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Goudard L, Blaudez D, Sirguey C, Purwadi I, Invernon V, Rouhan G, van der Ent A. Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries. ANNALS OF BOTANY 2024; 133:573-584. [PMID: 38310542 PMCID: PMC11037481 DOI: 10.1093/aob/mcae011] [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: 09/18/2023] [Accepted: 02/02/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND Rare earth elements (REEs) are increasingly crucial for modern technologies. Plants could be used as a biogeochemical pathfinder and a tool to extract REEs from deposits. However, a paucity of information on suitable plants for these tasks exists. METHODS We aimed to discover new REE-(hyper)accumulating plant species by performing an X-ray fluorescence (XRF) survey at the Herbarium of the Muséum national d'Histoire naturelle (MNHN, Paris, France). We selected specific families based on the likelihood of containing REE-hyperaccumulating species, using known taxa that accumulate REEs. A total of 4425 specimens, taken in the two main evolutionary lineages of extant vascular plants, were analysed, including the two fern families Blechnaceae (n = 561) and Gleicheniaceae (n = 1310), and the two flowering plant families Phytolaccaceae (n = 1137) and Juglandaceae (n = 1417). KEY RESULTS Yttrium (Y) was used as a proxy for REEs for methodological reasons, and a total of 268 specimens belonging to the genera Blechnopsis (n = 149), Dicranopteris (n = 75), Gleichenella (n = 32), Phytolacca (n = 6), Carya (n = 4), Juglans (n = 1) and Sticherus (n = 1) were identified with Y concentrations ranging from the limit of detection (LOD) >49 µg g-1 up to 1424 µg g-1. Subsequently, analysis of fragments of selected specimens by inductively coupled plasma atomic emission spectroscopy (ICP-AES) revealed that this translated to up to 6423 µg total REEs g-1 in Dicranopteris linearis and up to 4278 µg total REEs g-1 in Blechnopsis orientalis which are among the highest values ever recorded for REE hyperaccumulation in plants. It also proved the validity of Y as an indicator for REEs in XRF analysis of herbarium specimens. The presence of manganese (Mn) and zinc (Zn) was also studied by XRF in the selected specimens. Mn was detected in 1440 specimens ranging from the detection limit at 116 µg g-1 up to 3807 µg g-1 whilst Zn was detected in 345 specimens ranging from the detection limit at 77 µg g-1 up to 938 µg g-1. CONCLUSIONS AND IMPLICATIONS This study led to the discovery of REE accumulation in a range of plant species, substantially higher concentrations in species known to be REE hyperaccumulators, and records of REE hyperaccumulators outside of the well-studied populations in China.
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Affiliation(s)
- Léo Goudard
- Université de Lorraine, INRAE, LSE, F-54000, Nancy, France
| | - Damien Blaudez
- Université de Lorraine, CNRS, LIEC, F-54000, Nancy, France
| | | | - Imam Purwadi
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Australia
| | - Vanessa Invernon
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, École Pratique des Hautes Études, Université des Antilles, Paris, France
| | - Germinal Rouhan
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, École Pratique des Hautes Études, Université des Antilles, Paris, France
| | - Antony van der Ent
- Université de Lorraine, INRAE, LSE, F-54000, Nancy, France
- Laboratory of Genetics, Wageningen University and Research, Wageningen, The Netherlands
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Cui Z, He M, Chen B, Hu B. In-situ elemental quantitative imaging in plant leaves by LA-ICP-MS with matrix-matching external calibration. Anal Chim Acta 2023; 1275:341588. [PMID: 37524476 DOI: 10.1016/j.aca.2023.341588] [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: 03/28/2023] [Revised: 06/07/2023] [Accepted: 07/04/2023] [Indexed: 08/02/2023]
Abstract
