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Soil microbial respiration is regulated by stoichiometric imbalances: Evidence from a humidity gradient case

Pedosphere 2023年第6期33卷 905-915页

作者： Jiwei LI Jiangbo XIE Jianzhao WU Yongxing CUI Lingbo DONG yulin LIU Xuying HAI Yan LI Zhouping SHANGGUAN Kaibo wang Changhui PENG Lei DENG State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau College of Soil and Water Conservation Science and Engineering(Institute of Soil and Water Conservation)Northwest A&F UniversityYangling 712100China institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYangling 712100China State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityLin'an 311300China Sino-French institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100871China University of chinese Academy of sciences Beijing 100049China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710061China Center of CEF/ESCER Department of Biological ScienceUniversity of Quebec at MontrealMontreal H3C 3P8Canada

Humidity not only affects soil microbial respiration(SMR) directly, but, indirectly by regulating the availability of soil water and nutrients. However,the patterns of direct and indirect effects of humidity on SMR over large precipitation gradients remain unclear, limiting our understanding of the effects of precipitation changes on soil C cycle. Here, we investigated the relationships among humidity, soil nutrients, and SMR by identifying stoichiometric imbalances, microbial elemental homeostasis, and microbial C use efficiency along a precipitation gradient at a continental scale. The relationship between SMR and humidity index(HI) corresponded to a Richard’s curve with an inflection point threshold value of approximately 0.7. Soil microbial respiration increased with increasing humidity in drier areas(HI 0.7). Soil microbial communities regulated their enzyme production to maintain a strong stoichiometric homeostasis in drier areas;enzyme production, microbial biomass, and threshold elemental ratios were non-homeostatic under P limitation in wetter areas, which further contributed to the increase in SMR. Our results identified a moisture constraint on SMR in drier areas and highlighted the importance of nutrient(especially for P) limitations induced by humidity in regulating SMR in wetter areas. Understanding the modulation of SMR via soil enzyme activity may improve the prediction of soil C budget under future global climate change.

关键词： carbon use efficiency ecological stoichiometry microorganisms nutrient limitations precipitation soil enzyme activities stoichiometric homeostasis

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Burning magnesium in carbon dioxide for highly effective phosphate removal

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Carbon Energy 2021年第2期3卷 330-337页

作者： Ying Yao Lei Yu Meiling wang Alvin Dai Yan Zhang Qiubo Guo yulin Lin JianguoWen Feng Wu Xiulei Ji Jun Lu School of Materials Science and Engineering Beijing Key Laboratory of Environmental Science and EngineeringBeijing Institute of TechnologyBeijingChina Center for Nanoscale Materials Argonne National LaboratoryLemontIllinois Chemical sciences and Engineering Division Argonne National LaboratoryLemontIllinois Department of Chemistry Oregon State UniversityCorvallisOregon

Magnesium oxide was found to have high-phosphate-affinity as an effective component to enhance the phosphate removal ability of common adsorbent ***,the currently prepared MgO-based hybrid adsorbents by conventional methods still suffer from the limited low loading of MgO and inferior removal performances,much far away from practical *** this study,an ingenious carbon coated MgO nanocomposite is designed by directly burning magnesium in CO_(2.,a well-known textbook reaction.X-ray diffraction analysis,scanning electron microscope and aberration-corrected high-resolution transmission electron microscope demonstrate the sample is well ***,the high content of nanosized MgO combined with defect-rich carbon layer brings unprecedented phosphate removal capacity of 1135.0 mg/g,removal rate of 99% and benign compatibility with coexisting anions and solution ***,the removal mechanism is also investigated in detail by characterizing the sample before and after adsorption.

