1,856 results match your criteria: "Southwest Forestry University.[Affiliation]"

Microplastics (MPs), an emerging contaminant, have been widely detected in environmental media including water, sediment, soil, and atmosphere. Exploring the occurrence and transport characteristics of MPs in different environments is essential for accurately evaluating its ecological and environmental effects. However, the extent to which a free water surface (FWS) constructed wetland alters the occurrence characteristics of MPs in water has not been clearly elucidated.

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  • - The study investigates the aroma of Pu-erh tea by analyzing volatile compounds from five regions in Yunnan using advanced techniques like gas chromatography-mass spectrometry (GC-MS) and headspace solid phase microextraction (HS-SPME).
  • - A total of 69 aroma-active compounds were identified, with alcohols, ketones, and aldehydes being the most common, and significant differences in terpenoid enantiomers were noted.
  • - Important compounds were highlighted through statistical analysis, and a KEGG pathway analysis pointed to key metabolic pathways related to aroma compounds, indicating their roles in the tea's flavor profile.
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  • Wild edible boletes mushrooms are prized for their nutrition and aroma, leading researchers to analyze 445 samples from Yunnan and Sichuan provinces for molecular identification.
  • Using advanced techniques like simultaneous distillation-extraction and gas chromatography-mass spectrometry, they identified 97 volatile compounds and selected key ones for species differentiation.
  • The study also established effective prediction models for rapid identification of boletes species and their unique aroma compounds, enhancing understanding of these mushrooms.
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Supramolecular self-assembly for synthesis of novel chitosan-based adhesive in wood composites so as to improve waterproofing and flame retardancy.

Int J Biol Macromol

January 2025

Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China. Electronic address:

As awareness of building safety and fire prevention grows, the demand for fire-retardant materials is gradually increasing. The need for flame-retardant wood composites is particularly urgent in public, high-rise, and commercial buildings. However, most of the current research has focused on adding flame retardants, often at the expense of mechanical properties.

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Background: Venom serves as a pivotal parasitic factor employed by parasitoid wasps to manipulate their hosts, creating a favorable environment for the successful growth of their progeny, and ultimately kill the host. The bioactive molecules within parasitoid venoms exhibit insecticidal activities with promising prospects for agricultural applications. However, knowledge regarding the venom components of parasitoids and the discovery of functional biomolecules from them remains limited.

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  • - Nitrogen is crucial for plant growth but can limit it despite being abundant in the atmosphere; leguminous plants can naturally fix nitrogen with the help of rhizobia.
  • - This study analyzes data from 162 studies and finds that nitrogen enrichment generally increases legume biomass and nitrogen content, but also negatively affects root-to-shoot ratios and nodule characteristics.
  • - Legume growth responses to nitrogen enrichment are influenced by climatic conditions like temperature and precipitation, and show habitat-specific trends, with lower nitrogen additions resulting in greater biomass increases than high nitrogen levels.
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Soil fungi are closely tied to their surrounding environment. While numerous studies have reported the effects of land-use practices or elevations on soil fungi, our understanding of how their community structure and diversity vary with elevation across different land-use practices remains limited. In the present study, by collecting soil samples from four different land uses in the Gaoligong Mountain area, namely shrublands (SLs), coffee plantations (CPs), cornfields (CFs), and citrus orchards (COs), and combining them with the changes in altitude gradients (low: 900 m, medium: 1200 m, high: 1500 m), high-throughput sequencing technology was used to analyze the composition and diversity of soil fungal communities based on the collected soil samples.

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While investigating macrofungi diversity in Gansu province, northwestern China, five fresh and fleshy specimens were collected, which are characterized by nearly white to buff hemispherical pileus with waved margins, a disc depressed with coral to brownish red fibrillose scales, adnate to sub-decurrent lamellae with four relatively regular rows of lamellulae, a stipe that is central, hollow, frequently straight to curved; basidiospores that are globose to subglobose, 5.0-6.0 × (3.

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The Diversity and Taxonomy of Thelephoraceae (Basidiomycota) with Descriptions of Four Species from Southwestern China.

J Fungi (Basel)

November 2024

Yunnan Provincial Key Laboratory for Conservation and Utilization of In-Forest Resource, The Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, Southwest Forestry University, Kunming 650224, China.

Taxonomy plays a central role in understanding the diversity of life, translating the products of biological exploration and discovery specimens and observations into systems of names that settle a "classification home" to taxa. The ectomycorrhizal basidiomycetes family Thelephoraceae has been understudied in subtropical ecosystems. Many species of Thelephoraceae are important edible and medicinal fungi, with substantial economic value.

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A multiomics investigation into the evolution and specialized metabolisms of three Toxicodendron cultivars.

