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Eco-friendly synthesis of gold nanoparticles using Equisetum diffusum D. Don. with broad-spectrum antibacterial, anticancer, antidiabetic, and antioxidant potentials

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Scientific Reports 2025年第1期15卷 1-16页

作者： Assad, Nasir Laila, Marzia Batool Hassan, Muhammad Naeem Ul Rehman, Muhammad Fayyaz ur Ali, Liaqat Mustaqeem, Muhammad Ullah, Barkat Khan, Muhammad Nauman Iqbal, Majid Ercişli, Sezai Alarfaj, Abdullah A. Ansari, Mohammad Javed Malik, Tabarak Institute of Chemistry University of Sargodha Sargodha 40100 Pakistan Department of Botany Islamia College Peshawar Peshawar 25120 Pakistan Biology Laboratory University Public School University of Peshawar Peshawar 25120 Pakistan Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences 11A Datun Road Chaoyang District Beijing 100101 China University of Chinese Academy of Sciences (UCAS) Beijing 100049 China Department of Horticulture Agricultural Faculty Ataturk University Erzurum Turkey HGF Agro Ata Teknokent Erzurum Turkey Department of Botany and Microbiology College of Science King Saud University Riyadh 11451 Saudi Arabia Department of Botany Hindu College Moradabad (Guru Jambheshwar University Moradabad) Uttar Pradesh 244001 India Department of Biomedical Sciences Institute of Health Jimma University Jimma 378 Ethiopia Division of Research & Development Lovely Professional University Phagwara 144401 India

The present study reports, the eco-friendly synthesis of gold nanoparticles (AuNPs) using Equisetum diffusum D. Don. extract, a medicinal plant known for its therapeutic properties. Phytochemicals present in the extract served as reducing and stabilizing agents for synthesizing stable AuNPs with an average size range of 68.8 nm. The biosynthesized AuNPs were characterized using UV–vis spectroscopy, FTIR, XRD, SEM, EDX, and dynamic light scattering (DLS) methods, confirming their stability, morphology, and crystalline nature. The green synthesized ED@AuNPs exhibited promising biological activities, including broad-spectrum antibacterial activity against both Gram-positive and Gram-negative bacteria, with inhibition zones from 24 to 37 mm. The anticancer activity was assessed through an MTT assay against hepatic carcinoma (HePG2) cells, revealing dose-dependent cytotoxicity with maximum inhibition at 200 µg/mL (47.62%). Antidiabetic activity was demonstrated by starch hydrolysis and enzyme kinetics, with significant α-amylase inhibitory activity up to 70.85%, comparable to the standard drug Acarbose. Moreover, antioxidant activity was conformed through FRAP and DPPH assays, indicating strong free radical scavenging activity and reducing ability. The study demonstrates the potential of biosynthesized ED@AuNPs as multifunctional agents with applications in biomedicine, particularly in antibacterial, anticancer, antidiabetic, and antioxidant therapies, offering an eco-friendly and sustainable approach for nanoparticle synthesis. © The Author(s) 2025.

关键词： Anticancer activity Antidiabetic activity Antioxidant activity Equisetum diffusum Gold nanoparticles Green synthesis

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Quantitative Classification and Ordination of Plant Communities in the Upper and Middle Reaches of the Yarlung Zangbo River Basin

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Journal of Resources and Ecology 2019年第4期10卷 389-396页

作者： WANG Tong WANG Jingsheng DING Yuke LIU Wenjing BAO Xiaoting LI Chao Qianyanzhou Ecological Research Station Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China Forest Inventory and Planning Institute of Tibet Autonomous Region Lhasa 850000 China School of Environment and Natural Resources Renmin University of China Beijing 100872 China

