Nickel Hyperaccumulation in Bornmuellera kiyakii Aytaç & Aksoy and Associated Plants of the Brassicaceae from Kızıldağ (Derebucak, Konya-Turkey)

Authors : Roger D. Reeves, Nezaket Adigüzel, Alan J. M. Baker

Pages : 33-40

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Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :Recent exploration of an area of ultramafic geology in south-western Turkey led to the discovery and description of a new species, Bornmuellera kiyakii Aytaç & Aksoy (Brassicaceae). This was of particular interest to us because of the earlier discovery of nickel hyperaccumulation (Ni concentrations exceeding 0.1% of plant dry weight) in 6 other taxa in this small genus from Albania, Greece, and Turkey. We report herein that B. kiyakii is also a Ni hyperaccumulator, based on a population near Çamlık that showed a mean Ni concentration exceeding 8000 mg kg-1 of dried leaf material. Several other members of the Brassicaceae at the same site-species of Alyssum L., Pseudosempervivum (Boiss.) Grossh. (formerly in Cochlearia L.) and Thlaspi L.-also act as Ni hyperaccumulators.
Keywords : Bornmuellera, nickel, hyperaccumulation