Abstract
The accumulation and elimination kinetics for Cd described by one-compartment model were determined in five subcellular fractions of wheat after exposure to 5.0μM Cd with or without pre-exposure to 0.1μM Cd or 5.0μM Zn. The results show that the acclimation of wheat to Cd or Zn generates its resistance to Cd and decreased Cd accumulation in wheat. The acclimation of wheat to Cd or Zn enhanced the accumulation of Cd in the biological detoxified fractions especially the heat-stable fraction and decreased the accumulation of Cd in the metal sensitive fractions especially the heat-denatured proteins over time. Subsequently, the acclimation to Cd or Zn increased the activities of CAT and SOD in root and shoot to different extents compared to the unacclimated wheat. This study for the first time suggests that the acclimation of plant to low-level metal affects the accumulation and the toxicity of metal in plant.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call