Research, industry and conservation context for Zinc hyperaccumulation and phytoremediation.
Literature
October 20, 2026 · Morales et al. (2026), International Journal of Molecular Sciences
The Santiago group that showed Ulva compressa locks copper away as CuS nanoparticles now reports that zinc gets the opposite treatment — not stored as ZnS, not buffered by phytochelatins or metallothioneins, but co-extruded to the medium wrapped in glutathione — and the inference rests on chemistry, not on any direct speciation measurement.
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Literature
September 30, 2026 · Wang et al. (2026), Life 16(9):1562
A pot trial on an Inner Mongolian Potentilla chinensis reached 1,354 mg Zn kg⁻¹ in shoots with shoot-to-root ratios above 1 at every dose — but the authors themselves note this sits below even the revised 3,000 mg kg⁻¹ Zn hyperaccumulation threshold, so the real news is the translocation-plus-tolerance physiology and a congener that already is a Zn hyperaccumulator, not a new record.
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Literature
September 9, 2026 · Lv, Li et al. (2026), Scientific Reports
A maize knockout of the grain-cadmium gene ZmHMA3 accumulates more zinc in its shoots yet tolerates high zinc worse — exposing the same transporter-family trade-off that hyperaccumulators solved by rewiring, not deleting.
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Literature
August 25, 2026 · Abbasi et al. (2026), Frontiers in Microbiology 17:1844753
Two bacteria isolated from the Zn/Cd hyperaccumulator Sedum alfredii shift wheat root exudation toward oxalic and citric acids, raising root surface area, Zn concentration, and accumulation in hydroponic culture—but the gains are root-heavy and still untested in soil.
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Literature
August 9, 2026 · Bočaj et al. (2026), Environmental Microbiome
Metagenomics of Noccaea praecox splits its root microbiome in two — contaminated soil enriches exactly the metal-efflux functions that bioaugmentation already screens for, while the transporter functions that might actually help mobilise metal are set by the plant host and the root compartment, an inversion that complicates the case for off-the-shelf inoculants in phytoextraction.
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Literature
July 23, 2026 · Yamjabok et al. (2026), Transgenic Research
The real gain is calendar time, not hit rate, and the method lands on the zinc/cadmium side of the model hyperaccumulator while the one nickel race it was tested on failed.
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