关键词： carbon dioxide carbon layer magnesium oxide nanocomposite phosphorus removal

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Characterization of two SARS-CoV-2.subgenomic RNA dynamics in severe COVID-19 patients

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Virologica Sinica 2022年第1期37卷 30-37页

作者： Xiaohui Zou Shengrui Mu Yeming wang Li Guo Lili Ren Xiaoyan Deng Haibo Li Jiankang Zhao yulin Zhang Hui Li Binghuai Lu Chaolin Huang Bin Cao Department of Pulmonary and Critical Care Medicine Center of Respiratory MedicineNational Clinical Research Center for Respiratory DiseasesChina-Japan FriendshipHospitalBeijing100029China National Center for Respiratory Medicine Beijing100029China institute of Respiratory Medicine Chinese Academy of Medical SciencesBeijing100029China Department of Pulmonary and Critical Care Medicine Capital Medical UniversityBeijing100069China Tsinghua University-Peking University Joint Center for Life sciences Beijing100029China NHC Key Laboratory of Systems Biology of Pathogens and Christophe M erieux Laboratory Institute of Pathogen BiologyChinese Academy of Medical Sciences&PekingUnion Medical CollegeBeijing100176China Jin Yin-tan Hospital Wuhan430013Hubei ProvinceChina

Little is known about Subgenomic RNA(sgRNA)dynamics in patients with Coronavirus diseases 2.19(COVID-19).We collected 147 throat swabs,74 gut swabs and 46 plasma samples from 117 COVID-19 patients recruited in the LOTUS china trial(ChiCTR2.0002.308)and compared E and orf7a sgRNA load in patients with different illness duration,outcome,and *** sgRNAs were detected in all the three types of samples,with longest duration of 2.,13,and 17 days for E sgRNA,and 32.2.,and 17 days for orf7a sgRNA in throat,gut,and plasma,respectively.A total of 95%(57/60)of patients had no E sgRNA detected after 10 days post treatment,though 86%of them were still E RNA *** correlation on titer was observed between sgRNA encoding E and orf7a *** showed similar variation in the standard care and Lopinavir-Ritonavir *** with diabetes and heart diseases showed higher pharyngeal E sgRNA at the first day(P=0.016 and 0.013,respectively)but no difference at five days after treatment,compared with patients without such *** with hypertension and cerebrovascular diseases showed no difference in the pharyngeal sgRNA levels at both one and five days after treatment,compared with patients without these two commodities.E sgRNA levels in the initial infection showed no correlation with the serum antibody against spike,nucleoprotein,and receptor binding domains at ten days *** lasted a long period in COVID-19 patients and might have little effect on humoral response.

关键词： SARS-CoV-2 Subgenomic RNA(sgRNA) Viral load Antibody

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New Discovery of the 341 Ma Gabbro at Xiongcun District in the Southern Margin of Lhasa Terrane, Tibet

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Acta Geologica Sinica(English Edition) 2018年第1期92卷 420-421页

作者： LANG Xinghai LIU Dong DENG yulin TANG Juxing XIE Fuwei YANG Zongyao CUI Zhiwei wang Xuhui LI Zhijun ZHANG Zhong ZHANG Jinshu HUANG Yong College of Earth sciences and MLR Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation Chengdu University of Technology Chengdu 610059 Sichuan China College of Management Science Chengdu University of Technology Chengdu 610059 Sichuan China institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China Faculty of Geosciences and Environmental Engineering Southwest Jiaotong University Chengdu 611756 Sichuan China Tibet Tianyuan Minerals Exploration Co. Ltd Rikaze 857000 Tibet China College of Engineering Tibet University Lhasa 850012 Tibet China Chengdu Center of china Geological Survey Chengdu 610081 Sichuan China

Objective Lhasa terrane has recorded the geologic history conceming the formation and evolution of Paleo-Tethys and the intra-continental convergence in Qinghai-Tibet Plateau （Yin and Harrison, 2.00）. Previous investigations have focused on the initial timing of the India-Asia collision and the Cretaceous-Cenozoic magmatism and sedimentation （wang Tianyang et al., 2.17）, however, there are only few studies concerning the Paleozoic evolution in Lhasa terrane. This paper mainly reports a new discovery of 341 Ma gabbro, which is located in the Xiongcun copper-gold district at the southern margin of Lhasa terrane, Tibet. As an important magmatic record during the Paleozoic evolution process of Lhasa terrane, the Early Carboniferous Xiongcun gabbro will provide new constraints for the tectonic evolution of Paleo-Tethys Ocean in the Late Devonian to Early Carboniferous.

