Attenuated asymmetry of above- versus belowground stoichiometry to a decadal nitrogen addition during stand development.

Deciphering the linkage between ecological stoichiometry and ecosystem functioning under anthropogenic nitrogen (N) deposition is critical for understanding the impact of afforestation on terrestrial carbon (C) sequestration. However, the specific changes in above- versus belowground stoichiometric asymmetry with stand age in response to long-term N addition remain poorly understood. In this study, we investigated changes in stoichiometry following a decadal addition of three levels of N (control, no N addition; low N addition, 20 kg N ha year; high N addition, 50 kg N ha year) in young, intermediate, and mature stands in three temperate larch plantations (Larix principis-rupprechtii) in North China.

A Plant Dye for Photocatalytic Methane Conversion.

A metal-free natural dye has been developed to selectively convert methane to methyl trifluoroacetate (CH TFA) using visible light, probably due to the formation of a chloride-bridged dimer undergoing fast intra-complex charge transfer.

Why Ligand Doping Increases the Fluorescence of an Anthracene-Based Metal-Organic Framework.

Metal-organic frameworks (MOFs) built from fluorescent ligands frequently exhibit enhanced fluorescence when doped with inert ligands. This study focuses on a MOF of the UiO-68 structure, which is built from a fluorescent dibenzoate-anthracene ligand doped with a dibenzoate-benzene ligand. Our investigation aims to understand the mechanism behind the doping-enhanced emission of this MOF.

Why can poorly conductive Bi@UiO-MOF catalyze CO electroreduction?

Metal NP @ metal-organic frameworks (MOFs) are widely used in electrocatalysis. However, many of the MOFs are poorly conductive. Here, we loaded bismuth (Bi) into a Zr-based MOF of the UiO structure that is active for CO reduction to formate and found that a moderate conductivity of the nanosized MOFs is sufficient to support a reasonably high catalytic current density.

The Role of in the Lobed Leaf Formation of var. .

A lobed leaf is a common trait in plants, but it is very rare in Lauraceae plants, including species of In the study of germplasm resources of , we found lobed leaf variant seedlings, and the variation could be inherited stably. Studying the lobed leaf mechanism of var. can offer insight into the leaf development mechanism of woody plants.

Genome-Wide Identification and Analysis of the Gene Family and Its Role in Carotenoid Biosynthesis in Wolfberry ( L.).

The B-box proteins (BBXs) are a family of zinc-finger transcription factors with one/two B-Box domain(s) and play important roles in plant growth and development as well as stress responses. Wolfberry ( L.) is an important traditional medicinal and food supplement in China, and its genome has recently been released.

Comparative Transcriptome Analysis Revealing the Potential Mechanism of Low-Temperature Stress in .

is a rare national tree species in China and possesses important ornamental and ecological value. can be planted in low-temperature areas, depending on whether its seedlings can withstand the harm. To face this problem, the annual seedlings of were subjected to five temperature treatments, and eight physiological indicators were measured.

Widely-Targeted Metabolic Profiling in Fruits under Salt-Alkaline Stress Uncovers Mechanism of Salinity Tolerance.

Wolfberry ( L.) is an important economic crop widely grown in China. The effects of salt-alkaline stress on metabolites accumulation in the salt-tolerant wolfberry fruits were evaluated across 12 salt-alkaline stress gradients.

Genome-Wide Comparative Analysis of the Gene Family in Five Solanaceae Species and Identification of Members Regulating Carotenoid Biosynthesis in Wolfberry.

The is a large gene family involved in various plant functions, including carotenoid biosynthesis. However, this gene family lacks a comprehensive analysis in wolfberry ( L.) and other Solanaceae species.

Synthesis and Photocatalytic Activity of TiO/CdS Nanocomposites with Co-Exposed Anatase Highly Reactive Facets.

In this work, TiO/CdS nanocomposites with co-exposed {101}/[111]-facets (NH4F-TiO2/CdS), {101}/{010} facets (FMA-TiO2/CdS), and {101}/{010}/[111]-facets (HF-TiO2/CdS and Urea-TiO2/CdS) were successfully synthesized through a one-pot solvothermal method by using [TiO] colloidal solution containing CdS crystals as the precursor. The crystal structure, morphology, specific surface area, pore size distribution, separation, and recombination of photogenerated electrons/holes of the TiO/CdS nanocomposites were characterized. The photocatalytic activity and cycling performance of the TiO/CdS nanocomposites were also investigated.

Machine-Learning-Guided Discovery and Optimization of Additives in Preparing Cu Catalysts for CO Reduction.

Discovery and optimization of new catalysts can be potentially accelerated by efficient data analysis using machine-learning (ML). In this paper, we record the process of searching for additives in the electrochemical deposition of Cu catalysts for CO reduction (CORR) using ML, which includes three iterative cycles: "experimental test; ML analysis; prediction and redesign". Cu catalysts are known for CORR to obtain a range of products including C (CO, HCOOH, CH, CHOH) and C (CH, CH, CHOH, CHOH).

Cooperative Stabilization of the [Pyridinium-CO-Co] Adduct on a Metal-Organic Layer Enhances Electrocatalytic CO Reduction.

Pyridinium has been shown to be a cocatalyst for the electrochemical reduction of CO on metal and semiconductor electrodes, but its exact role has been difficult to elucidate. In this work, we create cooperative cobalt-protoporphyrin (CoPP) and pyridine/pyridinium (py/pyH) catalytic sites on metal-organic layers (MOLs) for an electrocatalytic CO reduction reaction (CORR). Constructed from [Hf(μ-O)(μ-OH)(HCO)] secondary building units (SBUs) and terpyridine-based tricarboxylate ligands, the MOL was postsynthetically functionalized with CoPP via carboxylate exchange with formate capping groups.

Inhibition of microRNA-218 reduces HIF-1α by targeting on Robo1 in mice aortic endothelial cells under intermittent hypoxia.

Objective: To investigate the effects of miR-218 on expression of hypoxia-inducible factors 1α (HIF-1α), vascular endothelial growth factor (VEGF) and cell apoptosis in normal mice aortic endothelial cells under intermittent hypoxia (IH) condition.

Methods: Anti-miR-218 inhibitor, miR-negative control and miR-218 mimic were used to tranfect the cells in different groups under IH condition. Both RT-PCR and Western blot were used to determine the expressions of HIF-1α and VEGF.