Cadmium uptake by plants.

Inhibition of nitrate transporter 1.1-controlled nitrate uptake reduces cadmium uptake in Arabidopsis.

Identification of mechanisms that decrease cadmium accumulation in plants is a prerequisite for minimizing dietary uptake of cadmium from contaminated crops. Here, we show that cadmium inhibits nitrate transporter 1.1 (NRT1.1)-mediated nitrate (NO3 (-)) uptake in Arabidopsis (Arabidopsis thaliana) and impairs NO3 (-) homeostasis in roots. In NO3 (-)-containing medium, loss of NRT1.1 function in...

Effects of full and limited irrigation and contaminated soil on cadmium uptake by corn

Using plants for the remediation of soils contaminated with heavy metals is an economical, cheap, and effective strategy. The goal of this research was to study the effect of sewage sludge and drought stress on the remediation of cadmium in soil, root uptake by corn plant. This study was carried out on corn in factorial design experiment based on completely randomized design with three replicat...

Plant screening of halophyte species for cadmium phytoremediation.

Chloride (Cl-) has been related to increased phytoavailability of cadmium (Cd) in soil. A glasshouse experiment using a historically contaminated soil was undertaken to evaluate the effect of chloride on Cd uptake by salt-tolerant plants and possibly quantify the uptake of discrete Cd species (e.g. Cd2+, CdCl+, CdCl(0)2). Chloride treatments were applied as 100 mM NaCl and compared with equival...

Cadmium uptake and xylem loading are active processes in the hyperaccumulator Sedum alfredii.

Sedum alfredii is a well known cadmium (Cd) hyperaccumulator native to China; however, the mechanism behind its hyperaccumulation of Cd is not fully understood. Through several hydroponic experiments, characteristics of Cd uptake and translocation were investigated in the hyperaccumulating ecotype (HE) of S. alfredii in comparison with its non-hyperaccumulating ecotype (NHE). The results showed...

Phytoextraction of Heavy Metal by Hyperaccumulating and Non Hyperaccumulating Plants: Comparison of Cadmium Uptake and Storage Mechanisms in the Plants

Potential of Medicago sativa for uptake of cadmium from contaminated environment

Cadmium is associated with industrial processes such as metal plating and the production of nickel-cadmium batteries, pigments, plastics and other synthetics. Cadmium is a potential environmental hazard. A cost effective technologies are needed to remove cadmium from the contaminated soil-water environment. Phytoremediation is a novel, cost effective and eco-friendly ‘green’ remediation technol...