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Temporal and spatial co.parisons of angiosperm diversity between eastern Asia and North America

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National Science Review 2022年第6期9卷 38-42页

作者： Haihua Hu Jianfei Ye Bing Liu Lingfeng Mao Stephen A.Smith Russell L.Barrett Pamela S.Soltis Douglas E.Soltis Zhiduan Chen Limin Lu State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences sino-Africa Joint Research Center Chinese Academy of Sciences Beijing Botanical Garden Institute of BotanyChinese Academy of Sciences co.Innovation Center for Sustainable Forestry in Southern China College of Biology and the Environment Nanjing Forestry University Department of Eco.ogy and Evolutionary Biology University of Michigan National Herbarium of New South Wales Royal Botanic Gardens and Domain Trust Florida Museum of Natural History University of Florida Department of Biology University of Florida

co.parative approaches that examine floras with similar environments, but different diversity patterns, provide good opportunities to elucidate how uneven distributions of biodiversity were assembled. Eastern Asia(EA) and North America north of Mexico.NA; see definitions of EA and NA in Fig. S1 A) share similar geographical environments with co.parable latitude, land area and climate,

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Novel insights into the dehalogenation mechanism and eco.oxicity assessment of 6:2 Cl-PFESA from density functional theory calculations

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Emerging co.taminants 2024年第2期10卷 115-122页

作者： Youxin Xu Chenxi Zhang Zhe Wang Bing Chen Xiaomin Sun Shuguang Wang Huifang Tian Institute of Environmental Biotechnology and Functional Materials School of Environmental Science and EngineeringShandong UniversityQingdaoShandong266237China Shandong Engineering Laboratory for Clean Utilization of Chemical resources Weifang University of Science and TechnologyWeifang262700China Northern Region Persistent Organic Pollution co.trol(NRPOP)Laboratory Faculty of Engineering and Applied ScienceMemorial University of NewfoundlandSt.John'sNLA1B 3X5Canada Environment Research Institute Shandong UniversityQingdaoShandong266237China sino-French Research Institute for Eco.ogy and Environment(ISFREE) Shandong UniversityQingdaoShandong266237China

The electroplating industry is the main source of 6:2 chlorinated polyfluorinated ether sulfonate(6:2 Cl-PFESA)pollution,which presents risks to human health and the *** is therefore crucial to develop effective 6:2 Cl-PFESA degradation *** oxidation is a potential treatment method for 6:2 Cl-PFESA due to its outstanding oxidative degradability following the generation of the sulfate radical(SO_(4)^(•−))and hydroxyl radical(•OH).It has proven difficult to acquire a full understanding of the reaction mechanism and formation of intermediate(IM)products through co.ventional experimental studies because they are co.tly and ***,a theoretical analysis method based on density functional theory(DFT)calculations was *** DFT results showed that electron transfer for the degradation of 6:2 Cl-PFESA co.ld be initiated by the protonated sulfate radical(HSO_(4)•,ΔG≠SET=9.16 kcal/mol),rather than SO4•−(ΔG≠SET=41.60 kcal/mol).After desulfonation,the reaction underwent stepwise decarboxylation cycles under the action of•OH,leading to the elimination of the CF_(2) units until there was co.plete mineralization into HCl,HF,and co.(2).Furthermore,the IMs and the end products of 6:2 Cl-PFESA were evaluated using Eco.AR and TEST *** low bioaccumulation of the short-chain IMs meant that they co.ld be co.sidered safe in terms of eco.oxicity and health *** research determined the theoretical and mechanistic basis of the effects of persulfate in the treatment of water co.taining 6:2 Cl-PFESA,and its structural analogues.

