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Corzo-Remigio A, Harris HH, Kidman CJ, Nkrumah PN, Casey LW, Paterson DJ, Edraki M, van der Ent A. Mechanisms of Uptake and Translocation of Thallium in Brassica Vegetables: An X-ray Fluorescence Microspectroscopic Investigation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:2373-2383. [PMID: 38271998 DOI: 10.1021/acs.est.3c08113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Most nonoccupational human exposure to thallium (Tl) occurs via consumption of contaminated food crops. Brassica cultivars are common crops that can accumulate more than 500 μg Tl g-1. Knowledge of Tl uptake and translocation mechanisms in Brassica cultivars is fundamental to developing methods to inhibit Tl uptake or conversely for potential use in phytoremediation of polluted soils. Brassica cultivars (25 in total) were subjected to Tl dosing to screen for Tl accumulation. Seven high Tl-accumulating varieties were selected for follow-up Tl dosing experiments. The highest Tl accumulating Brassica cultivars were analyzed by synchrotron-based micro-X-ray fluorescence to investigate the Tl distribution and synchrotron-based X-ray absorption near-edge structure spectroscopy (XANES) to unravel Tl chemical speciation. The cultivars exhibited different Tl tolerance and accumulation patterns with some reaching up to 8300 μg Tl g-1. The translocation factors for all the cultivars were >1 with Brassica oleracea var. acephala (kale) having the highest translocation factor of 167. In this cultivar, Tl is preferentially localized in the venules toward the apex and along the foliar margins and in minute hot spots in the leaf blade. This study revealed through scanning electron microscopy and X-ray fluorescence analysis that highly Tl-enriched crystals occur in the stoma openings of the leaves. The finding is further validated by XANES spectra that show that Tl(I) dominates in the aqueous as well as in the solid form. The high accumulation of Tl in these Brassica crops has important implications for food safety and results of this study help to understand the mechanisms of Tl uptake and translocation in these crops.
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Affiliation(s)
- Amelia Corzo-Remigio
- Centre for Water in the Minerals Industry, Sustainable Minerals Institute, The University of Queensland, Brisbane 4072, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, Adelaide 5005, Australia
| | - Clinton J Kidman
- Department of Chemistry, The University of Adelaide, Adelaide 5005, Australia
| | - Philip Nti Nkrumah
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane 4072, Australia
| | - Lachlan W Casey
- Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane 4072, Australia
| | | | - Mansour Edraki
- Centre for Water in the Minerals Industry, Sustainable Minerals Institute, The University of Queensland, Brisbane 4072, Australia
| | - Antony van der Ent
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane 4072, Australia
- Laboratory of Genetics, Wageningen University and Research, Wageningen 6708, The Netherlands
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Smieska L, Guerinot ML, Olson Hoal K, Reid M, Vatamaniuk O. Synchrotron science for sustainability: life cycle of metals in the environment. Metallomics 2023; 15:mfad041. [PMID: 37370221 DOI: 10.1093/mtomcs/mfad041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
The movement of metals through the environment links together a wide range of scientific fields: from earth sciences and geology as weathering releases minerals; to environmental sciences as metals are mobilized and transformed, cycling through soil and water; to biology as living things take up metals from their surroundings. Studies of these fundamental processes all require quantitative analysis of metal concentrations, locations, and chemical states. Synchrotron X-ray tools can address these requirements with high sensitivity, high spatial resolution, and minimal sample preparation. This perspective describes the state of fundamental scientific questions in the lifecycle of metals, from rocks to ecosystems, from soils to plants, and from environment to animals. Key X-ray capabilities and facility infrastructure for future synchrotron-based analytical resources serving these areas are summarized, and potential opportunities for future experiments are explored.
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Affiliation(s)
- Louisa Smieska
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
| | - Mary Lou Guerinot
- Department of Biological Sciences, Dartmouth College, Hanover, NH 03755, USA
| | - Karin Olson Hoal
- Department of Earth & Atmospheric Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Matthew Reid
- School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Olena Vatamaniuk
- School of Integrative Plant Science Plant Biology Section, Cornell University, Ithaca NY 14853, USA
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Fehlauer T, Collin B, Angeletti B, Negahi MM, Dentant C, Chaurand P, Lallemand C, Levard C, Rose J. Multiscale imaging on Saxifraga paniculata provides new insights into yttrium uptake by plants. Sci Rep 2022; 12:18268. [PMID: 36310318 PMCID: PMC9618566 DOI: 10.1038/s41598-022-23107-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 10/25/2022] [Indexed: 12/31/2022] Open
Abstract
Yttrium (Y) has gained importance in high tech applications and, together with the other rare earth elements (REEs), is also considered to be an emerging environmental pollutant. The alpine plant Saxifraga paniculata was previously shown to display high metal tolerance and an intriguing REE accumulation potential. In this study, we analysed soil grown commercial and wild specimens of Saxifraga paniculata to assess Y accumulation and shed light on the uptake pathway. Laser ablation inductively coupled plasma mass spectrometry and synchrotron-based micro X-ray fluorescence spectroscopy was used to localise Y within the plant tissues and identify colocalized elements. Y was distributed similarly in commercial and wild specimens. Within the roots, Y was mostly located in the epidermis region. Translocation was low, but wild individuals accumulated significantly more Y than commercial ones. In plants of both origins, we observed consistent colocalization of Al, Fe, Y and Ce in all plant parts except for the hydathodes. This indicates a shared pathway during translocation and could explained by the formation of a stable organic complex with citrate, for example. Our study provides important insights into the uptake pathway of Y in S. paniculata, which can be generalised to other plants.
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Affiliation(s)
- Till Fehlauer
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Blanche Collin
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Bernard Angeletti
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Mohammad Mustafa Negahi
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Cédric Dentant
- Parc national des Écrins, Domaine de Charance, 05000 Gap, France ,grid.4444.00000 0001 2112 9282Univ. Grenoble Alpes, CNRS, Sciences Po Grenoble, Pacte, 38000 Grenoble, France
| | - Perrine Chaurand
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Claire Lallemand
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Clement Levard
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
| | - Jérôme Rose
- grid.498067.40000 0001 0845 4216Aix Marseille Univ., CNRS, IRD, INRAE, Coll. France, CEREGE, Aix-en-Provence, France
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