Due to the enormous interest in plants related to bioscience, environmental and toxicological research, analytical methods are expected with the ability of getting information on elemental transfer, distribution and contents in plants. In this work, a mixture of gelatin (GA) and hydroxypropyl methyl cellulose (HPMC) was prepared to simulate plant matrix, a method based on laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with matrix-matching external calibration was proposed for direct quantification of multiple elements in plants. The composition of GA&HPMC substrate was optimized, such as the concentration of spiked nitric acid, the mass fraction of both GA and HPMC in the substrate and the mass ratio of GA: HPMC. After spiking elemental solution, coating the mixture onto a glass slide and drying overnight at room temperature, GA&HPMC substrate was obtained. The substrate obtained with GA: HPMC of 8: 2 was used to fabricate the standard series, which exhibited good elemental homogeneity and similar elemental signal intensities in LA-ICP-MS detection to that obtained for plant Certified Reference Material (CRM). CRMs of different plants including Citrus leaf (GBW10019), Tea (GBW07605), Beans (GBW10021) and Scallions (GBW10049) were further pressed into pellets and subjected to the proposed method, and the quantification accuracy was demonstrated. The limits of detections of this method were found to be 0.003 (Ce)-104 (Ca) μg g-1, with a wide linear range (0.01-10000 μg g-1) for 17 target elements. The application potential of the method was further demonstrated by performing elemental imaging in Trigonotis peduncularis leaves. Rapid in-situ quantitative imaging of Zn, Cu, Sr and Mn was achieved, and the elemental quantitative distributions were discussed. The constructed substrate helped direct elemental quantification in plants. It provided a powerful and efficient tool for the investigation of the distribution and transfer of elements in plants, favoring further exploration of elemental bioavailability, transport and toxicity mechanisms.
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Affiliation(s)
- Zewei Cui
- Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Man He
- Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Beibei Chen
- Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Bin Hu
- Department of Chemistry, Wuhan University, Wuhan, 430072, China.
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Purwadi I, Casey LW, Ryan CG, Erskine PD, van der Ent A. X-ray fluorescence spectroscopy (XRF) for metallome analysis of herbarium specimens. PLANT METHODS 2022; 18:139. [PMID: 36536435 PMCID: PMC9761992 DOI: 10.1186/s13007-022-00958-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 11/13/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND "Herbarium X-ray Fluorescence (XRF) Ionomics" is a new quantitative approach for extracting the elemental concentrations from herbarium specimens using handheld XRF devices. These instruments are principally designed for dense sample material of infinite thickness (such as rock or soil powder), and their built-in algorithms and factory calibrations perform poorly on the thin dry plant leaves encountered in herbaria. While empirical calibrations have been used for 'correcting' measured XRF values post hoc, this approach has major shortcomings. As such, a universal independent data analysis pipeline permitting full control and transparency throughout the quantification process is highly desirable. Here we have developed such a pipeline based on Dynamic Analysis as implemented in the GeoPIXE package, employing a Fundamental Parameters approach requiring only a description of the measurement hardware and derivation of the sample areal density, based on a universal standard. RESULTS The new pipeline was tested on potassium, calcium, manganese, iron, cobalt, nickel, and zinc concentrations in dry plant leaves. The Dynamic Analysis method can correct for complex X-ray interactions and performs better than both the built-in instrument algorithms and the empirical calibration approach. The new pipeline is also able to identify and quantify elements that are not detected and reported by the device built-in algorithms and provides good estimates of elemental concentrations where empirical calibrations are not straightforward. CONCLUSIONS The new pipeline for processing XRF data of herbarium specimens has a greater accuracy and is more robust than the device built-in algorithms and empirical calibrations. It also gives access to all elements detected in the XRF spectrum. The new analysis pipeline has made Herbarium XRF approach even more powerful to study the metallome of existing plant collections.
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Affiliation(s)
- Imam Purwadi
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Lachlan W Casey
- Centre for Microscopy and Microanalysis, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Chris G Ryan
- CSIRO, Mineral Resources, Clayton South, VIC, 3169, Australia
| | - Peter D Erskine
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Antony van der Ent
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, St Lucia, QLD, 4072, Australia.
