X-ray elemental mapping techniques for elucidating the ecophysiology of hyperaccumulator plants.
Identifieur interne : 000033 ( Main/Exploration ); précédent : 000032; suivant : 000034X-ray elemental mapping techniques for elucidating the ecophysiology of hyperaccumulator plants.
Auteurs : Antony Van Der Ent [Australie] ; Wojciech J. Przybyłowicz [Afrique du Sud] ; Martin D. De Jonge [Australie] ; Hugh H. Harris [Australie] ; Chris G. Ryan [Australie] ; Grzegorz Tylko [Pologne] ; David J. Paterson [Australie] ; Alban D. Barnabas [Afrique du Sud] ; Peter M. Kopittke [Australie] ; Jolanta Mesjasz-Przybyłowicz [Afrique du Sud]Source :
- The New phytologist [ 1469-8137 ] ; 2017.
Abstract
Contents I. II. III. IV. V. VI. References SUMMARY: Hyperaccumulators are attractive models for studying metal(loid) homeostasis, and probing the spatial distribution and coordination chemistry of metal(loid)s in their tissues is important for advancing our understanding of their ecophysiology. X-ray elemental mapping techniques are unique in providing in situ information, and with appropriate sample preparation offer results true to biological conditions of the living plant. The common platform of these techniques is a reliance on characteristic X-rays of elements present in a sample, excited either by electrons (scanning/transmission electron microscopy), protons (proton-induced X-ray emission) or X-rays (X-ray fluorescence microscopy). Elucidating the cellular and tissue-level distribution of metal(loid)s is inherently challenging and accurate X-ray analysis places strict demands on sample collection, preparation and analytical conditions, to avoid elemental redistribution, chemical modification or ultrastructural alterations. We compare the merits and limitations of the individual techniques, and focus on the optimal field of applications for inferring ecophysiological processes in hyperaccumulator plants. X-ray elemental mapping techniques can play a key role in answering questions at every level of metal(loid) homeostasis in plants, from the rhizosphere interface, to uptake pathways in the roots and shoots. Further improvements in technological capabilities offer exciting perspectives for the study of hyperaccumulator plants into the future.
DOI: 10.1111/nph.14810
PubMed: 28994153
Affiliations:
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De Jonge</name><affiliation wicri:level="1"><nlm:affiliation>X-ray Fluorescence Microscopy, Australian Synchrotron, Melbourne, Vic, 3168, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>X-ray Fluorescence Microscopy, Australian Synchrotron, Melbourne, Vic, 3168</wicri:regionArea><wicri:noRegion>3168</wicri:noRegion></affiliation></author><author><name sortKey="Harris, Hugh H" sort="Harris, Hugh H" uniqKey="Harris H" first="Hugh H" last="Harris">Hugh H. Harris</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry, The University of Adelaide, Adelaide, SA, 5005, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Chemistry, The University of Adelaide, Adelaide, SA, 5005</wicri:regionArea><wicri:noRegion>5005</wicri:noRegion></affiliation></author><author><name sortKey="Ryan, Chris G" sort="Ryan, Chris G" uniqKey="Ryan C" first="Chris G" last="Ryan">Chris G. Ryan</name><affiliation wicri:level="1"><nlm:affiliation>Commonwealth Scientific and Industrial Research Organization, Mineral Resources, Clayton, Vic, 3168, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Commonwealth Scientific and Industrial Research Organization, Mineral Resources, Clayton, Vic, 3168</wicri:regionArea><wicri:noRegion>3168</wicri:noRegion></affiliation></author><author><name sortKey="Tylko, Grzegorz" sort="Tylko, Grzegorz" uniqKey="Tylko G" first="Grzegorz" last="Tylko">Grzegorz Tylko</name><affiliation wicri:level="1"><nlm:affiliation>Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, PL30-387, Poland.</nlm:affiliation><country xml:lang="fr">Pologne</country><wicri:regionArea>Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, PL30-387</wicri:regionArea><wicri:noRegion>PL30-387</wicri:noRegion></affiliation></author><author><name sortKey="Paterson, David J" sort="Paterson, David J" uniqKey="Paterson D" first="David J" last="Paterson">David J. Paterson</name><affiliation wicri:level="1"><nlm:affiliation>X-ray Fluorescence Microscopy, Australian Synchrotron, Melbourne, Vic, 3168, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>X-ray Fluorescence Microscopy, Australian Synchrotron, Melbourne, Vic, 3168</wicri:regionArea><wicri:noRegion>3168</wicri:noRegion></affiliation></author><author><name sortKey="Barnabas, Alban D" sort="Barnabas, Alban D" uniqKey="Barnabas A" first="Alban D" last="Barnabas">Alban D. Barnabas</name><affiliation wicri:level="1"><nlm:affiliation>iThemba LABS, National Research Foundation, PO Box 722, Somerset West, 7129, South Africa.