Soil chemistry, elemental profiles and elemental distribution in nickel hyperaccumulator species from New Caledonia
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Soil chemistry, elemental profiles and elemental distribution in nickel hyperaccumulator species from New Caledonia Vidiro Gei & Guillaume Echevarria & Peter D. Erskine & Sandrine Isnard & Bruno Fogliani & Emmanuelle Montargès-Pelletier & Tanguy Jaffré & Kathryn M. Spiers & Jan Garrevoet & Antony van der Ent
Received: 6 May 2020 / Accepted: 8 September 2020 # Springer Nature Switzerland AG 2020
Abstract Aims This study aimed to establish elemental profiles and to spatially resolve the elemental distribution in five New Caledonian woody Ni hyperaccumulator plant species (Geissois pruinosa var. pruinosa, Homalium francii, Hybanthus austrocaledonicus, Psychotria gabriellae, and Pycnandra acuminata) originating from the Cunoniaceae, Salicaceae, Violaceae, Rubiaceae, and Sapotaceae families respectively. Methods Using synchrotron-based micro-X-ray Fluorescence (μXRF) imaging of different plant tissues,
from the roots to the shoots and reproductive organs, this study aimed to clarify how distribution patterns of nickel, and other physiologically relevant elements, differ between these species. Results The results show that the tissue-level and cellular-level distribution of nickel in P. gabriellae, H. austrocaledonicus, G. pruinosa var. pruinosa, and H. francii conform with the majority of studied Ni hyperaccumulator plant species globally, including (temperate) herbaceous species, with localization mainly in epidermal cells and phloem bundles. However,
Responsible Editor: Juan Barcelo. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11104-020-04714-x) contains supplementary material, which is available to authorized users. V. Gei : G. Echevarria : P. D. Erskine : A. van der Ent Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Australia G. Echevarria : A. van der Ent (*) Université de Lorraine – INRAE, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, France e-mail: [email protected] S. Isnard : T. Jaffré AMAP, Université de Montpellier, IRD, CIRAD, CNRS, INRAE, Montpellier, France S. Isnard : T. Jaffré AMAP, IRD, Herbier de Nouméa, Nouméa, New Caledonia
B. Fogliani Institut Agronomique néo-Calédonien (IAC), Equipe ARBOREAL (AgricultuRe BiOdiveRsité Et vAlorisation), Noumea, New Caledonia E. Montargès-Pelletier Laboratoire Interdisciplinaire des Environnements Continentaux, CNRS, Université de Lorraine, Vandœuvre-lès-Nancy, France K. M. Spiers : J. Garrevoet Photon Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
Plant Soil
P. acuminata has nickel-rich laticifers, which constitute an independent network of cells that is parallel to the vascular bundles and are the main sink for nickel. Conclusions Synchrotron-based micro-X-ray Fluorescence (μXRF) is a powerful method for investigating how metal hyperaccumulation influences acquisition and spatial distribution of a wide range of elements. This non-invasive method enables investigation into the in vivo dist
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