关键词： Active free radicals Dehalogenation reaction Degradation mechanisms Theoretical prediction Eco.oxicity assessment

New understanding of the response of permafrost carbon cycling to climate warming

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Science Bulletin 2022年第13期67卷 1322-1325页

作者： Jinzhi Ding Tao Wang Yuyang Wang Fahu Chen State Key Laboratory of Tibetan Plateau Earth System Resources and Environment(TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100871China Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental ScienceLanzhou UniversityLanzhou 730000China

Carbon cycling in terrestrial eco.ystems is an important factor that affects the level and accumulation rate of global atmospheric greenhouse gases and determines the stability of the global *** 2010 to 2019,31%of co.(2) emissions caused by human activities were absorbed by vegetation in terrestrial eco.ystems and 23%by the ocean,while the remaining 46%accumulated in the ***,as the climate co.tinues to warm。

关键词： terrestrial climate warming

An EMS mutant library for cucumber

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Journal of Integrative Agriculture 2018年第7期17卷 1612-1619页

作者： CHEN Chen CUI Qing-zhi HUANG San-wen WANG Shen-hao LIU Xiao-hong LU Xiang-yang CHEN Hui-ming TIAN Yun co.lege of Bioscience and Biotechnology Hunan Agricultural UniversityChangsha 410128P.R.China Hunan Vegetable Research Institute Hunan Academy of Agricultural SciencesChangsha 410125P.R.China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture/sino-Dutch Joint Laboratory of Horticultural Genomics Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081P.R.China Key Laboratory for Agricultural Biochemistry and Biotransformation of Hunan Provincial University Changsha 410128P.R.China Hunan co.Innovation Center for Utilization of Botanical Functional Ingredients Changsha 410128P.R.China

Cucumber is an important vegetable crop and a model crop for the study of sex expression in plants. However, the genomic resources and tools for functional genomics studies in cucumber are still limited. In this paper, we co.ducted ethyl methyl sulfone（EMS） mutagenesis in the northern China eco.ype cucumber inbred line 406 to co.struct a mutant library. We optimized the co.ditions of EMS mutagenesis on inbred line 406 which included treatment of seeds at 1.5% EMS for 12h. We obtained a number of mutant lines showing inheritable morphological changes in plant architecture, leaves, floral organs, fruits and other traits through M1, M2 and M3 generations. The F2 segregating populations were co.structed and *** found that a short fruit mutant and a yellow-green fruit peel mutant were both under the co.trol of a single recessive gene, respectively. These results provide valuable germplasm resources for the improvement of cucumber genetics and functional genomic research.

关键词： cucumber EMS mutant library traits

Genomes reveal selective sweeps in kiang and donkey for high-altitude adaptation

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Zoological Research 2021年第4期42卷 450-460页

作者： Lin Zeng He-Qun Liu Xiao-Long Tu Chang-Mian Ji Xiao Gou Ali Esmailizadeh Sheng Wang Ming-Shan Wang Ming-Cheng Wang Xiao-Long Li Hadi Charati Adeniyi CAdeola Rahamon Akinyele Moshood Adedokun Olatunbosun Oladipo Sunday Charles Olaogun Oscar JSanke Mangbon Godwin F Sheila Cecily Ommeh Bernard Agwanda Jacqueline Kasiiti Lichoti Jian-Lin Han Hong-Kun Zheng Chang-Fa Wang Ya-Ping Zhang Laurent A.F.Frantz Dong-Dong Wu State Key Laboratory of Genetic resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions Institute of Tropical Bioscience and BiotechnologyChinese Academy of Tropical Agricultural SciencesHaikouHainan 571101China co.lege of Animal Science and Technology Yunnan Agricultural UniversityKunmingYunnan 650201China Department of Animal Science Faculty of AgricultureShahid Bahonar University of KermanKermanPB 76169-133Iran Kunming co.lege of Life Science University of Chinese Academy of SciencesKunmingYunnan 650204China sino-Africa Joint Research Center Chinese Academy of SciencesKunmingYunnan 650223China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingYunnan 650223China Institute of Three-River-Source National Park Chinese Academy of SciencesXiningQinghai 810008China School of Biological and Chemical Sciences Queen Mary University of LondonLondon E14NSUK Department of Genetics Albert Einstein College of MedicineBronxNew YorkNY 10461USA Annoroad Gene Tech.(Beijing)co. Ltd.Beijing 100176China State Key Laboratory of Genetic resources and Evolution Yunnan Laboratory of Molecular Biology of Domestic AnimalsGermplasm Bank of Wild SpeciesKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Department of Veterinary Medicine University of IbadanIbadan 200284Nigeria Federal co.lege of Animal Health and Production Technology Moor-PlantationIbadan 234102Nigeria Taraba State Ministry of Agriculture and Natural resources Jalingo 660221Nigeria Division of Veterinary Office Serti 663101Nigeria Institute For Biotechnology Research Jomo Kenyatta University of Agriculture and Technology Nairobi 62000-00200Kenya Department of Zoology National Museums of KenyaNairobi 40658-00100Kenya State Department of Livestock Ministry of AgricultureLivestockFisheries and IrrigationN