关键词： Ma Gabbro Tibet Xiongcun District

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Observation of Mott instability at the valence transition of f-electron system

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National Science Review 2023年第6期10卷 183-190页

作者： Haifeng Yang Jingjing Gao Yingying Cao Yuanji Xu Aiji Liang Xiang Xu Yujie Chen Shuai Liu Kui Huang Lixuan Xu Chengwei wang Shengtao Cui Meixiao wang Lexian Yang Xuan Luo Yuping Sun Yi-feng Yang Zhongkai Liu {2. Chen School of Physical Science and Technology Shanghai Tech University Key Laboratory of Materials Physics Institute of Solid State Physics Chinese Academy of Sciences Science Island Branch of Graduate School University of Science and Technology of China beijing National Laboratory for Condensed Matter Physics and institute of Physics Chinese Academy of Sciences University of chinese Academy of sciences Shanghai Tech Laboratory for Topological Physics State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics Tsinghua University State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology (SIMIT) Chinese Academy of Sciences High Magnetic Field Laboratory Chinese Academy of Sciences Collaborative Innovation Center of Microstructures Nanjing University Songshan Lake Materials Laboratory Department of Physics University of Oxford

Mott physics plays a critical role in materials with strong ele ctronic *** insulator-to-metal transition can be driven by chemical doping,external pressure,temperature and gate voltage,which is often seen in transition metal oxides with 3d electrons near the Fermi energy(*** superconductor).In4f-electron systems,however,the insulator-to-metal transition is mostly driven by Kondo hybridization and the Mott physics has rarely been explored in ***,by combining the angle-resolved photo emission spectroscopy and strongly correlated band structure calculations,we show that an unusual Mott instability exists in YbInCu4accompanying its mysterious first-order valence *** contrasts with the prevalent Kondo picture and demonstrates that YbInCu4is a unique platform to explore the Mott physics in Kondo lattice *** work provides important insight for the understanding and manipulation of correlated quantum phenomena in the f-electron system.

关键词： valence transition orbital-selectiveMott transition Kondo coupling heavy fermions strong correlations ARPES DMFT

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1967~2.33 nm波段硅基可调谐外腔半导体激光器设计与仿真

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中国激光 2024年第6期51卷 74-83页

作者：万浩然杨禹霖乔忠良李翔 Jia Xu Brian Sia 余文军翁登群李再金李林陈浩赵志斌薄报学高欣曲轶刘重阳汪宏张宇牛智川海南师范大学物理与电子工程学院海南省激光技术与光电子功能材料重点实验室半导体激光海南省国际联合研究中心海南海口571158 新加坡南洋理工大学电气与电子工程学院新加坡639798 新加坡南洋理工大学淡马锡实验室新加坡637553 中国科学院半导体研究所半导体超晶格国家重点实验室北京100083 长春理工大学高功率半导体激光器国家重点实验室吉林长春130022

2.m波长附近可调谐半导体激光器在分子光谱学和光通信领域中有广阔的应用前景。基于绝缘体上硅(SOI)平台,对2.m波长附近可调谐半导体激光器的外腔部分进行了设计优化。分析了不同尺寸光波导的模式损耗特性、单个微环谐振腔受总线波导... 详细信息

2.m波长附近可调谐半导体激光器在分子光谱学和光通信领域中有广阔的应用前景。基于绝缘体上硅(SOI)平台,对2.m波长附近可调谐半导体激光器的外腔部分进行了设计优化。分析了不同尺寸光波导的模式损耗特性、单个微环谐振腔受总线波导耦合间距的作用以及总线波导光反馈终端对外腔半导体激光器性能的影响。并提出了一种具有高工艺兼容度的多模环形光波导光反馈结构。所设计的可调谐半导体激光器硅基外腔可通过环形波导上的镍铬合金微加热器进行0.1 nm/K的高精度调谐,对单个微加热器施加3.2.V电压时,调谐范围可达66 nm(1967~2.33 nm)。

关键词：硅光集成可调谐外腔半导体激光器环形谐振腔光波导终端

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荒漠化重建地区土壤有机碳动态研究

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水土保持学报 2004年第3期18卷 74-77,89页

