Zinc

Hyperaccumulation threshold: 3,000 µg g⁻¹ [ref] Primary

Zinc hyperaccumulators grow on calamine soils and mining spoils and can accumulate zinc to concentrations toxic to most plants. Noccaea caerulescens and Arabidopsis halleri are the principal molecular model species for metal homeostasis, chelation and root-to-shoot translocation.

8 species recorded in this database; highest cited value 40,000 µg g⁻¹.

		Metal			Region	Uptake	Verify
Arabidopsis halleri	Brassicaceae	Zn Zinc	22,000	7.3×	Central Europe, East Asia	Obligate	review
Dichapetalum gelonioides	Dichapetalaceae	Zn Zinc	30,000	10×	Southeast Asia	Obligate	review
Gossia fragrantissima	Myrtaceae	Zn Zinc	13,000	4.3×	Australia (Queensland, New South Wales)	Facultative	primary
Noccaea caerulescens	Brassicaceae	Zn Zinc	40,000	13.3×	Western & Central Europe	Obligate	review
Noccaea praecox	Brassicaceae	Zn Zinc	20,000	6.7×	Southeastern Europe	Obligate	review
Noccaea rotundifolia	Brassicaceae	Zn Zinc	8,000	2.7×	European Alps	Facultative	hypothesized
Sedum alfredii	Crassulaceae	Zn Zinc	19,600	6.5×	China (southeastern)	Facultative	review
Sedum plumbizincicola	Crassulaceae	Zn Zinc	19,000	6.3×	China (eastern)	Obligate	review