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A nickel-accumulating plant from Western Australia
1Department of Chemistry and Biochemistry, Massey University, Palmerston North, New Zealand.
Planta
|February 1, 2014
Summary
Hybanthus floribundus, a Western Australian shrub, demonstrates exceptional nickel and cobalt accumulation, with leaf ash reaching up to 23% nickel. This remarkable hyperaccumulation presents significant questions for plant physiology and biochemistry.
Area of Science:
- Plant Science
- Biochemistry
- Environmental Science
Background:
- Certain plant species exhibit hyperaccumulation of heavy metals.
- Western Australia is known for its unique metallophyte flora.
Purpose of the Study:
- To document the nickel and cobalt accumulation in Hybanthus floribundus.
- To highlight the physiological and biochemical implications of extreme metal accumulation.
Main Methods:
- Field observation and sample collection of Hybanthus floribundus.
- Elemental analysis of plant leaf ash for nickel and cobalt content.
Main Results:
- Hybanthus floribundus accumulates nickel and cobalt to exceptionally high levels.
- Leaf ash analysis revealed nickel concentrations up to 23%.
Conclusions:
- Hybanthus floribundus is a significant nickel and cobalt hyperaccumulator.
- The extreme metal accumulation warrants further investigation into plant physiology and biochemistry.
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