Zinc effects on cadmium accumulation and partitioning in near‐isogenic lines of durum wheat that differ in grain cadmium concentration

• DOI: 10.1111/j.1469-8137.2005.01416.x
• Publication Date: 2005-07-05T19:17:43Z
• Authors: Jonathan J. Hart; Ross M. Welch; Wendell A. Norvell; John M. Clarke; Leon V. Kochian
• Keywords: Triticum turgidum

• Here, we examined the effectiveness of two approaches for reducing cadmium (Cd) accumulation in durum wheat (Triticum turgidum L. var durum) grain: application supplemental zinc (Zn), and use cultivars exhibiting reduced grain Cd concentrations. Two near-isogenic lines (NIL) that differ were grown to maturity solution culture containing a chelating agent buffer free activities Zn at levels approximating those field conditions. The low accumulating (L-Cd) isoline had concentrations, grains shoot parts, which 60–70% lower than high (H-Cd) isoline. Increasing nutrient from deficient sufficient concentration vegetative parts both isolines. results suggest reduces tissue concentrations by inhibiting uptake into roots. partitioning patterns between roots shoots spike components physiological basis trait is related compartmentation or symplasmic translocation Cd.