Natural variation of nickel, zinc and cadmium (hyper)accumulation in facultative serpentinophytes Noccaea kovatsii and N. praecox

Data on the variability of hyperaccumulation potential of the facultative serpentinophytes Noccaea kovatsii and N. praecox on different geological substrates are scarce. The aim of this study was to assess the accumulation potential of these two species from ultramafic and non-ultramafic substrates, with special emphasis on the hyperaccumulation of Ni, Zn and Cd. Samples of plants and corresponding soils were collected from 16 sites covering a...