Based on vegetation survey data and environmental data of the Yarlung Zangbo River Basin, we conducted a quantitative ecological analysis of the vegetation community composition and the relationship between species and the environment in the study area. The results showed that 44 sampling sites and 68 plant species in the study area can be classified into seven subtypes: Artemisia minor + Stipa purpurea;Artemisia demissa + Stipa purpurea + Artemisia wellbyi;Kobresia pygmaea;Trikeraia hookeri;Sophora moorcroftiana + Cotoneaster multiflorus + Pennisetum centrasiaticum;Artemisia frigida;Potentilla fruticosa + Orinus thoroldii. Detrended correspondence analysis(DCA) indicated that both longitude and altitude play important roles in site and species distribution patterns. In addition, canonical correspondence analysis(CCA) revealed that in the upper and middle reaches of the Yarlung Zangbo River Basin, changes in temperature and precipitation caused by longitude are the main factors controlling the formation and transition of vegetation community types. Moreover, natural vegetation could be divided into three types: desert steppe community(source area), alpine steppe community(middle reaches region), and shrub community(confluence of Yarlung Zangbo River and Nyangqu River).

关键词： upper and middle reaches of the Yarlung Zangbo River plant community quantitative classification ordination

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Relative importance between nitrification and denitrification to N2O from a global perspective

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Global Change Biology 2023年第1期30卷

作者： Bingbing Han Yanzhong Yao Bin Liu Yini Wang Xiaoxuan Su Lihua Ma Dunyi Liu Shuli Niu Xinping Chen Zhaolei Li Key Laboratory of Low-Carbon Green Agriculture Ministry of Agriculture and Rural Affairs Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and Environment and Academy of Agricultural Sciences Southwest University Chongqing China Contribution: Conceptualization Data curation Investigation Methodology Resources Software Supervision Validation Visualization Writing - original draft Writing - review & editing Contribution: Data curation Formal analysis Methodology Software Supervision Visualization Contribution: Methodology Supervision Visualization Contribution: Methodology Supervision Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China Contribution: Conceptualization Project administration Supervision Writing - review & editing Contribution: Conceptualization Data curation Formal analysis Funding acquisition Investigation Methodology Project administration Resources Software Supervision Validation Visualization Writing - original draft Writing - review & editing

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Crop residue-derived dissolved organic matter accelerates the decomposition of native soil organic carbon in a temperate agricultural ecosystem

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Acta Ecologica Sinica 2019年第1期39卷 69-76页

作者： Qiu, Qingyan Wu, Lanfang Li, Binbin Forest Ecology Stable Isotope Center College of Forestry Fujian Agriculture and Forestry University Fuzhou 350002 China Yucheng Comprehensive Experiment Station Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China 11A Datun Road Chaoyang District Beijing 100101 China

Crop residue-derived dissolved organic matter (DOM) plays an important role in soil carbon (C) cycling. To investigate the effects of maize residue-derived DOM and urea additions on the native soil organic carbon (SOC) decomposition and soil net C balance a pot experiment was carried out during the winter wheat growing season in the North China Plain (NCP). The results showed that adding maize residue-derived DOM alone (RDOM) or together with urea (RDOM + N) accelerated the decomposition of native SOC and resulted in a net SOC loss. The net loss of SOC was 3.90 ± 0.61 and 3.53 ± 0.48 g C m⁻² in RDOM and RDOM + N treatments, respectively. The stimulatory effect of per unit DOM-C addition on the native SOC decomposition was 0.25 ± 0.05 and 0.45 ± 0.07 for the RDOM and RDOM + N treatments, respectively. Increases in the microbial biomass and the activity of β-glucosidase, invertase and cellobiohydrolase as well as soil mineral N content were responsible for a more intense priming effect in DOM-amended soils. The positive relationship between primed soil C and soil available N (R = 0.76, P b 0.05) suggested that the stimulation of decomposition of native SOC by DOM addition would be enhanced by nitrogen fertilizer application. © 2018 Ecological Society of China. Published by Elsevier B.V. All rights reserved.