作者：程淑兰欧阳华牛海山王琳田玉强张锋中国科学院地理科学与资源研究所北京100101 中国科学院研究生院北京100039

土壤有机碳(Soilorganiccarbon,SOC)是反映土地荒漠化的重要指标。本研究以陕西省榆林市为例,开展小区域沙漠化重建地区SOC动态的实证研究。SOC数据来源于1982.土壤普查和2.03年重复采样,土样的采集、分析和统计方法分别为土钻取土法... 详细信息

土壤有机碳(Soilorganiccarbon,SOC)是反映土地荒漠化的重要指标。本研究以陕西省榆林市为例,开展小区域沙漠化重建地区SOC动态的实证研究。SOC数据来源于1982.土壤普查和2.03年重复采样,土样的采集、分析和统计方法分别为土钻取土法、重铬酸钾氧化法、吸管法和面积加权法。研究结果表明:SOC含量与粗砂粒显著负相关(R=-0.50,a=0.01),与粘粒显著正相关(R=-0.45,a=0.05),2.年间土壤颗粒细化趋势比较明显;2.年间原始剖面、1m深和耕层SOC含量、密度和储量都有不同程度的增加,其中对人类活动最敏感的耕层土壤变化最显著,SOC含量、密度和储量分别增加了0.55g/kg,0.15kg/m2.10.07GgC。该研究结果表明防风固沙、可持续性农耕等措施会卓有成效地促进土地沙漠化的恢复和重建。

关键词：荒漠化重建地区土壤有机碳动态分析

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Soil bacterial communities interact with silicon fraction transformation and promote rice yield after long-term straw return

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Soil Ecology Letters 2021年第4期3卷 395-408页

作者： Alin Song Zimin Li yulin Liao Yongchao Liang Enzhao wang Sai wang Xu Li Jingjing Bi Zhiyuan Si Yanhong Lu Jun Nie Fenliang Fan Key Laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Earth and Life institute Soil SciencesUniversitécatholique de Louvain(UCLouvain)Croix du Sud 2/L7.05.101348 Louvain‐la‐NeuveBelgium Soil and Fertilizer institute of Hunan province Hunan Academy of Agricultural SciencesChangsha 410125China Ministry of Education Key Laboratory of Environment Remediation and Ecological Health College of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China

Returning crop straw into the soil is an important practice to balance biogenic and bioavailable silicon(Si)pool in paddy,which is crucial for the healthy growth of ***,owing to little knowledge about soil microbial communities responsible for straw degradation,how straw return affects Si bioavailability,its uptake,and rice yield remains ***,we investigate the change of soil Si fractions and microbial community in a 39-year-old paddy field amended by a long-term straw *** show that rice straw return significantly increased soil bioavailable Si and rice yield from 2..9%to 61.6%and from 14.5%to 2..6%,respectively,when compared to NPK fertilization *** return significantly altered soil microbial community *** was positively and significantly related to amorphous Si,while Rokubacteria at phylum level,Deltaproteobacteria,and Holophagae at class level was negatively and significantly related to organic matter adsorbed and Fe/Mn-oxide-combined Si in *** analysis of their correlations further demonstrated that Si status significantly explained 12.of soil bacterial community *** findings suggest that soil bacteria community and diversity interact with Si mobility by altering its transformation,thus resulting in the balance of various nutrient sources to drive biological Si cycle in agroecosystem.

关键词： Bacterial community Long-term Silicon fractions Straw returning Silicon cycle

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Transmission of Carbapenem Resistance Between Human and Animal NDM-Positive Escherichia coli Strains

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Engineering 2022年第8期8卷 24-33页

