Metal hyperaccumulating Brassicaceae from the ultramafic area of YahyalA +/- in Kayseri province, Turkey


Çelik J., AKSOY A., Leblebici Z.

ECOLOGICAL RESEARCH, vol.33, no.4, pp.705-713, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 4
  • Publication Date: 2018
  • Doi Number: 10.1007/s11284-018-1606-0
  • Journal Name: ECOLOGICAL RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.705-713
  • Keywords: Serpentine, Ni-hyperaccumulator, Isatis cappadoccica, Kayseri, RESTRICTION SITE VARIATION, HEAVY-METALS, THLASPI L, NICKEL, SERPENTINE, PLANTS, ACCUMULATION, ALYSSUM, VEGETATION, CRUCIFERAE
  • Akdeniz University Affiliated: Yes

Abstract

Many of the plants found in serpentine areas are endemics and they may accumulate Ni at high concentration. High accumulation of Cr is rare, or in some views, never properly demonstrated. Generally, a very small proportion of any serpentine flora shows high accumulation of Ni, in some serpentine areas Ni accumulators are completely absent. There are approximately 570 hyperaccumulator plant species found on earth, 450 of them are Ni hyperaccumulators. A few of the Ni accumulators have potential for phytoremediation or phytomining. In the present study, 19 different Brassicaceae members growing in serpentine habitats in the district of YahyalA +/-, Kayseri province, Turkey viz., members of genera Aethionema, Alyssum, Arabis, Heldreichia, Hesperis, Iberis, Isatis, Microthlaspi, Odontarrhena, Pseudosempervivum and Thlaspi were investigated. Nickel concentrations in the soil and underground and aboveground parts of plants were determined by using ICP-OES. It was observed that Ni concentrations of seven taxa (Odontarrhena muralis, O. oxycarpa, Isatis cappadocica subsp. cappadocica, Microthlaspi perfoliatum, Pseudosempervivum sempervivum, Thlaspi triangulare, Thlaspi rosulare) reach the threshold criterion of 1,000 mg kg(-1) for Ni hyperaccumulation. In this study Ni concentrations in aboveground tissues of I. cappadocica subsp. cappadocica are determined as 5,587 mg kg(-1) (in dry weight). Accordingly, it is suggested that this taxon be added to the list of Ni hyperaccumulator plants.