关键词： Carbon sequestration Dissolved organic matter Enzyme activity Priming effect Soil N availability

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Responses of greenhouse gas fluxes to experimental warming in wheat season under conventional tillage and no-tillage fields

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Journal of Environmental Sciences 2017年第4期29卷 314-327页

作者： Chun Tu Fadong Li Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences University of Chinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences

Understanding the effects of warming on greenhouse gas（GHG, such as N2O, CH4 and CO2 ）feedbacks to climate change represents the major environmental issue. However, little information is available on how warming effects on GHG fluxes in farmland of North China Plain（NCP）. An infrared warming simulation experiment was used to assess the responses of N2O, CH4 and CO2 to warming in wheat season of 2012–2014 from conventional tillage（CT） and no-tillage（NT） systems. The results showed that warming increased cumulative N2O emission by 7.7% in CT but decreased it by 9.7% in NT fields（p 〈 0.05）. Cumulative CH4 uptake and CO2 emission were increased by 28.7%–51.7% and 6.3%–15.9% in both two tillage systems,respectively（p 〈 0.05）. The stepwise regressions relationship between GHG fluxes and soil temperature and soil moisture indicated that the supply soil moisture due to irrigation and precipitation would enhance the positive warming effects on GHG fluxes in two wheat ***, in 2013, the long-term drought stress due to infrared warming and less precipitation decreased N2O and CO2 emission in warmed treatments. In contrast, warming during this time increased CH4 emission from deep soil depth. Across two years wheat seasons, warming significantly decreased by 30.3% and 63.9% sustained-flux global warming potential（SGWP） of N2O and CH4 expressed as CO2 equivalent in CT and NT fields, respectively. However, increase in soil CO2 emission indicated that future warming projection might provide positive feedback between soil C release and global warming in NCP.

关键词： Climate warming Greenhouse gas fluxes（N2O CH4 CO2） Conventional tillage No-tillage Soil temperature Soil moisture

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Latitudinal patterns and influencing factors of soil humic carbon fractions from tropical to temperate forests

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Journal of Geographical Sciences 2018年第1期28卷 15-30页

作者：徐丽王春燕朱剑兴高扬李美玲吕瑜良于贵瑞何念鹏 Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research CAS College of Resources and Environment University of Chinese Academy of Sciences Branch of Experimental School of Beihang University College of Geographical Science Southwest University

Soil humic carbon is an important component of soil organic carbon （SOC） in ter- restrial ecosystems. However, no study to date has investigated its geographical patterns and the main factors that influence it at a large scale, despite the fact that it is critical for exploring the influence of climate change on soil C storage and turnover. We measured levels of SOC, humic acid carbon （HAC）, fulvic acid carbon （FAC）, humin carbon （HUC）, and extractable humus carbon （HEC） in the 0-10 cm soil layer in nine typical forests along the 3800-km North-South Transect of Eastern China （NSTEC） to elucidate the latitudinal patterns of soil humic carbon fractions and their main influencing factors. SOC, HAC, FAC, HUC, and HEC increased with increasing latitude （all P〈0.001）, and exhibited a general trend of tropical 〈 subtropical 〈 temperate. The ratios of humic C fractions to SOC were 9.48%-12.27% （HAC）, 20.68%-29.31% （FAC）, and 59.37%-61.38% （HUC）. Climate, soil texture, and soil microbes jointly explained more than 90% of the latitudinal variation in SOC, HAC, FAC, HEC, and HUC and interactive effects were important. These findings elucidate latitudinal patterns of soil humic C fractions in forests at a large scale, and may improve models of soil C turnover and storage.

关键词： humic acid carbon humin latitude pattern soil organic carbon NSTEC

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Temporal variations of δ 13 C-CH 4 in rice paddies dominated by plant-mediated pathway

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iScience 2025年

作者： Ji Li Huilin Chen Aijun Ding Xuguang Chi Weimin Ju Yongguang Zhang Philippe Ciais Wenping Yuan Shushi Peng Zeqing Ma Guirui Yu Jing M. Chen Joint International Research Laboratory of Atmospheric and Earth System Sciences School of Atmospheric Sciences Nanjing University Nanjing China Jiangsu Provincal Collorative Innovation Center of Climate Change Nanjing China Frontiers Science Center for Critical Earth Material Cycling Nanjing University Nanjing 210023 China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources School of Geography and Ocean Science Nanjing University Nanjing Jiangsu China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application International Institute for Earth System Sciences Nanjing University Nanjing Jiangsu 210023 China Laboratoire des Sciences du Climat et de l’Environnement LSCE/IPSL CEA-CNRS-UVSQ Université Paris-Saclay Climate and Atmosphere Research Center (CARE-C) The Cyprus Institute Nicosia Cyprus Gif-sur-Yvette France Institute of Carbon Neutrality Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University Beijing China Laboratory for Earth Surface Processes Peking University Beijing China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China College of Resources and Environment University of Chinese Academy of Sciences Beijing China School of Geographical Science Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education Fujian Normal University Fuzhou 350008 China Department of Geography and Planning University of Toronto Toronto ON M5S 3G3 Canada

