3 species recorded in this database; highest cited value 22,630 µg g⁻¹.
| Metal | Region | Uptake | Verify | ||||
|---|---|---|---|---|---|---|---|
| Pityrogramma calomelanossilverback fern | Pteridaceae | 8,350 | 8.3× | Tropical America, pantropical (naturalised) | Obligate | primary | |
| Pteris multifidaSpider brake | Pteridaceae | 4,056 | 4.1× | China (Guangxi, Guangdong; As-mining areas) | Facultative | primary | |
| Pteris vittataChinese brake fern | Pteridaceae | 22,630 | 22.6× | Pantropical and subtropical | Obligate | primary |
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Research, industry and conservation context for Arsenic hyperaccumulation and phytoremediation.
Hydrothermal liquefaction of Chinese brake fern biomass with sulfuric acid plus waste steel slag delivers a 29.85% phenol-rich bio-oil and locks most of the crop's arsenic into crystalline arsenate phases — but the residual 5.6% and the unreported char loading are where the economics actually get decided.
Read the analysis →Adding calcium carbonate — the standard immobilisation amendment — raised arsenic accumulation in the brake fern Pteris vittata by ~100% through P-transporter upregulation, flipping remediation chemistry on its head for an anionic metalloid.
Read the analysis →In abandoned mercury mines, the famous arsenic fern Pteris vittata concentrates Hg to 83 mg/kg in shoots — but XANES shows the metal is locked away as solid β-HgS and glutathione complexes, a detox chemistry that stabilizes mercury in roots rather than moving it into harvestable fronds.
Read the analysis →PvPht1;6 provides the first in planta evidence that an arbuscular-mycorrhiza-inducible phosphate transporter takes up arsenate at the Pteris vittata root–AMF interface — but whether that arsenic reaches the shoot depends on the host’s own translocation machinery.
Read the analysis →Bryophytes on the world's richest arsenic–thallium soils assay up to ~2.5% arsenic in their tissue, but crustal-element tracers, electron microscopy and an apolar-solvent wash show most of it is mineral dust stuck to the surface — a warning that hyperaccumulation screened on unwashed near-source tissue is inflated, with genuine uptake modest and strongest for thallium in a single moss.
Read the analysis →