- Laboratoire Sols et Environnement, INRAE, Université de Lorraine, Vandœuvre-lès-Nancy cedex, F-54505, France.
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Pinto Irish K, Harvey MA, Harris HH, Aarts MGM, Chan CX, Erskine PD, van der Ent A. Micro-analytical and molecular approaches for understanding the distribution, biochemistry, and molecular biology of selenium in (hyperaccumulator) plants. PLANTA 2022; 257:2. [PMID: 36416988 PMCID: PMC9684236 DOI: 10.1007/s00425-022-04017-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Micro-analytical techniques to untangle Se distribution and chemical speciation in plants coupled with molecular biology analysis enable the deciphering of metabolic pathways responsible for Se tolerance and accumulation. Selenium (Se) is not essential for plants and is toxic at high concentrations. However, Se hyperaccumulator plants have evolved strategies to both tolerate and accumulate > 1000 µg Se g-1 DW in their living above-ground tissues. Given the complexity of the biochemistry of Se, various approaches have been adopted to study Se metabolism in plants. These include X-ray-based techniques for assessing distribution and chemical speciation of Se, and molecular biology techniques to identify genes implicated in Se uptake, transport, and assimilation. This review presents these techniques, synthesises the current state of knowledge on Se metabolism in plants, and highlights future directions for research into Se (hyper)accumulation and tolerance. We conclude that powerful insights may be gained from coupling information on the distribution and chemical speciation of Se to genome-scale studies to identify gene functions and molecular mechanisms that underpin Se tolerance and accumulation in these ecologically and biotechnologically important plants species. The study of Se metabolism is challenging and is a useful testbed for developing novel analytical approaches that are potentially more widely applicable to the study of the regulation of a wide range of metal(loid)s in hyperaccumulator plants.
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Affiliation(s)
- Katherine Pinto Irish
- The University of Queensland, Sustainable Minerals Institute, Centre for Mined Land Rehabilitation, Brisbane, QLD, 4072, Australia
| | - Maggie-Anne Harvey
- The University of Queensland, Sustainable Minerals Institute, Centre for Mined Land Rehabilitation, Brisbane, QLD, 4072, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, Adelaide, SA, Australia
| | - Mark G M Aarts
- Laboratory of Genetics, Wageningen University and Research, Wageningen, The Netherlands
| | - Cheong Xin Chan
- The University of Queensland, School of Chemistry and Molecular Biosciences, Australian Centre for Ecogenomics, Brisbane, QLD, 4072, Australia
| | - Peter D Erskine
- The University of Queensland, Sustainable Minerals Institute, Centre for Mined Land Rehabilitation, Brisbane, QLD, 4072, Australia
| | - Antony van der Ent
- The University of Queensland, Sustainable Minerals Institute, Centre for Mined Land Rehabilitation, Brisbane, QLD, 4072, Australia.