Over the last several hundred years,donkeys have adapted to high-altitude co.ditions on the Tibetan ***,the kiang,a closely related equid species,also inhabits this *** reports have demonstrated the importance of specific genes and adaptive introgression in divergent lineages for adaptation to hypoxic co.ditions on the Tibetan ***,we assessed whether donkeys and kiangs adapted to the Tibetan Plateau via the same or different biological pathways and whether adaptive introgression has *** assembled a de novo genome from a kiang individual and analyzed the genomes of five kiangs and 93 donkeys(including 24 from the Tibetan Plateau).Our analyses suggested the existence of a strong hard selective sweep at the EPAS1 locus in *** Tibetan donkeys,however,another gene,i.e.,EGLN1,was likely involved in their adaptation to high *** addition,admixture analysis found no evidence for interspecific gene flow between kiangs and Tibetan *** findings indicate that despite the short evolutionary time scale since the arrival of donkeys on the Tibetan Plateau,as well as the existence of a closely related species already adapted to hypoxia,Tibetan donkeys did not acquire adaptation via admixture but instead evolved adaptations via a different biological pathway.

关键词： Kiang Donkey High altitude Adaptation Selection

Altered trends in carbon uptake in China's terrestrial eco.ystems under the enhanced summer monsoon and warming hiatus

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National Science Review 2019年第3期6卷 505-514页

作者： Honglin He Shaoqiang Wang Li Zhang Junbang Wang Xiaoli Ren Lei Zhou Shilong Piao Hao Yan Weimin Ju Fengxue Gu Shiyong Yu Yuanhe Yang Miaomiao Wang Zhongen Niu Rong Ge Huimin Yan Mei Huang Guoyi Zhou Yongfei Bai Zongqiang Xie Zhiyao Tang Bingfang Wu Leiming Zhang Nianpeng He Qiufeng Wang Guirui Yu Synthesis Research Center of China's Eco.ystem Research Network Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences co.lege of resources and Environment University of Chinese Academy of Sciences sino-French Institute for Earth System Science College of Urban and Environment Sciences Peking University Key Laboratory of Alpine Eco.ogy and Biodiversity Institute of Tibetan Plateau Research CAS Center for Excellence in Tibetan Plateau Earth Science Chinese Academy of Sciences National Meteorological Center China Meteorological Administration International Institute for Earth System Science and Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Nanjing University Key Laboratory of Dryland Agriculture MOA Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences School of Geography Geomatics and Planning Jiangsu Normal University State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory of Vegetation Restoration and Management of Degraded Eco.ystems South China Botanical Garden Chinese Academy of Sciences Department of Eco.ogy College of Urban and Environmental Science Key Laboratory for Earth Surface Processes of the Ministry of Education Peking University Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences

The carbon budgets in terrestrial eco.ystems in China are strongly co.pled with climate changes. Over the past decade, China has experienced dramatic climate changes characterized by enhanced summer monsoon and decelerated warming. However, the changes in the trends of terrestrial net eco.ystem production(NEP) in China under climate changes are not well documented. Here, we used three eco.ystem models to simulate the spatiotemporal variations in China’s NEP during 1982–2010 and quantify the co.tribution of the strengthened summer monsoon and warming hiatus to the NEP variations in four distinct climatic regions of the co.ntry. Our results revealed a decadal-scale shift in NEP from a downtrend of–5.95 TgC/yr~2(reduced sink) during 1982–2000 to an uptrend of 14.22 TgC/yr~2(enhanced sink) during 2000–10. This shift was essentially induced by the strengthened summer monsoon, which stimulated carbon uptake, and the warming hiatus, which lessened the decrease in the NEP trend. co.pared to the co.tribution of 56.3% by the climate effect, atmospheric co.co.centration and nitrogen deposition had relatively small co.tributions(8.6 and 11.3%, respectively) to the shift. In co.clusion, within the co.text of the global-warming hiatus, the strengthening of the summer monsoon is a critical climate factor that enhances carbon uptake in China due to the asymmetric response of photosynthesis and respiration. Our study not only revealed the shift in eco.ystem carbon sequestration in China in recent decades, but also provides some insight for understanding eco.ystem carbon dynamics in other monsoonal areas.

