Characteristics of cadmium uptake and membrane transport in roots of intact wheat (Triticum aestivum L.) seedlings

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

“…An evaluation of the morpho-physiological growth parameters of tomatoes showed that at high Cd concentrations, the root-shoot growth decreased at a relative rate, which could be attributed to the lesser water content in the seedlings due to reduced imbibition. The literature suggests that Cd stress decreased the root-shoot length in wheat [45], peas [46], Corchorus capsularis [47], and Suaeda glauca [48]. Further, it has been documented to reduce the dry weight in wheat [49], maize [50], and tomatoes [51].…”

Cadmium isotope fractionation in the soil – cacao systems of Ecuador: a pilot field study

“…In particular, processes such as uptake into and retention in root cells, loading into the xylem, transfer from the xylem to the phloem and transport through phloem appear to play a key role in the Cd accumulation and distribution within cacao. 16,[19][20][21][22][23][24] It has also been proposed that Cd can be directly loaded from stems and branches into cacao beans without passing through leaves and that Cd is relocated into developing beans from pod husks. 25 Previous studies on annual crops such as barley, potatoes and rice revealed clear cultivar-specic differences in Cd uptake and particularly root to shoot translocation, whereby the latter appears to be governed by the ability of plants to sequester Cd in roots with the aid of transporter proteins.…”

Alleviation of cadmium phytotoxicity to wheat is associated with Cd re-distribution in soil aggregates as affected by amendments

“…7,8 Wheat grain products are the primary source of dietary Cd-intake for humans in China. 9 The most efficient route to control the risk of elevated Cd exposure may be the remediation of Cd-polluted agricultural soils. Among the technologies for soil remediation (e.g.…”

“…concentration in bulk soil (4) À0.814 ** À0.737** À0.745** 1.000Cd concentration in grain (5) À0.892** À0.853** À0.817** 0.942** 1.000 BCF (shoot) (6) À0.908** À0.881** À0.788** 0.856** 0.966** 1.000 BCF (root) (7) À0.823** À0.811** À0.729** 0.797*Cd in 0.2-2 mm (8) À0.947** 0.919** 0.798** À0.844** À0.940** À0.962** À0.902** 1.000 Total Cd in 0.02-0.2 mm (9) À0.907** À0.873** À0.783** 0.863** 0.963** 0.969** 0.940** À0.984** 1.000 Total Cd in 0.002-0.02 mm (10) À0.936** À0.905** À0.742** 0.782** 0.886** 0.930** 0.855** À0.986** 0.949** 1.000Total Cd in <0.002 mm (11) À0.964** À0.948** À0.844** 0.852*À0.868** À0.992** À0.909** À0.834** 0.980** À0.963** À0.959** À0.981** 1.000 DTPA-Cd in 0.02-0.2 mm (13) À0.651** 1.000 DTPA-Cd in 0.002-0.02 mm(14) À0.827** À0.772** À0.690** 0.805*À0.918** 0.385 1.000 DTPA-Cd in <0.002 mm (15) À0.940** À0.944** À0.889** 0.820*Correlation is signicant at the 0.05 level; italics and **correlation is signicant at the 0.01 level(8)(9)(10)(11)(12)(13)(14) refer to Cd mass loading in different fractions.…”