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Type: Journal article
Title: Micro-analytical and molecular approaches for understanding the distribution, biochemistry, and molecular biology of selenium in (hyperaccumulator) plants
Author: Pinto Irish, K.
Harvey, M.A.
Harris, H.H.
Aarts, M.G.M.
Chan, C.X.
Erskine, P.D.
van der Ent, A.
Citation: Planta: an international journal of plant biology, 2023; 257(1):2-17
Publisher: Springer Science and Business Media LLC
Issue Date: 2023
ISSN: 0032-0935
Statement of
Katherine Pinto Irish, Maggie, Anne Harvey, Hugh H. Harris, Mark G. M. Aarts, Cheong Xin Chan, Peter D. Erskine, Antony van der Ent
Abstract: 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.
Keywords: Genome-scale studies; Selenium metabolism; SMT; Spectroscopy; SULTR; Transcriptomics; X-ray fluorescence elemental mapping
Rights: © 2022, The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
DOI: 10.1007/s00425-022-04017-8
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Appears in Collections:Chemistry publications

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