NiO(s) (bunsenite) is not available to Alyssum species

Guido Fellet, Tiziana Centofanti, Rufus L. Chaney, Carrie E. Green

Research output: Contribution to journalArticlepeer-review

Abstract (may include machine translation)

To determine if the Ni-hyperaccumulator Alyssum corsicum can absorb Ni from the kinetically inert crystalline mineral NiO(s) (bunsenite). A. corsicum and A. montanum plants were grown for 30 days in a serpentine Hoagland solution. NiO was provided at 0 or 0.1 g L-1 (1.34 mmol L-1) as reagent grade NiO particles <1 μm diameter, continuously mixed by aeration. A. corsicum and A. montanum shoots contained 19.4 and 5.2 mg Ni kg-1 DW with NiO, and 3.0 and 1.1 mg Ni kg-1 DW shoots, respectively in the control treatment. A. corsicum normally absorbs over 12,000 mg Ni kg -1 shoots when supplied 300 μM soluble Ni. Roots were coated with the NiO particles and contained 3-5% Ni at harvest. Despite the small Ni accumulation in the NiO treatment above control, A. corsicum is not capable of dissolving and hyperaccumulating Ni from NiO.

Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalPlant and Soil
Volume319
Issue number1-2
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Hyperaccumulator
  • Kinetic
  • Nickel
  • Phytoextraction
  • Serpentine

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