作者： Yingbo Shen Fupin Hu Yongqiang wang Dandan Yin Lu Yang Yiqiang Chen Chunyan Xu Jiyun Li Junyao Jiang Xueyang wang {2. Fu Dongyan Shao Dejun Liu Tengfei Ma Chang Cai Zhangqi Shen Shaolin wang Juan Li Rong Zhang Yuebin Ke Congming Wu Jianzhong Shen Timothy R.Walsh Yang wang beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety College of Veterinary MedicineChina Agricultural UniversityBeijing 100193China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China institute of Antibiotics&Key Laboratory of Clinical Pharmacology of Antibiotics(MoH) Huashan HospitalFudan UniversityShanghai 200040China Department of Preventive Veterinary Medicine College of Veterinary MedicineChina Agricultural UniversityBeijing 100193China State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China College of Animal Science and Technology College of Veterinary MedicineZhejiang A and F UniversityHangzhou 311300China State Key Laboratory for Infectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseaseNational Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and Prevention(CDC)Beijing 102206China The Second Affiliated Hospital of Zhejiang University Zhejiang UniversityHangzhou 310009China Key Laboratory of Genetics&Molecular Medicine of Shenzhen Shenzhen Center for Disease Control and PreventionShenzhen 518055China Department of Zoology University of OxfordOxford OX13SZUK

Although carbapenem use is prohibited in animals in china,carbapenem-resistant Escherichia coli(CREC),especially New Delhi metallo-β-lactamase(NDM)-producing strains,are widely prevalent in foodproducing *** present,the impact of livestock-associated CREC strains on human populations at the national level is ***,we conduct a retrospective cross-sectional study to investigate the prevalence of CREC from clinical settings across 2. chinese provinces or municipalities and analyze anthropogenic factors associated with their *** also ascertain the blaNDMand blaKPCabundance among pig and chicken farms and present a detailed genomic framework for CREC of animal and human ***,631/2.799(2.1%)clinical Escherichia coli(***)isolates were identified as *** analysis revealed that being male,an age below 1,an age between 13 and 18,provinces with greater chicken production,and provinces with higher pig production were associated with higher odds of CREC *** general,73.8%(n=45/61)of pig farms and 62.2.(n=2./45)of chicken farms had a blaNDMabundance of 1×10^(-5)to 1×10^(-3)and 1×10^(-3)to 1×10^(-2.,*** all the chinese NDM-positive ***(n=463)available at the National Center for Biotechnology Information(NCBI),the genomic analysis revealed that blaNDM-5and Inc X3 were the predominant carbapenemase gene-plasmid combination,while a highly homogeneous relationship between NDM-positive isolates from humans and animals was demonstrated at the plasmid and core genome *** the findings suggest frequent CREC transmission between humans and animals,indicating that further discussions on the use of antibiotics in animals and humans are needed,both in china and across the globe.

关键词： Carbapenem resistance Escherichia coli blaNDM-5 One Health Antimicrobial resistance transmission

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Haplotype-resolved and chromosome-level genome assembly of Colorado potato beetle

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Journal of Genetics and Genomics 2023年第7期50卷 532-535页

作者： Ziqi Ye Ruirui Lu Chao Li Doudou Yang Zhuozhen Zeng Weichao Lin Jie Cheng Zhongmin Yang Li wang yulin Gao Sanwen Huang Xingtan Zhang Suhua Li Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsChinese Academy of Agricultural SciencesShenzhenGuangdong 518000China Key Laboratory of Prevention and Control of Invasive Alien Species in Agriculture&Forestry of the North-western Desert Oasis Ministry of Agriculture and Rural AffairsCollege of AgronomyXinjiang Agricultural UniversityUrumqiXinjiang Uygur Autonomous Region 830052China School of Life sciences Henan UniversityKaifengHenan 475004China Shenzhen Research institute of Henan University ShenzhenGuangdong 518000China College of Horticulture Xinjiang Agricultural UniversityUrumuqiXinjiang Uygur Autonomous Region 830052China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China chinese Academy of Tropical Agricultural sciences HaikouHainan 571101China

As the most important non-cereal food crop,potatoes are a staple food for 1.3 billion people(Stokstad,2.19).However,these cultivated potatoes are challenged with multiple biotic stresses(i.e.,pathogens and pests),some of which can evade host resistance,leading to a serious dampening of potato *** of these pests is the Colorado potato beetle(hereafter referred to as CPB,Leptinotarsa decemlineata Say).CPB is a member of the order Coleoptera,and originated in the southwestern United States and Mexico(Alyokhin et al.,2.08).

关键词： originated hereafter

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