title: The effect of mycorrhiza on the growth and elemental composition of Ni-hyperaccumulating plant Berkheya coddii Roessler.
abstract: The effect of arbuscular mycorrhizal fungi (AMF) on growth and element uptake by Ni-hyperaccumulating plant, Berkheya coddii, was studied. Plants were grown under laboratory conditions on ultramafic soil without or with the AM fungi of different origin. The AM colonization, especially with the indigenous strain, significantly enhanced plants growth and their survival. AMF affected also the elemental concentrations that were studied with Particle-induced X-ray emission (PIXE). AMF (i) increased K and Fe in shoots, Zn and Mn in roots, P and Ca both, in roots and shoots; (ii) decreased Mn in shoots, Co and Ni both, in shoots and roots. Due to higher biomass of mycorrhizal plants, total Ni content was up to 20 times higher in mycorrhizal plants compared to the non-mycorrhizal ones. The AMF enhancement of Ni uptake may therefore provide an improvement of a presently used technique of nickel phytomining.
authors.affiliation: Materials Research Department, iThemba LABS, PO Box 722, Somerset West 7129, South Africa. elo@mb.au.dk
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Orłowska
authors.forename: Wojciech
authors.initials: W
authors.lastname: Przybyłowicz
authors.forename: Dariusz
authors.initials: D
authors.lastname: Orlowski
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Turnau
authors.forename: Jolanta
authors.initials: J
authors.lastname: Mesjasz-Przybyłowicz
mesh_terms: D019659:Asteraceae / Q000254:growth & development* / Q000378:metabolism* / Q000382:microbiology; D005658:Fungi / Q000502:physiology*; D038821:Mycorrhizae / Q000502:physiology*; D009532:Nickel / Q000378:metabolism*; D018517:Plant Roots / Q000254:growth & development / Q000378:metabolism / Q000382:microbiology; D013559:Symbiosis; D014131:Trace Elements / Q000378:metabolism*
chemical_list: D014131:Trace Elements; D009532:Nickel