Plant J

December 2024

Key Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, 650224, China.

Toxicodendron species are economically and medicinally important trees because of their rich sources of natural products. We present three chromosome-level genome assemblies of Toxicodendron vernicifluum 'Dali', Toxicodendron succedaneum 'Vietnam', and T. succedaneum 'Japan', which display diverse production capacities of specialized metabolites.

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Numerical simulation of bubble rising behavior in a tannin-based foaming precursor resin.

Heliyon

November 2024

Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming, 650224, China.

A two-dimensional volume of fluid (VOF) model was developed to simulate the deformation of the bubble, the end speed of bubble rise, the distance of bubble rise and the movement trajectory in different initial conditions of tannin-based foaming precursor resin. In this study, bubble rising and coalescence characteristics are connected with parameters of the resin, especially viscosity, surface tension, the initial radius and location of the bubble also matter. The result shows that rising velocity of the bubble decreased as the viscosity increased, and at the same time, the flow rate of the bubble was lower.

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Article Synopsis
  • Water-soluble poly(vinyl alcohol) (PVA) has potential as an eco-friendly adhesive but struggles with water and mildew resistance in the wood industry.
  • Researchers synthesized a polyester-type PVA adhesive (CPVA) using PVA and citric acid, which improved its bonding performance, water resistance, and anti-mildew properties.
  • The CPVA adhesive met performance standards and showed good bonding with plywood and metals, making it a viable alternative for creating formaldehyde-free wood composites.
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New insights into the role of lipids in aroma formation during black tea processing revealed by integrated lipidomics and volatolomics.

Curr Res Food Sci

October 2024

Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China.

Lipids are important tea aroma precursors. Due to the complexity of black tea processing involving both enzymatic and thermal reactions, the role of lipids in black tea aroma formation remained unclear. Herein, the dynamic changes of lipids and volatiles during black tea processing were simultaneously analyzed by lipidomics and volatolomics using ultra-high-performance liquid chromatography coupled to Q-Exactive Orbitrap mass spectrometry (UHPLC-Q-Exactive) and gas chromatography-tandem mass spectrometry (GC-MS/MS).

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Multiscale cellulose-based optical management films with tunable transparency and haze fabricated by different bamboo components and mechanical defibrillation approaches.

Carbohydr Polym

January 2025

International Centre for Bamboo and Rattan, Beijing 100102, China; Key Laboratory of National Forestry and Grassland Administration, Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China. Electronic address:

Article Synopsis
  • Renewable cellulose from bamboo and parenchyma cells is being used to create biomass-based optical films that can be adjusted for transparency and haze levels.
  • Different separation and processing methods like ultrasonication, blending, and microfluidization were employed to produce these films with varying properties.
  • The study highlights a sustainable approach to developing films that balance transparency, haze, and strength, indicating potential applications in anti-glare technology.
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Fungicides are commonly applied through root irrigation in tobacco fields to control soil-borne diseases, and they affect soil microorganisms. However, the effects of metalaxyl-M and hymexazol, used to manage tobacco black shank disease, on these soil microecology remain poorly understood. This study employed high-throughput sequencing technology to explore the soil physical and chemical properties, soil enzyme activity, and the diversity, community structure and function of soil fungi in tobacco fields following root irrigation with metalaxyl-M and hymexazol.

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Solvent-free ball milling activation of cellulose for efficient surface modification and pyrolysis.

Int J Biol Macromol

December 2024

Department of Land, Environment, Agriculture and Forestry, University of Padova, Viale dell'Universita 16, Legnaro 35020, Italy.

Due to the innate recalcitrancy caused by robust hydrogen bonding interaction, cellulose cannot be easily processed into high-valued materials or chemicals. Herein, a solvent-free ball milling treatment was conducted to activate microcrystalline cellulose (MCC). The research results demonstrated that ball milling treatment rapidly reduced the average particle size (Ð) and crystalline index (CrI) of MCC.

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Carboxymethyl cellulose-induced Cryptococcus laurentii improves disease resistance and regulates phenylpropane and reactive oxygen metabolism in grapefruit.

Food Chem

February 2025

Forestry College, Southwest Forestry University, Kunming 650224, PR China; Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, PR China. Electronic address:

Article Synopsis
  • Green mould disease is a serious problem for the citrus industry, with Cryptococcus laurentii showing potential to boost fruit defense systems.
  • A study focused on the effects of C. laurentii cultured with carboxymethyl cellulose (CMCC. laurentii) on grapefruit, revealing that this treatment helps reduce disease symptoms and increases beneficial metabolic processes.
  • By enhancing gene expression related to yeast growth and activating crucial metabolic pathways, CMCC. laurentii improved phenylpropane and reactive oxygen metabolism, which ultimately helps maintain the quality of postharvest grapefruit.
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Macrophytes mitigate Microcystis aeruginosa-induced fish appetite suppression via intestinal metabolite regulation.