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Fernando DRM, Ent A, Weerasinghe AS, Wijesundara DSA, Fernando GWAR, Fernando AE, Iqbal MCM, Miranda CH, Gosse JM, Samithri S, Rajakaruna N. Assessment of plant diversity and foliar chemistry on the Sri Lankan ultramafics reveals inconsistencies in the metal hyperaccumulator trait. Ecol Res 2021. [DOI: 10.1111/1440-1703.12282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Denise R. M. Fernando
- Department of Ecology, Environment and Evolution La Trobe University Bundoora Victoria Australia
| | - Antony Ent
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute The University of Queensland Brisbane Queensland Australia
| | | | | | | | - Anthony E. Fernando
- Ecolinc Science and Technology Innovations Centre Maddingley Victoria Australia
| | | | - Charlotte H. Miranda
- Natural Resources Management and Environmental Sciences Department California Polytechnic State University San Luis Obispo California USA
| | - Jordan M. Gosse
- Natural Resources Management and Environmental Sciences Department California Polytechnic State University San Luis Obispo California USA
| | - Sadhana Samithri
- Department of Botany, Matara Regional Centre The Open University of Sri Lanka Nugegoda Sri Lanka
| | - Nishanta Rajakaruna
- Biological Sciences Department California Polytechnic State University San Luis Obispo California USA
- Unit for Environmental Sciences and Management North‐West University Potchefstroom South Africa
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Belloeil C, Jouannais P, Malfaisan C, Fernández RR, Lopez S, Gutierrez DMN, Maeder-Pras S, Villanueva P, Tisserand R, Gallopin M, Alfonso-Gonzalez D, Marrero IMF, Muller S, Invernon V, Pillon Y, Echevarria G, Iturralde RB, Merlot S. The X-ray fluorescence screening of multiple elements in herbarium specimens from the Neotropical region reveals new records of metal accumulation in plants. Metallomics 2021; 13:6329692. [PMID: 34320190 DOI: 10.1093/mtomcs/mfab045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/16/2021] [Indexed: 01/15/2023]
Abstract
Plants have developed a diversity of strategies to take up and store essential metals in order to colonize various types of soils including mineralized soils. Yet, our knowledge of the capacity of plant species to accumulate metals is still fragmentary across the plant kingdom. In this study, we have used the X-Ray Fluorescence technology to analyze metal concentration in a wide diversity of species of the Neotropical flora that was not extensively investigated so far. In total, we screened more than 11 000 specimens representing about 5000 species from herbaria in Paris and Cuba. Our study provides a large overview of the accumulation of metals such as manganese, zinc and nickel in the Neotropical flora. We report 30 new nickel hyperaccumulating species from Cuba, including the first records in the families Connaraceae, Melastomataceae, Polygonaceae, Santalaceae and Urticaceae. We also identified the first species from this region of the world that can be considered as manganese hyperaccumulators in the genera Lomatia (Proteaceae), Calycogonium (Melastomataceae), Ilex (Aquifoliaceae), Morella (Myricaceae) and Pimenta (Myrtaceae). Finally, we report the first zinc hyperaccumulator, Rinorea multivenosa (Violaceae), from the Amazonas region. The identification of species able to accumulate high amounts of metals will become instrumental to support the development of phytotechnologies in order to limit the impact of soil metal pollution in this region of the world.
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Affiliation(s)
- Célestine Belloeil
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Pierre Jouannais
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Charles Malfaisan
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France.,Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Rolando Reyes Fernández
- Universidad Agraria de La Habana (UNAH), Facultad de Agronomía, Laboratorio Biotecnología Vegetal, Mayabeque, Cuba, CP: 32700
| | | | - Dulce Montserrat Navarrete Gutierrez
- Université de Lorraine, INRAE, Laboratoire Sols et Environnement (LSE), 54000 Nancy, France.,Universidad Autónoma de Chapingo, Texcoco de Mora, State of México, México
| | - Swann Maeder-Pras
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Paola Villanueva
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Romane Tisserand
- Université de Lorraine, INRAE, Laboratoire Sols et Environnement (LSE), 54000 Nancy, France
| | - Melina Gallopin
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | | | - Ilsa M Fuentes Marrero
- Instituto de Ecología y Sistemática, Ministerio de Ciencia, Tecnología y Medio Ambiente, La Habana, Cuba, C.P : 11900
| | - Serge Muller