The stable carbon isotope signature of methane (δ 13 C-CH 4 ) helps constrain CH 4 emissions on regional to global scales, yet observations in rice paddies remain limited. The temporal dynamics of δ 13 C-CH 4 and its drivers in rice paddies are still not fully understood. Here, we conducted continuous in situ observations of CH 4 and δ 13 C-CH 4 at three canopy heights throughout a rice growing season. We investigated the emission source signature (δ 13 C source ) and partitioned it into plant-mediated (δ 13 C P ) and non-plant-mediated (δ 13 C NP ) pathways. δ 13 C source exhibited significant temporal and vertical variability, influenced by transport pathways and external sources. We found that temporal variations in δ 13 C source were strongly correlated with rice photosynthesis and predominantly driven by δ 13 C P . Our results show that plant-mediated transport, rather than CH 4 production, dominates δ 13 C source variability. These findings provide new insight into the δ 13 C source dynamics in rice paddies and will be crucial for improving regional-to-global estimates of CH 4 fluxes from rice agriculture.

关键词： δ 13 C-CH 4 Rice paddies Plant-mediated pathway Photosynthesis

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Corrigendum to “Gross mineralization and nitrification in degraded alpine grassland soil” [Rhizosphere Volume 27 , September 2023, 100778]

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Rhizosphere 2024年 30卷

作者： Peng Jin Min Liu Xingliang Xu Yue Sun Yakov Kuzyakov Anna Gunina Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences 11A Datun Road Chaoyang District Beijing 100101 China College of Resources and Environment University of Chinese Academy of Sciences Yanqi Lake Huairou District Beijing 101408 China Department of Earth and Environmental Science University of Manchester Manchester M13 9PY United Kingdom Department of Agroecology BayCEER University of Bayreuth Bayreuth 95447 Germany Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil Science University of Göttingen 37077 Göttingen Germany Peoples Friendship University of Russia (RUDN University) 117198 Moscow Russia Institute of Environmental Sciences Kazan Federal University 420049 Kazan Russia Kassel University Department of Environmental Chemistry 37213 Germany Tyumen State University 625003 Tyumen Russia

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Towards an actionable One Health approach

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Infectious Diseases of Poverty 2024年第2期13卷 77-82页

作者： Xiao-Xi Zhang Zohar Lederman Le-Fei Han Janna M.Schurer Li-Hua Xiao Zhi-Bing Zhang Qiu-Lan Chen Dirk Pfeiffer Michael P.Ward Banchob Sripa Sarah Gabriël Kuldeep Dhama Krishna Prasad Acharya Lucy J.Robertson Sharon L.Deem Cécile Aenishaenslin Filipe Dantas-Torres Domenico Otranto Delia Grace Yang Wang Peng Li Chao Fu Patrícia Poeta Md.Tanvir Rahman Kokouvi Kassegne Yong-Zhang Zhu Kun Yin Jiming Liu Zhao-Jun Wang Xiao-Kui Guo Wen-Feng Gong Bernhard Schwartländer Ming-Hui Ren Xiao-Nong Zhou School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiPeople’s Republic of China Institute of One Health Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China Medical Ethics and Humanities Unit Hong Kong UniversityHong KongPeople’s Republic of China Center for One Health University of Global Health EquityButaroRwanda College of Veterinary Medicine South China Agricultural UniversityGuangzhouPeople’s Republic of China School of Ecology and Environment Hainan UniversityHaikouHainanPeople’s Republic of China Branch of animal and vector-borne diseases Division of Infectious Disease ControlChinese Center for Disease Control and PreventionBeijingPeople’s Republic of China Centre for Applied One Health Research and Policy Advice Department of Infectious Diseases and Public HealthJockey Club College of Veterinary Medicine and Life SciencesCity University of Hong KongHong Kong SARPeople’s Republic of China Department of Pathobiology and Population Sciences Royal Veterinary CollegeLondonUnited Kingdom Sydney School of Veterinary Science The University of SydneyCamdenAustralia Tropical Disease Research Center Department of Tropical MedicineFaculty of MedicineKhon Kaen UniversityKhon KaenThailand Laboratory of foodborne parasitic zoonoses Department of translational physiologyinfectiology and public healthChair Faculty Committee on InternationalisationFaculty of Veterinary MedicineGhent UniversityMerelbekeBelgium Division of Pathology ICAR-Indian Veterinary Research Institute(IVRI)BareillyUttar PradeshIndia Department of Livestock Services Animal Quarantine Office-KathmanduBudhanilkanthaKathmanduNepal Parasitology Department of Paraclinical SciencesFaculty of Veterinary MedicineNorwegian University of Life SciencesÅsNorway One Government Drive Saint Louis Zoo Institute for Conservation MedicineSt.LouisUSA Groupe de Recherche enÉpidémiologie des Zoonoses et SantéPublique(GREZOSP) Facultéde médecine v