Ecotoxicol Environ Saf

December 2024

Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada. Electronic address:

Article Synopsis
  • Cyanobacterial blooms, specifically Microcystis aeruginosa, and aquatic plants like Ottelia acuminata can significantly impact the health and behavior of freshwater fish, particularly affecting their appetite and metabolism.
  • In a study involving stone moroko fish, exposure to M. aeruginosa led to an increase in appetite-inhibiting substances and a decrease in stimulatory ones, which indicates heightened stress levels related to their metabolic functions.
  • Interestingly, O. acuminata did not negatively affect the fish alone but appeared to mitigate some harmful effects of M. aeruginosa, suggesting a potential protective role worth further investigation.
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Background: The fall armyworm (FAW, Spodoptera frugiperda) threatens maize production worldwide, and benzoxazinoids (Bxs) are known as the main secondary metabolites produced by maize to defend against FAW. However, we do not yet know whether and in what ways certain endophytes in the digestive system of FAW can metabolize Bxs, thus enhancing the fitness of FAW when feeding on maize.

Results: Using Bxs as the sole carbon and nitrogen source, we isolated Pantoea dispersa from the guts of FAW.

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Revealing the dynamic changes of metabolites and molecular mechanisms of chlorogenic acid accumulation during the leaf development of based on multi-omic analyses.

Front Plant Sci

October 2024

Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.

, a medicinal plant, is utilized for Quezui Tea production from its leaf buds and young leaves. Despite prior research on revealing several medicinal compounds, the comprehensive variations in metabolites during its growth and development, along with the molecular mechanisms underlying high chlorogenic acid (CGA) yield, remain unclear. Through a joint analysis of transcriptomics and proteomics, our study first identified 15 key structural genes and 3 transcription factors influencing CGA biosynthesis in , offering new evidence to understand its regulatory network.

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Unveiling the co-expression network and molecular targets behind rotenone resistance in the Bursaphelenchus xylophilus.

Ecotoxicol Environ Saf

November 2024

Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, College of Forestry, Southwest Forestry University, Kunming 650224, China. Electronic address:

Bursaphelenchus xylophilus is a pathogenic nematode responsible for pine wilt disease, which can cause the demise of pine trees and discoloration of trunks. As rotenone is an important botanical pesticide, its impact on B. xylophilus was investigated through RNA-seq to understand the response mechanism of nematode.

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Accurately grasping the spatial network correlation structure of operational efficiency in star-rated hotels and its influencing factors is of great significance for promoting high-quality coordinated development of star-rated hotels and the regional tourism reception industry. Using a comprehensive approach integrating the Super-DEA model, modified gravity model, and social network analysis to explore the evolving characteristics of spatial network structure in operational efficiency of provincial star-rated hotels in China from 2013 to 2022, and their underlying mechanisms. The results indicate that: (1) During the study period, the average operational efficiency of star-rated hotels in China was 0.

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Megaprojects are becoming more and more essential for poverty reduction and inclusive development. Regrettably, the CPEC mega project has yet to yield successful outcomes in Pakistan. The incorporation of financial inclusion (FI) has the potential to catalyze its outcomes.

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Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres.

Int J Biol Macromol

December 2024

Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, People's Republic of China. Electronic address:

Article Synopsis
  • * Key factors affecting adsorption performance included the mass ratio of tannin to chitosan, pH levels, adsorption time, and initial metal ion concentrations, with a maximum adsorption capacity of 37.6 mg/g for Cu and 52.9 mg/g for Pb.
  • * The adsorption process primarily involved single-layer chemical adsorption and demonstrated high removal efficiencies of 82% for Cu and 95% for Pb, with the ability to release the adsorbed ions using a dilute strong acid.
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With the development of urbanization, the spatial and temporal distribution characteristics of the urban landscape pattern play a decisive role in the intensity of the urban heat island (UHI) effect. A panel data model was constructed to study the relationship between the UHI effect and landscape pattern in Kunming from 1995 to 2020 at four different scales. The results indicate: (1) The landscape pattern of Kunming changed obviously with time, the artificial patch increased, the natural patch decreased, and the UHI effect became more and more obvious; (2) With an increase in scale, the number of influencing variables continues to grow, and the impact of artificial patches gradually intensifies; (3) The normalized difference water index (NDWI) has the greatest influence on the UHI, and the cooling effect is more obvious with the increase in scale.

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