Effects of Artemisia ordosica roots on the cadmium adsorption characterization on particulate organic matter and soils.

Particulate organic matter (POM) is an effective adsorbent for decreasing the contaminant of cadmium, but little is known about the relevant mechanisms under the effect of plant. In this work, POM were used to study the removal of Cd in the initial concentration range of 0-4.46 mmol L at pH 5.

Cultivar replacement increases water use efficiency in foxtail millet in Shaanxi Province, China.

Cultivar replacement-induced genetic improvement is considered an important factor in enhancing crop grain yield. However, the effect of cultivar replacement of foxtail millet, an important crop in arid and semi-arid regions, on grain yield and drought resistance has rarely been considered. In the present study, we grew five millet cultivars, representative of widely cultivated varieties released from the 1950s to the 2010s in Shaanxi Province, China, in an open rainout shelter (closed during rain events) under two contrasting water treatments (35 ± 5% field water capacity (FWC), and 75 ± 5% FWC) with an aim to detect yield-related parameters, biomass accumulation, water use efficiency (WUE), and plant water-related indices.

Effects of humic acid-modified magnetic FeO/MgAl-layered double hydroxide on the plant growth, soil enzyme activity, and metal availability.

The synthesis of a humic acid-layered double hydroxide (HA-LDH) hybrid was purposed for the remediation of contaminated soils in mining area. The hybrid was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscope and energy dispersive spectrometer. In order to investigate the effect of HA-LDH on the mine soil, greenhouse experiments of Artemisia ordosica were carried out under different concentrations of amendments (0, 1%, 3%, 5%, 7%).

A repeat region from the Brassica juncea HMA4 gene BjHMA4R is specifically involved in Cd binding in the cytosol under low heavy metal concentrations.

Background: HMA4 transporters are involved in the transport and binding of divalent heavy metals (Cd, Zn, Pb [lead] and Co [cobalt]). In general, as efflux pumps, HMA4 transporters can increase the heavy metal tolerance of yeast and Escherichia coli. Additional research has shown that the C-terminus of HMA4 contains a heavy metal-binding domain and that heterologous expression of a portion of peptides from this C-terminal domain in yeast provides a high level of Cd tolerance and Cd hyperaccumulation.