[Effects of nitrogen-doped carbon nanoparticles on bacterial community in paddy rhizosphere soil].

The nitrogen-doped carbon nanoparticles (N-CNPs) has a high potential of increasing nitrogen efficiency in farmland. However, little has been known about the effects of N-CNPs on soil microbial communities. In this study, paddy rhizosphere samples were collected from soils being treated with different nitrogen-doped amount of carbon nanoparticles (low, 1.

Overexpressing heat-shock protein OsHSP50.2 improves drought tolerance in rice.

OsHSP50.2, an HSP90 family gene up-regulated by heat and osmotic stress treatments, positively regulates drought stress tolerance probably by modulating ROS homeostasis and osmotic adjustment in rice. Heat-shock proteins (HSPs) serve as molecular chaperones for a variety of client proteins in abiotic stress response and play pivotal roles in protecting plants against stress, but the molecular mechanism remains largely unknown.

The Arabidopsis AtUNC-93 Acts as a Positive Regulator of Abiotic Stress Tolerance and Plant Growth via Modulation of ABA Signaling and K Homeostasis.

Potassium (K) is one of the essential macronutrients required for plant growth and development, and the maintenance of cellular K homeostasis is important for plants to adapt to abiotic stresses and growth. However, the mechanism involved has not been understood clearly. In this study, we demonstrated that AtUNC-93 plays a crucial role in this process under the control of abscisic acid (ABA).

Influence of Sulfur on the Arsenic Phytoremediation Using Vallisneria natans (Lour.) Hara.

Influences of sulfur (S) on the accumulation and detoxification of arsenic (As) in Vallisneria natans (Lour.) Hara, an arsenic hyperaccumulating submerged aquatic plant, were investigated. At low sulfur levels (<20 mg/L), the thiols and As concentrations in the plant increased significantly with increasing sulfate nutrient supply.

The effect of Eulaliopsis binata on the physi-chemical properties, microbial biomass, and enzymatic activities in Cd-Pb polluted soil.

Pot culture experiment using mining wasteland soil was carried out to study the effect of Eulaliopsis binata on the heavy-metal polluted soil with the growth of 90, 180, 270, and 360 days. Soil nutritional components, heavy metal, microbial biomass, and enzymatic activities were analyzed in this study, and the control group had no plants. The results showed that heavy metal contents decreased with E.