</nlm:affiliation><country xml:lang="fr">Afrique du Sud</country><wicri:regionArea>iThemba LABS, National Research Foundation, PO Box 722, Somerset West, 7129</wicri:regionArea><wicri:noRegion>7129</wicri:noRegion></affiliation></author><author><name sortKey="Kopittke, Peter M" sort="Kopittke, Peter M" uniqKey="Kopittke P" first="Peter M" last="Kopittke">Peter M. Kopittke</name><affiliation wicri:level="1"><nlm:affiliation>School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Qld, 4072, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Qld, 4072</wicri:regionArea><wicri:noRegion>4072</wicri:noRegion></affiliation></author><author><name sortKey="Mesjasz Przybylowicz, Jolanta" sort="Mesjasz Przybylowicz, Jolanta" uniqKey="Mesjasz Przybylowicz J" first="Jolanta" last="Mesjasz-Przybyłowicz">Jolanta Mesjasz-Przybyłowicz</name><affiliation wicri:level="1"><nlm:affiliation>iThemba LABS, National Research Foundation, PO Box 722, Somerset West, 7129, South Africa.</nlm:affiliation><country xml:lang="fr">Afrique du Sud</country><wicri:regionArea>iThemba LABS, National Research Foundation, PO Box 722, Somerset West, 7129</wicri:regionArea><wicri:noRegion>7129</wicri:noRegion></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Contents I. II. III. IV. V. VI. References SUMMARY: Hyperaccumulators are attractive models for studying metal(loid) homeostasis, and probing the spatial distribution and coordination chemistry of metal(loid)s in their tissues is important for advancing our understanding of their ecophysiology. X-ray elemental mapping techniques are unique in providing in situ information, and with appropriate sample preparation offer results true to biological conditions of the living plant. The common platform of these techniques is a reliance on characteristic X-rays of elements present in a sample, excited either by electrons (scanning/transmission electron microscopy), protons (proton-induced X-ray emission) or X-rays (X-ray fluorescence microscopy). Elucidating the cellular and tissue-level distribution of metal(loid)s is inherently challenging and accurate X-ray analysis places strict demands on sample collection, preparation and analytical conditions, to avoid elemental redistribution, chemical modification or ultrastructural alterations. We compare the merits and limitations of the individual techniques, and focus on the optimal field of applications for inferring ecophysiological processes in hyperaccumulator plants. X-ray elemental mapping techniques can play a key role in answering questions at every level of metal(loid) homeostasis in plants, from the rhizosphere interface, to uptake pathways in the roots and shoots. Further improvements in technological capabilities offer exciting perspectives for the study of hyperaccumulator plants into the future.</div></front></TEI><affiliations><list><country><li>Afrique du Sud</li><li>Australie</li><li>Pologne</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Van Der Ent, Antony" sort="Van Der Ent, Antony" uniqKey="Van Der Ent A" first="Antony" last="Van Der Ent">Antony Van Der Ent</name></noRegion><name sortKey="De Jonge, Martin D" sort="De Jonge, Martin D" uniqKey="De Jonge M" first="Martin D" last="De Jonge">Martin D. De Jonge</name><name sortKey="Harris, Hugh H" sort="Harris, Hugh H" uniqKey="Harris H" first="Hugh H" last="Harris">Hugh H. Harris</name><name sortKey="Kopittke, Peter M" sort="Kopittke, Peter M" uniqKey="Kopittke P" first="Peter M" last="Kopittke">Peter M. Kopittke</name><name sortKey="Paterson, David J" sort="Paterson, David J" uniqKey="Paterson D" first="David J" last="Paterson">David J. Paterson</name><name sortKey="Ryan, Chris G" sort="Ryan, Chris G" uniqKey="Ryan C" first="Chris G" last="Ryan">Chris G. Ryan</name></country><country name="Afrique du Sud"><noRegion><name sortKey="Przybylowicz, Wojciech J" sort="Przybylowicz, Wojciech J" uniqKey="Przybylowicz W" first="Wojciech J" last="Przybyłowicz">Wojciech J. Przybyłowicz</name></noRegion><name sortKey="Barnabas, Alban D" sort="Barnabas, Alban D" uniqKey="Barnabas A" first="Alban D" last="Barnabas">Alban D. Barnabas</name><name sortKey="Mesjasz Przybylowicz, Jolanta" sort="Mesjasz Przybylowicz, Jolanta" uniqKey="Mesjasz Przybylowicz J" first="Jolanta" last="Mesjasz-Przybyłowicz">Jolanta Mesjasz-Przybyłowicz</name></country><country name="Pologne"><noRegion><name sortKey="Tylko, Grzegorz" sort="Tylko, Grzegorz" uniqKey="Tylko G" first="Grzegorz" last="Tylko">Grzegorz Tylko</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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