Arsenic hyperaccumulation by different fern species

A - Papers appearing in refereed journals

Zhao, F-J., Dunham, S. J. and McGrath, S. P. 2002. Arsenic hyperaccumulation by different fern species. New Phytologist. 156 (1), pp. 27-31.

AuthorsZhao, F-J., Dunham, S. J. and McGrath, S. P.

Pteris vittata was the first identified arsenic (As) hyperaccumulator. Our aim was to test whether As hyperaccumulation occurs in other fern species, and whether P. vittata collected from both contaminated and uncontaminated environments accumulates As similarly. Three accessions of P. vittata, two cultivars of Pteris cretica, Pteris longifoliaandPteris umbrosa were grown with 0-500 mg As kg(-1) added to the substrate. A second experiment compared As uptake by five common ferns obtained from commercial suppliers. The results show that, in addition to P. vittata, P. cretica, P. longifolia and P. umbrosa also hyperaccumulate As to a similar extent. There was little difference between different Pteris species, or between different accessions of P. vittata. By contrast, Asplenium nidus , Davallia canarensis, Polypodium aureum, Polystichum tsus-simense do not hyperaccumulate As. This study identified three new species of As hyperaccumulators in the Pteris genus and suggests that As hyperaccumulation is a constitutive property in P. vittata.

KeywordsPlant Sciences
Year of Publication2002
JournalNew Phytologist
Journal citation156 (1), pp. 27-31
Digital Object Identifier (DOI)
Open accessPublished as non-open access
Funder project or code443
Heavy metal uptake by plants
Soil protection and remediation by chemical and biological approaches
Publisher's version

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