Green and Effective Preparation of α-Hydroxyphosphonates by Ecocatalysis. Molecules 2022; 27:3075. [PMID: 35630556 PMCID: PMC9146293 DOI: 10.3390/molecules27103075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 11/29/2022] Open
Abstract
A green and effective approach for the synthesis of structurally diversed α-hydroxyphosphonates via hydrophosphonylation of aldehydes under solventless conditions and promoted by biosourced catalysts, called ecocatalysts "Eco-MgZnOx" is presented. Ecocatalysts were prepared from Zn-hyperaccumulating plant species Arabidopsis halleri, with simple and benign thermal treatment of leaves rich in Zn, and without any further chemical treatment. The elemental composition and structure of Eco-MgZnOx were characterized by MP-AES, XRPD, HRTEM, and STEM-EDX techniques. These analyses revealed a natural richness in two unusual and valuable mixed zinc-magnesium and iron-magnesium oxides. The ecocatalysts were employed in this study to demonstrate their potential use in hydrophosphonylation of aldehydes, leading to various α-hydroxyphosphonate derivatives, which are critical building blocks in the modern chemical industry. Computational chemistry was performed to help discriminate the role of some of the constituents of the mixed oxide ecocatalysts. High conversions, broad substrate scope, mild reaction conditions, and easy purification of the final products together with simplicity of the preparation of the ecocatalysts are the major advantages of the presented protocol. Additionally, Eco-MgZnOx-P could be recovered and reused for up to five times.
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Affiliation(s)
- Pola Cybulska
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Yves-Marie Legrand
- Bio-Inspired Chemistry and Ecological Innovations (ChimEco), UMR 5021 CNRS, University of Montpellier, Cap Delta, 1682 rue de la Valsière, 34790 Grabels, France;
| | - Alicja Babst-Kostecka
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA;
| | - Sébastien Diliberto
- Institut Jean Lamour, UMR 7198 CNRS, University of Lorraine, 57000 Metz, France; (S.D.); (C.B.)
| | - Anna Leśniewicz
- Analytical Chemistry and Chemical Metallurgy Division, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Erwan Oliviero
- ICGM, University of Montpellier, CNRS, 34090 Montpellier, France;
| | - Valérie Bert
- Clean Technologies and Circular Economy Unit, SIT Department, INERIS, Parc Technologique Alata BP 2, 60550 Verneuil en Halatte, France;
| | - Clotilde Boulanger
- Institut Jean Lamour, UMR 7198 CNRS, University of Lorraine, 57000 Metz, France; (S.D.); (C.B.)
| | - Claude Grison
- Bio-Inspired Chemistry and Ecological Innovations (ChimEco), UMR 5021 CNRS, University of Montpellier, Cap Delta, 1682 rue de la Valsière, 34790 Grabels, France;
| | - Tomasz K. Olszewski
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
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Murawska-Wlodarczyk K, Korzeniak U, Chlebicki A, Mazur E, Dietrich CC, Babst-Kostecka A. Metalliferous habitats and seed microbes affect the seed morphology and reproductive strategy of Arabidopsis halleri. PLANT AND SOIL 2022; 472:175-192. [PMID: 36389645 PMCID: PMC9648182 DOI: 10.1007/s11104-021-05203-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/22/2021] [Indexed: 05/13/2023]
Abstract
Purpose Plant reproduction in metalliferous habitats is challenged by elevated concentrations of metal trace elements in soil. As part of their survival strategy, metal-tolerant plants have adjusted reproductive traits, including seed morphology, dormancy, and germination rate. These traits are particularly relevant, yet poorly understood, in metal hyperaccumulators that are promising candidates for phytoremediation. Methods We assessed seed shape characteristics, dormancy, and germination rate in the hyperaccumulating model species Arabidopsis halleri. Seed morphological parameters were evaluated using seeds collected from two metalliferous and two non-metalliferous sites (~ 1000 seeds per location). We also addressed the potential influence of seed surface-associated microbes and endophytic fungi on germination success. Results Seeds from non-metallicolous populations were on average 18% bigger than those from metal-contaminated post-mining sites, which contrasts the general expectation about reproductive parts in metallicolous plants. Irrespective of their origin, surface-sterilized seeds had up to ~ 20% higher germination rates and germinated earlier than non-sterilized seeds, hinting at a negative effect of seed-associated microbial communities. Surface sterilization also facilitated the emergence of an endophytic fungus (Aspergillus niger) that is a known seed-borne pathogen. Interestingly, A. niger actually promoted germination in surface-sterilized seeds from some locations. Conclusion Despite species-wide metal tolerance in A. halleri, metalliferous conditions seem to differently affect reproductive traits compared to non-metalliferous environments (e.g., smaller seeds). Yet, higher germination rates in these populations hint at the potential of A. halleri to successfully colonize post-mining habitats. This process is modulated by site-specific interactions with seed microbiota.
