Publications by authors named "Zheng-quan Wang"

The orientation of the oligophagous cone-feeding moth Dioryctria abietella (Lepidoptera: Pyralidae) to host plants primarily relies on olfactory-related proteins, particularly those candidates highly expressed in antennae. Here, through a combination of expression profile, ligand-binding assay, molecular docking and site-directed mutagenesis strategies, we characterized the chemosensory protein (CSP) gene family in D. abietella.

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In the forest ecosystem dominated by the Pinaceae plants, this boring pest Dioryctria abietella is subject to a variety of odorants derived from host and nonhost plants, in which olfactory-related proteins enriched in antennae are key behavioral modulators for the orientation of feeding and ovipositing hosts. Here, we addressed the odorant binding protein (OBP) gene family in D. abietella.

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During the past decade, antennal transcriptome sequencing has been applied to at least 50 species from 16 families of the Lepidoptera order of insects, emphasizing the identification and characterization of chemosensory-related genes. However, little is known about the chemosensory genes in the Zygaenidae family of Lepidoptera. Herein, we report the transmembrane protein gene repertoires involved in chemoreception from Achelura yunnanensis (Lepidoptera: Zygaenidae) through transcriptome sequencing, bioinformatics, phylogenetics and polymerase chain reaction (PCR) approaches.

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The common cutworm, Spodoptera litura, is a polyandrous moth with high reproductive ability. Sexual reproduction is a unique strategy for survival and reproduction of population in this species. However, to date available information about its reproductive genes is rare.

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The longhorned beetles, Rhaphuma horsfieldi and Xylotrechus quadripes, are two polyphagous insects with larvae feeding on different host plants. In this study, we identified and characterized three gene superfamilies of cytochrome P450s (CYPs), carboxylesterases (COEs) and glutathione-S-transferases (GSTs) involved in the detoxification of endobiotics (e.g.

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Fertilization failure often occurs during in vitro fertilization (IVF) cycles despite apparently normal sperm and oocytes. Accumulating evidence suggests that mitochondria play crucial roles in the regulation of sperm function and male fertility. 3-Nitrophthalic acid (3-NPA) can induce oxidative stress in mitochondria, and melatonin, as an antioxidant, can improve mitochondrial function by reducing mitochondrial oxidative stress.

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Fifty percent of the deaths caused by severe trauma occur within 1 h after injury. With the concepts of "golden 1 h" and "platinum 10 min", the professionals in the field of emergency trauma treatment have agreed on the necessity of establishing a rapid and efficient trauma rescue system. However, due to the size of the hospital, the population in the neighborhood, the local economic conditions and geographical features, how to establish an optimal trauma rescue system remains an issue.

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Global climate changes would lead to outbreaks of leaf-feeding insects. Leaf loss could reduce photosynthate production, with consequences on non-structural carbohydrates (NSC) storage and allocation in trees. In this study, the responses of NSC and its compartment concentrations in tap-, coarse- and the first to fifth order fine roots of 2-year-old seedlings of Fraxinus mandshurica to defoliation (40% loss of leaf area) were measured from June to October.

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Article Synopsis
  • Increased nitrogen (N) availability significantly impacts the structure and function of forest ecosystems, particularly fine root systems, which are essential for belowground ecological processes.
  • The study found that while root anatomy showed increases in cross-sectional areas and vessel dimensions with higher N levels, other features like cortex thickness and numbers of cortical cells decreased, indicating complex hormonal influences.
  • Mycorrhizal colonization responses varied, with a decrease in arbuscular mycorrhizal species and an overall increase in ectomycorrhizal species under higher N, illuminating gaps in our understanding of nutrient and carbon cycles in forest ecosystems and suggesting areas for future research.
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  • * Eleven peptides were identified, with His-Gly-Lys showing the strongest ability to inhibit calcium elevation in vascular smooth muscle cells stimulated by angiotensin II.
  • * The research highlighted that specific modifications of the His-Gly-Lys peptide, such as the presence of certain amino acids, contribute to its effectiveness in reducing intracellular calcium levels.
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Taking a 23 years old Phellodendron amurense plantation as test object, the first five order roots of P. amurense were sampled to study the seasonal dynamics of their total carbon (TC), total nitrogen (TN), total non-structural carbohydrates (TNC), and soluble N concentrations, with the correlations among these parameters analyzed. In the first five order roots, the TNC occupied 49% of TC, and the soluble N accounted for 26% of TN.