Background Despite the increasing focus on strengthening One Health capacity building on global level,challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific *** these gaps,the One Health Action Commission(OHAC)was established as an academic community for One Health action with an emphasis on research agenda setting to identify actions for highest *** text This viewpoint describes the agenda of,and motivation for,the recently formed *** the urgent need for evidence to support the formulation of necessary action plans,OHAC advocates the adoption of both bottom-up and top-down approaches to identify the current gaps in combating zoonoses,antimicrobial resistance,addressing food safety,and to enhance capacity building for context-sensitive One Health *** By promoting broader engagement and connection of multidisciplinary stakeholders,OHAC envisions a collaborative global platform for the generation of innovative One Health knowledge,distilled practical experience and actionable policy advice,guided by strong ethical principles of One Health.

关键词： One Health Global Health One Health Action Commission Research agenda

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Regional Variation in Carbon Sequestration Potential of Forest ecosystems in China

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Chinese Geographical Science 2017年第3期27卷 337-350页

作者： XU Li WEN Ding ZHU Jianxing HE Nianpeng Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of ScienceBeijing 100101China University of Chinese Academy of Sciences Beo'ing 10049China

Enhancing forest carbon(C) storage is recognized as one of the most economic and green approaches to offsetting anthropogenic CO_2 emissions. However, experimental evidence for C sequestration potential(C_(sp)) in China's forest ecosystems and its spatial patterns remain unclear, although a deep understanding is essential for policy-makers making decisions on reforestation. Here, we surveyed the literature from 2004 to 2014 to obtain C density data on forest ecosystems in China and used mature forests as a reference to explore C_(sp). The results showed that the C densities of vegetation and soil(0–100 cm) in China's forest ecosystems were about 69.23 Mg C/ha and 116.52 Mg C/ha, respectively. In mature forests, the C_(sp) of vegetation and soil are expected to increase to 129.26 Mg C/ha(87.1%) and 154.39 Mg C/ha(32.4%) in the coming decades, respectively. Moreover, the potential increase of C storage in vegetation(10.81 Pg C) is estimated at approximately twice that of soil(5.01 Pg C). Higher C_(sp) may occur in the subtropical humid regions and policy-makers should pay particular attention to the development of new reforestation strategies for these areas. In addition to soil nutrients and environment, climate was an important factor influencing the spatial patterns of C density in forest ecosystems in China. Interestingly, climate influenced the spatial patterns of vegetation and soil C density via different routes, having a positive effect on vegetation C density and a negative effect on soil C density. This estimation of the potential for increasing forest C storage provided new insights into the vital roles of China's forest ecosystems in future C sequestration. More importantly, our findings emphasize that climate constraints on forest C sequestration should be considered in reforestation strategies in China because the effects of climate were the opposite for spatial patterns of C density in vegetation and *** forest carbon(C) storage is recognized

关键词： carbon density forest reforestation storage sequestration potential

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