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Affiliation(s)
| | - Urszula Korzeniak
- Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences, Krakow, Poland
| | - Andrzej Chlebicki
- Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences, Krakow, Poland
| | - Edyta Mazur
- Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences, Krakow, Poland
| | - Charlotte C Dietrich
- Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences, Krakow, Poland
| | - Alicja Babst-Kostecka
- Department of Environmental Science, The University of Arizona, Tucson, AZ, USA
- Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences, Krakow, Poland
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Kushwaha P, Neilson JW, Maier RM, Babst-Kostecka A. Soil microbial community and abiotic soil properties influence Zn and Cd hyperaccumulation differently in Arabidopsis halleri. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:150006. [PMID: 34487902 PMCID: PMC8595848 DOI: 10.1016/j.scitotenv.2021.150006] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 05/14/2023]
Abstract
Soil contamination with trace metal(loid) elements (TME) is a global concern. This has focused interest on TME-tolerant plants, some of which can hyperaccumulate extraordinary amounts of TME into above-ground tissues, for potential treatment of these soils. However, intra-species variability in TME hyperaccumulation is not yet sufficiently understood to fully harness this potential. Particularly, little is known about the rhizosphere microbial communities associated with hyperaccumulating plants and whether or not they facilitate TME uptake. The aim of this study is to characterize the diversity and structure of Arabidopsis halleri rhizosphere-influenced and background (i.e., non-Arabidopsis) soil microbial communities in four plant populations with contrasting Zn and Cd hyperaccumulation traits, two each from contaminated and uncontaminated sites. Microbial community properties were assessed along with geographic location, climate, abiotic soil properties, and plant parameters to explain variation in Zn and Cd hyperaccumulation. Site type (TME-contaminated vs. uncontaminated) and location explained 44% of bacterial/archaeal and 28% of fungal community variability. A linear discriminant effect size (LEfSe) analysis identified a greater number of taxa defining rhizosphere microbial communities than associated background soils. Further, in TME-contaminated soils, the number of rhizosphere-defining taxa was 6-fold greater than in the background soils. In contrast, the corresponding ratio for uncontaminated sites, was 3 and 1.6 for bacteria/archaea and fungi, respectively. The variables analyzed explained 71% and 76% of the variance in Zn and Cd hyperaccumulation, respectively; however, each hyperaccumulation pattern was associated with different variables. A. halleri rhizosphere fungal richness and diversity associated most strongly with Zn hyperaccumulation, whereas soil Cd and Zn bioavailability had the strongest associations with Cd hyperaccumulation. Our results indicate strong associations between A. halleri TME hyperaccumulation and rhizosphere microbial community properties, a finding that needs to be further explored to optimize phytoremediation technology that is based on hyperaccumulation.
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Affiliation(s)
- Priyanka Kushwaha
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA
| | - Julia W Neilson
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA
| | - Raina M Maier
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA
| | - Alicja Babst-Kostecka
- Department of Environmental Science, The University of Arizona, Tucson, AZ 85721, USA; W. Szafer Institute of Botany, Polish Academy of Sciences, Department of Ecology, Lubicz 46, 31-512 Krakow, Poland.
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