Improving generation of HO and •OH at copper hexacyanocobaltate/graphene/ITO composite electrode for degradation of levofloxacin in photo-electro-Fenton process.

In this work, copper hexacyanocobaltate was electro-deposited at amino-graphene-coated indium-tin-oxide glass to form multifunctional heterogeneous catalyst (CuCoG/ITO), which was confirmed by field emission scanning microscope, infrared spectra, X-ray diffraction, and electro-chemistry techniques. A novel heterogeneous photo-electro-Fenton-like system was established using CuCoG/ITO as an air-diffusion electrode, in which hydrogen peroxide (HO) and hydroxyl radical (•OH) could be simultaneously generated by air O reduction. The productive rate of •OH could reached to 70.

Proteomic profiling uncovered the cytosolic superoxide dismutase BsSOD1 associated with plant defence in the herbal orchid Bletilla striata.

The herbal orchid Bletilla striata (Thunb.) Rchb.f.

[Effect of Two Soil Synergists on Ammonia Volatilization in Paddy Fields].

Nitrification inhibitor and biochar are commonly used as soil synergists. Among them, nitrification inhibitor can increase crop yields and N use efficiency, while biochar is a relatively new way of using biomass resources and has certain adsorption characteristics. In order to reduce nitrogen loss and environmental pollution caused by ammonia volatilization in paddy fields, a pot experiment with chemical fertilizer application (CN) as a control was conducted to study the effects of biochar (B), nitrapyrin (CP), and compound application (BCP) on pH, NH-N concentration dynamics in the flood water, rice yields, and ammonia volatilization from paddy fields.

Sucrose is involved in the regulation of iron deficiency responses in rice (Oryza sativa L.).

Sucrose signaling pathways were rapidly induced in response to early iron deficiency in rice plants, and the change of sucrose contents in plants was essential for the activation of iron deficiency responses. Sucrose is the main product of photosynthesis in plants, and it functions not only as an energy metabolite but also a signal molecule. However, a few studies have examined the involvement of sucrose in mediating iron deficiency responses in rice.

[Comparison on submergence tolerance of different type rice at tillering stage in lower reaches of Yangtze River].

The agronomic traits, physiological characteristics and yield traits of 9 rice varieties popularized in lower reaches of Yangtze River were investigated under submergence stress at the tillering stage. The differences of environmental adaptability to submergence stress for conventional japonica rice, indica hybrid rice and hybrid japonica rice, were also analyzed and compared. The results showed that the stem and the upper three leaves under submergence stress were elongated compared with the control.

Five pectinase gene expressions highly responding to heat stress in rice floral organs revealed by RNA-seq analysis.

Heat stress hurts rice, and floral organs are mostly sensitive to heat stress. We aimed to unravel molecular responses to heat stress in rice floral organs using Illumina/Solexa sequencing technology for addressing the increasing concern of globle warming. At meiophase of the pollen mother cell (pulvinus flat), the plants were stressed for 3 d at 38 C, and RNA was extracted from the stressed pistil and stamen for RNA-Seq sequencing to build the heat stress transcriptom library.

[Heavy metals content and pollution risk assessment of cropland soils around a pesticide industrial park].

By the method of concentric circle distribution method, a total of 183 topsoil samples were collected from 30-km2 area around a pesticide industrial park in south Jiangsu Province, with the content and pollution index of soil Cd, Cr, Cu, Ni, Pb, Zn, Hg and As analyzed. The average contents of Hg, Cu, Cd, and Pb in the top soils were higher than those of the natural background values, and the contents of Hg and Cu were the highest. Taking the national standard II as the assessment criterion, the average pollution index values of Cd, Cr, Cu, Ni, Pb, Zn, and As in the top soils were all below 1, while those of the Hg and Cu were 1.

[Strong stem effect and physiological characteristics of rice plant under rice-duck farming].

A field plot comparison experiment was conducted to study the strong stem effect and physiological characteristics of rice plant under rice-duck farming. The results showed that under rice-duck farming, the morphology of rice plant changed obviously, and the carbohydrate content and C/N ratio of the plant as well as the dry matter output from rice stem increased significantly, due to the activities of duck in paddy field. In the meantime, the length of basal internodes decreased by 2.

[Effects of relatively high temperature at grain-filling stage on rice grain's starch viscosity profile and magnesium and potassium contents].

With rice cultivars Yangdao 6 (Indica) and Wuyujing 3 (Japonica) as test materials, the effects of relatively high temperature (RHT, mean temperature 30 degrees C) at grain-filling stage (GFS) on the starch viscosity profile and magnesium (Mg) and potassium (K) contents of rice grain were studied in a phytotron. Four temperature treatments were installed, i.e.

The electrochemical modification of clenbuterol for biosensors of dopamine, norepinephrine, adrenalin, ascorbic acid and uric acid at paraffin-impregnated graphite electrode.

The electrochemical modification of clenbuterol (CLB) was studied at paraffin-impregnated graphite electrode (WGE) in two potential ranges of 0.0-1.6V and -1.

Defective intracellular Ca2+ homeostasis contributes to myocyte dysfunction during ventricular remodelling induced by chronic volume overload in rats.

1. Previous studies have demonstrated progressive ventricular hypertrophy, dilatation and contractile depression in response to chronic volume overload. Whether this decompensation was related to intrinsic myocyte dysfunction was not clear.

Effect of Cl- channel blockers on aconitine-induced arrhythmias in rat heart.

The effects of Cl- channel blockers 5-nitro-2-(3-phenylpropylamino)benzoic acid (NPPB) and niflumic acid (NFA) on aconitine-induced arrhythmias were investigated. Left ventricular pressure and electrocardiogram were monitored in Langendorff-perfused rat hearts. Whole-cell patch-clamp and current-clamp techniques were used to measure sodium current (I(Na)) and action potential (AP), respectively, in single rat cardiac ventricular myocytes.

Anion channels influence ECC by modulating L-type Ca(2+) channel in ventricular myocytes.

Anion channels are extensively expressed in the heart, but their roles in cardiac excitation-contraction coupling (ECC) are poorly understood. We, therefore, investigated the effects of anion channels on cardiac ventricular ECC. Edge detection, fura 2 fluorescence measurements, and whole cell patch-clamp techniques were used to measure cell shortening, the intracellular Ca(2+) transient, and the L-type Ca(2+) current (I(Ca,L)) in single rat ventricular myocytes.