Paddy rice (Oryza sativa) is able to accumulate high concentrations of Mn without showing
toxicity; however, the molecular mechanisms underlying Mn uptake are unknown. Here, we …

Background and aims Cereals are the main dietary source of cadmium (Cd). Rice grains
often contain higher levels of Cd than other cereals, but the reasons are unknown. The aims …

Compared to other organisms, plants have expanded families of transporters that are
involved in the uptake and efflux of metals. Fortunately, in many cases, the examination of …

Abstract Iron (Fe) and manganese (Mn) are essential metals which, when scarce in the
growth medium, are respectively taken up by the root high affinity transporters IRT1 and …

The molecular basis for the transport of manganese across membranes in plant cells is
poorly understood. We have found that IRT1, an Arabidopsis thaliana metal ion transporter …

Cadmium (Cd) is a toxic nonessential metal that poses a health risk for humans. Cd is easily
accumulated in leaf vegetables than in other vegetables. Leafy vegetables are one of the …

Heavy metal ions such as Cu2+, Zn2+, Mn2+, Fe2+, Ni2+ and Co2+ are essential
micronutrients for plant metabolism but when present in excess, these, and non-essential …

Cation diffusion facilitator (CDF) proteins belong to a family of heavy metal efflux
transporters that might play an essential role in homeostasis and tolerance to metal ions. We …

Metal-tolerance proteins (MTPs) are divalent cation transporters that have been shown to be
essential for metal homeostasis and tolerance in model plants and hyperaccumulators. Due …

The heavy metal cadmium (Cd) is toxic to humans, and its accumulation in rice grains is a
major agricultural problem. Rice has seven putative metal transporter NRAMP genes, but …