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Minirhizotron approach was employed to investigate the seasonal variations of fine root production and mortality in Larix gmelinii plantation in 2004-2008. At the same time, air temperature, precipitation, and soil temperature and moisture at 10 cm depth were recorded. The overall aim of this study was to determine the seasonal patterns of fine root production and mortality in the plantation, and their relationships with the four environmental factors.

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Root observation tubes (minirhizotrons) were used to study the effects of nitrogen addition on the fine root growth of Fraxinus mandshurica and Larix gmelinii, with the correlations between the fine root lifespan and nitrogen availability analyzed. After the nitrogen addition, the fine root number of F. mandshurica and L.

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This paper studied the seasonal dynamics of soil microbial biomass C (Cmic) and N (Nmic), and of bacteria (cfu(b)), fungi (cfu(f)), and actinomyces (cfu(a)) in Larix gmelinii and Fraxinus mandshurica plantations in 2007-2008 under N fertilization. The two-year averaged soil Cmic and Nmic in L. gmelinii plantation were 13.

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  • A modified QuEChERS-GC-MS method was developed to analyze procymidone residues in leeks and soil, with a focus on microwave treatment and acetonitrile extraction for better accuracy.
  • Field trials showed that the dissipation of procymidone was relatively fast, with half-lives of 4.52-8.76 days in leeks and 3.76-5.65 days in soil.
  • Residue levels at pre-harvest intervals ranged from 0.033 to 0.17 mg/kg in leeks and 0.020 to 1.75 mg/kg in soil, with variations influenced by environmental factors, growth dilution, and soil characteristics.
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With sand culture in greenhouse, the responses of Fraxinus mandshurica seedlings growth, biomass, and N allocation to 2 levels of light intensity and 4 levels of N supply were studied. The results showed that under low light intensity, the seedlings shoot/root ratio (S/R) and net N uptake rate (NNUR) increased significantly (P < 0.01), but their relative growth rate (RGR) and net assimilation rate (NAR) had a significant decrease (P < 0.

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In this paper, the first order roots of Larix gmelinii plantation under N fertilization were sampled from different soil depths in different seasons to study their morphology under effects of ectomycorrhizal fungi. The results showed that the infection rate of ectomycorrhizal fungi on the first order roots was significantly affected by soil N availability, soil depth, and season. N fertilization induced a decrease of the infection rate, and the decrement varied with soil depth and season.

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Soil nitrogen (N) is one of the mineral elements absorbed in large amount by plant roots, while global change could affect its availability, and furthermore, affect the carbon (C) allocation in terrestrial ecosystem. Therefore, the study of plant root N uptake and regulation becomes an important issue in predicting the structure and function of ecosystem. In the biosphere, plants are exposed to different N forms, and long-term biological evolution and environmental adaptation resulted in a significant distinction of plant root N uptake regions and metabolic processes, as well as the regulation of the N uptake.

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  • The study focused on a 16-year-old Larix kaempferi plantation in Liaoning Province, analyzing how fertilization affects total fine root biomass across different soil depths and root orders.
  • Results indicated that nitrogen (N) fertilization significantly reduced total fine root biomass compared to no fertilization, while phosphorus (P) and the combination of N and P showed no significant difference.
  • Fine roots in the top soil (0-10 cm) were much more abundant, accounting for 64%-73% of total biomass, with N fertilization notably decreasing fine root biomass across various orders, while N + P fertilization led to a significant increase in first-order fine roots in the subsoil.
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