Research, industry and conservation context for Selenium hyperaccumulation and phytoremediation.
Literature
October 7, 2026 · Dotson, Kurowski & Grillo (2026), Plant Biology
In a greenhouse 16S study of two Astragalus congeners, selenate dosing left the Se hyperaccumulator's root microbiome essentially unmoved while the non-accumulator's root community was restructured and its dominant rhizobium suppressed — evidence that what protects the microbiome is the chemical form a plant stores its selenium in, not how much it holds.
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Literature
October 3, 2026 · Duan et al. (2026), Food Chemistry: X
The main soluble selenium compound in the Cardamine hupingshanensis shoot — selenolanthionine, ~47% of tissue selenium — was nearly invisible to the standard protease-and-anion-exchange workflow, so a decade of speciation profiles for this commercialized hyperaccumulator may describe the extraction chemistry more than the plant.
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Literature
September 23, 2026 · Duan et al. (2026), Food Chemistry: X 39:104410
In the selenium hyperaccumulator Cardamine hupingshanensis, Se is stored as water-soluble free selenoamino acids that a standard one-step protease digestion largely destroys — recovering only 5.06 µg Se g⁻¹ of selenolanthionine where a water-first two-step protocol finds 143.74 — so published speciation profiles of hyperaccumulators made with the conventional method may be systematically missing the compounds that define these plants.
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Literature
September 15, 2026 · Duan et al. (2026), Food Chemistry: X
An orthogonal LC-AFS study shows the standard one-step enzymatic extraction silently destroys the free selenoamino acids that make Cardamine hupingshanensis a selenium hyperaccumulator — measured SeLan rose 28-fold when water extraction preceded enzymolysis — which means part of the published Se-speciation literature may be describing the extraction bottle, not the plant.
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Literature
September 2, 2026 · Xia et al. (2026), Plants 15(17):2680
Non-destructive leaf electrophysiology can track selenomethionine biofortification of the world's strongest selenium accumulator in real time — and shows why chlorophyll readings alone would push growers into overdosing it.
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New species
August 23, 2026 · Wang et al. (2026), BMC Genomics 27:291
A genome-wide scan of the selenium-tolerant Brassicaceae Cardamine hupingshanensis finds 114 U-box E3 ubiquitin ligases, several strongly induced by selenium and physically linked to ABA receptors and the cold-stress regulator ICE1 — hinting that selenium homeostasis is managed by repurposed stress-signalling hardware.
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Literature
August 15, 2026 · Xie, Chen, Liu, Gao, Liang, Chen, Xiang, Chen, Hou, Lu, Tang & Zhou (2026), Plant Science
A selenium plant's newly catalogued glutathione-S-transferase toolkit — 61 genes and three selenium-responsive Tau enzymes that shield cells from oxidative damage — is a survival system, not an uptake pump, and that distinction decides whether the trait is any use to selenium agromining.
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