Leaf applied sodium chloride promotes cadmium accumulation in durum wheat grain      
Yazarlar (5)
Faruk Ozkutlu
Ordu Üniversitesi, Türkiye
Levent Ozturk
Sabancı Üniversitesi, Türkiye
Doç. Dr. Halil ERDEM Çukurova Üniversitesi, Türkiye
Mike Mclaughlin
Commonwealth Scientific And Industrial Research Organisation, Avustralya
Ismail Cakmak
Sabancı Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Plant and Soil
Dergi ISSN 0032-079X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SSCI
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2007
Cilt No 290
Sayı 1
Sayfalar 323 / 331
DOI Numarası 10.1007/s11104-006-9164-6
Makale Linki http://link.springer.com/10.1007/s11104-006-9164-6
Özet
Cadmium (Cd) accumulation in durum wheat grain is a growing concern. Among the factors affecting Cd accumulation in plants, soil chloride (Cl) concentration plays a critical role. The effect of leaf NaCl application on grain Cd was studied in greenhouse-grown durum wheat (Triticum turgidum L. durum, cv. Balcali-2000) by immersing (10 s) intact flag leaves into Cd and/or NaCl-containing solutions for 14 times during heading and dough stages. Immersing flag leaves in solutions containing increasing amount of Cd resulted in substantial increases in grain Cd concentration. Adding NaCl alone or in combination with the Cd-containing immersion solution promoted accumulation of Cd in the grains, by up to 41%. In contrast, Zn concentrations of grains were not affected or even decreased by the NaCl treatments. This is likely due to the effect of Cl complexing Cd and reducing positive charge on the metal ion, an effect that is much smaller for Zn. Charge reduction or removal (CdCl 20 species) would increase the diffusivity/lipophilicity of Cd and enhance its capability to penetrate the leaf epidermis and across membranes. Of even more significance to human health was the ability of Cl alone to penetrate leaf tissue and mobilize and enhance shoot Cd transfer to grains, yet reducing or not affecting Zn transfer. © 2006 Springer Science+Business Media B.V.
Anahtar Kelimeler
cadmium | chloride | durum wheat | grain cadmium | salt