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Vanessa Invernon
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Yohan Pillon
- Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), IRD, INRAE, CIRAD, Institut Agro, Univ. Montpellier, Montpellier, France
| | - Guillaume Echevarria
- Université de Lorraine, INRAE, Laboratoire Sols et Environnement (LSE), 54000 Nancy, France.,Centre for Mined Land Rehabilitation, SMI, University of Queensland, QLD 4072 St. Lucia, Australia
| | | | - Sylvain Merlot
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
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Albani Rocchetti G, Armstrong CG, Abeli T, Orsenigo S, Jasper C, Joly S, Bruneau A, Zytaruk M, Vamosi JC. Reversing extinction trends: new uses of (old) herbarium specimens to accelerate conservation action on threatened species. THE NEW PHYTOLOGIST 2021; 230:433-450. [PMID: 33280123 DOI: 10.1111/nph.17133] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/22/2020] [Indexed: 05/29/2023]
Abstract
Although often not collected specifically for the purposes of conservation, herbarium specimens offer sufficient information to reconstruct parameters that are needed to designate a species as 'at-risk' of extinction. While such designations should prompt quick and efficient legal action towards species recovery, such action often lags far behind and is mired in bureaucratic procedure. The increase in online digitization of natural history collections has now led to a surge in the number new studies on the uses of machine learning. These repositories of species occurrences are now equipped with advances that allow for the identification of rare species. The increase in attention devoted to estimating the scope and severity of the threats that lead to the decline of such species will increase our ability to mitigate these threats and reverse the declines, overcoming a current barrier to the recovery of many threatened plant species. Thus far, collected specimens have been used to fill gaps in systematics, range extent, and past genetic diversity. We find that they also offer material with which it is possible to foster species recovery, ecosystem restoration, and de-extinction, and these elements should be used in conjunction with machine learning and citizen science initiatives to mobilize as large a force as possible to counter current extinction trends.
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Affiliation(s)
| | | | - Thomas Abeli
- Department of Science, University Roma Tre, Viale G. Marconi 446, Roma, 00154, Italy
| | - Simone Orsenigo
- Department of Earth and Environmental Sciences, University of Pavia, Pavia, 27100, Italy
| | - Caroline Jasper
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Simon Joly
- Montreal Botanical Garden, Montréal, QC, H1X 2B2, Canada
- Département de Sciences Biologiques and Institut de Recherche en Biologie Végétale, Université de Montréal, Montréal, QC, H1X 2B2, Canada
| | - Anne Bruneau
- Département de Sciences Biologiques and Institut de Recherche en Biologie Végétale, Université de Montréal, Montréal, QC, H1X 2B2, Canada
| | - Maria Zytaruk
- Department of English, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Jana C Vamosi
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
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van der Ent A, Parbhakar-Fox A, Erskine PD. Treasure from trash: Mining critical metals from waste and unconventional sources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143673. [PMID: 33261870 DOI: 10.1016/j.scitotenv.2020.143673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/07/2020] [Accepted: 11/08/2020] [Indexed: 06/12/2023]
Abstract
To meet future technological demands of our growing global community new sources of industry critical metals need to be identified. To meet these demands, extracting minerals from larger, lower grade deposits across most commodities is required, which in turn generates ever increasing amounts of mine wastes. We propose that agromining could be used to enables access to unconventional resources not viable using existing minerals processing techniques. This innovative technique relies on so-called hyperaccumulator plants to bio-concentrate high levels of metals into living biomass which can then be extracted from the harvested bio-ore. Producing critical metals, such as nickel, cobalt and thallium, efficiently and sustainably using agromining appears to be well within reach, but this technology needs industrial champions to develop demonstration sites that are scaled appropiately in areas where it is feasible.
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Affiliation(s)
- Antony van der Ent
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Queensland, Australia.
