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dc.contributor.author
Wiggenhauser, Matthias
dc.contributor.author
Moore, Rebekah E.T.
dc.contributor.author
Wang, Peng
dc.contributor.author
Bienert, Gerd Patrick
dc.contributor.author
Holst Laursen, Kristian
dc.contributor.author
Blotevogel, Simon
dc.date.accessioned
2022-05-25T08:38:45Z
dc.date.available
2022-05-14T03:54:11Z
dc.date.available
2022-05-25T08:38:45Z
dc.date.issued
2022-04-19
dc.identifier.issn
1664-462X
dc.identifier.other
10.3389/fpls.2022.840941
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/547182
dc.identifier.doi
10.3929/ethz-b-000547182
dc.description.abstract
This work critically reviews stable isotope fractionation of essential (B, Mg, K, Ca, Fe, Ni, Cu, Zn, Mo), beneficial (Si), and non-essential (Cd, Tl) metals and metalloids in plants. The review (i) provides basic principles and methodologies for non-traditional isotope analyses, (ii) compiles isotope fractionation for uptake and translocation for each element and connects them to physiological processes, and (iii) interlinks knowledge from different elements to identify common and contrasting drivers of isotope fractionation. Different biological and physico-chemical processes drive isotope fractionation in plants. During uptake, Ca and Mg fractionate through root apoplast adsorption, Si through diffusion during membrane passage, Fe and Cu through reduction prior to membrane transport in strategy I plants, and Zn, Cu, and Cd through membrane transport. During translocation and utilization, isotopes fractionate through precipitation into insoluble forms, such as phytoliths (Si) or oxalate (Ca), structural binding to cell walls (Ca), and membrane transport and binding to soluble organic ligands (Zn, Cd). These processes can lead to similar (Cu, Fe) and opposing (Ca vs. Mg, Zn vs. Cd) isotope fractionation patterns of chemically similar elements in plants. Isotope fractionation in plants is influenced by biotic factors, such as phenological stages and plant genetics, as well as abiotic factors. Different nutrient supply induced shifts in isotope fractionation patterns for Mg, Cu, and Zn, suggesting that isotope process tracing can be used as a tool to detect and quantify different uptake pathways in response to abiotic stresses. However, the interpretation of isotope fractionation in plants is challenging because many isotope fractionation factors associated with specific processes are unknown and experiments are often exploratory. To overcome these limitations, fundamental geochemical research should expand the database of isotope fractionation factors and disentangle kinetic and equilibrium fractionation. In addition, plant growth studies should further shift toward hypothesis-driven experiments, for example, by integrating contrasting nutrient supplies, using established model plants, genetic approaches, and by combining isotope analyses with complementary speciation techniques. To fully exploit the potential of isotope process tracing in plants, the interdisciplinary expertise of plant and isotope geochemical scientists is required.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Frontiers Media
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
stable isotopes
en_US
dc.subject
fractionation
en_US
dc.subject
plant uptake
en_US
dc.subject
translocation
en_US
dc.subject
process tracing
en_US
dc.subject
multiple-collector-ICP-MS
en_US
dc.subject
metals
en_US
dc.subject
metalloids
en_US
dc.title
Stable Isotope Fractionation of Metals and Metalloids in Plants: A Review
en_US
dc.type
Review Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Frontiers in Plant Science
ethz.journal.volume
13
en_US
ethz.journal.abbreviated
Front. Plant Sci.
ethz.pages.start
840941
en_US
ethz.size
26 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.scopus
ethz.publication.place
Lausanne
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2022-05-14T03:54:17Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-05-25T08:38:53Z
ethz.rosetta.lastUpdated
2022-05-25T08:38:53Z
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true
ethz.rosetta.versionExported
true
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