| | - Anita Parbhakar-Fox
- W.H. Bryan Mining & Geology Research Centre, Sustainable Minerals Institute, The University of Queensland, Queensland, Australia
| | - Peter D Erskine
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Queensland, Australia
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9
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Abubakari F, Nkrumah PN, Fernando DR, Brown GK, Erskine PD, Echevarria G, van der Ent A. Incidence of hyperaccumulation and tissue-level distribution of manganese, cobalt, and zinc in the genus Gossia (Myrtaceae). Metallomics 2021; 13:6149465. [PMID: 33629727 DOI: 10.1093/mtomcs/mfab008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022]
Abstract
The rare phenomenon of plant manganese (Mn) hyperaccumulation within the Australian flora has previously been detected in the field, which suggested that the tree genus Gossia (Myrtaceae) might contain new Mn hyperaccumulators. We conducted the first growth experiment on Gossia using a multi-factorial dosing trial to assess Mn, cobalt (Co), and zinc (Zn) (hyper)accumulation patterns in selected Gossia species (G. fragrantissima and G. punctata) after a systematic assessment of elemental profiles on all holdings of the genus Gossia at the Queensland Herbarium using handheld X-ray fluorescence spectroscopy. We then conducted detailed in situ analyses of the elemental distribution of Mn, Co, Zn and other elements at the macro (organ) and micro (cellular) levels with laboratory- and synchrotron-based X-ray fluorescence microscopy (XFM). Gossia pubiflora and Gossia hillii were newly discovered to be Mn hyperaccumulator plants. In the dosing trial, G. fragrantissima accumulated 17 400 µg g-1 Mn, 545 µg g-1 Co, and 13 000 µg g-1 Zn, without signs of toxicity. The laboratory-based XFM revealed distinct patterns of accumulation of Co, Mn, and Zn in G. fragrantissima, while the synchrotron XFM showed their localization in foliar epidermal cells, and in the cortex and phloem cells of roots. This study combined novel analytical approaches with controlled experimentation to examine metal hyperaccumulation in slow-growing tropical woody species, thereby enabling insight into the phenomenon not possible through field studies.
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Affiliation(s)
- Farida Abubakari
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Australia
| | - Philip Nti Nkrumah
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Australia
| | - Denise R Fernando
- Department of Ecology, Environment and Evolution, La Trobe University, Australia
| | - Gillian K Brown
- Department of Environment and Science, Queensland Herbarium, Toowong, Australia
| | - Peter D Erskine
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Australia
| | | | - Antony van der Ent
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Australia.,Laboratoire Sols et Environnement, Université de Lorraine-INRAE, France
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11
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Paing HW, Bryant TJ, Quarles CD, Marcus RK. Coupling of Laser Ablation and the Liquid Sampling-Atmospheric Pressure Glow Discharge Plasma for Simultaneous, Comprehensive Mapping: Elemental, Molecular, and Spatial Analysis. Anal Chem 2020; 92:12622-12629. [PMID: 32856899 DOI: 10.1021/acs.analchem.0c02677] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The spatial distributions of elemental and molecular species are vital pieces of information for a broad number of applications such as material development and bio/environmental analysis. There is currently no single analytical method that can simultaneously acquire elemental, molecular, and spatial information from a single sample. This paper presents the coupling of an NWR213 laser ablation (LA) system to the liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma for combined atomic and molecular (CAM) analysis. The work demonstrates a fundamental balance that must be considered between the extent of fragmentation of molecules and ionization of atoms for CAM analysis. Detailed studies showed that the interelectrode gap to be a critical parameter for controlling the ionization efficiency of atomic and molecular species. Utilizing Design-of-Experiment (DoE) procedures, the discharge current was also found to be a significant parameter to control. Elemental lead, caffeine, and simultaneous lead and caffeine analysis via LA-LS-APGD-MS was made possible through improved understanding of the influence of plasma parameters on the product mass spectra of laser-ablated particles. Finally, a chemical map of elemental lead and molecular caffeine, from lead nitrate and caffeine residues, was generated, demonstrating the comprehensive mapping capabilities of LA-LS-APGD-MS. The practical relevance of the capabilities is demonstrated by mapping glutamic acid from a cryosectioned chicken breast with a thallium spike deposited within the tissue. It is believed that the LA-LS-APGD-MS could be a valuable methodology for the simultaneous mapping of elemental and molecular species from a variety of samples.
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Affiliation(s)
- Htoo W Paing
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, South Carolina 29634, United States
| | - Tyler J Bryant
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, South Carolina 29634, United States
| | - C Derrick Quarles
- Elemental Scientific, Inc., 7277 World Communications Dr., Omaha, Nebraska 68122, United States
| | - R Kenneth Marcus
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, South Carolina 29634, United States
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