关键词： climate change Asian summer monsoon warming hiatus biogeochemical modeling eco.ystem carbon dynamics

High nitrogen fertilizer input enhanced the microbial network co.plexity in the paddy soil

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Soil Eco.ogy Letters 2024年第2期6卷 97-109页

作者： Yanan Chen Yan Li Tianyi Qiu Haoran He Ji Liu Chengjiao Duan Yongxing Cui Min Huang Chunyan Wu Linchuan Fang The Research Center of Soil and Water co.servation and Eco.ogical Environment Chinese Academy of Sciences and Ministry of EducationYangling712100China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Soil and Water Conservation CAS and MWRYangling712100China University of Chinese Academy of Sciences Beijing100049China Institute of Environment Resource and Soil Fertilizer Zhejiang Academy of Agricultural SciencesHangzhou310021China co.lege of Natural resources and Environment Northwest A&F UniversityYangling712100China Hubei Province Key Laboratory for Geographical Process Analysis and Simulation Central China Normal UniversityWuhan430079China Department of Eco.ydrology Leibniz Institute of Freshwater Ecology and Inland FisheriesBerlin12587Germany sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing100871China co.lege of resources and Environmental Engineering Wuhan University of TechnologyWuhan430070China CAS Center for Excellence in Quaternary Science and Global Change Xi’an710061China

N fertilizer altered bacterial co.munity co.positions by changing soil nutrients.•Bacterial ammonia oxidation became predominated with the increasing N rate.•Excessive N input caused the information of a more co.plex microbial network.•Intensified microbial co.petition by excessive N was due to negative link ***(N)fertilization drives the structure and function of soil microbial co.munities,which are crucial for regulating soil biogeochemical cycling and maintaining eco.ystem *** the N fertilizer effects on soil microbial co.position and diversity have been widely investigated,it is generally overlooked that eco.ystem processes are carried out via co.plex associations among microbiome ***,we examined the effects of five N fertilization levels(0,135,180,225,and 360 kg N ha−1)on microbial co.occurrence networks and key functional taxa such as ammonia-oxidizers in paddy *** results showed that N addition altered microbial co.munity co.position,which were positively related to soil total N and available phosphorus(P)*** abundance of ammonia-oxidizing archaea(AOA)significantly decreased after N addition,whereas ammonia-oxidizing bacteria(AOB)increased in N360 *** with low-N group(N0 and N135),the high-N group(N225 and N360)shaped more co.plex microbial webs and thus improved the stability of the microbial *** least squares path modeling further revealed that N fertilizer had a higher effect on microbial network co.plexity in the high-N group(0.83)than the low-N group(0.49).Although there were more positive links across all microbial networks,the proportion of negative links significantly increased in the high-N network,suggesting that excess N addition aggravated the co.petition among microbial *** these interactions between microbial co.munities and N fertilization advances our understanding of biogeochemical processes in paddy soils and their effects on nutrient supply to

关键词： nitrogen fertilizer paddy soil co.occurrence network microbial interaction

Design and application of co.e mineral spectrometer

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Chinese Optics Letters 2014年第8期12卷 88-92页

作者：修连存陈春霞郑志忠殷靓俞正奎黄俊杰黄宾张秋宁修小旭高扬 Nanjing Center China Geological Survey Key Laboratory of R&D of Spectrum Detection Geological Instrument China Geological Survey Jiangsu Provincial Key Laboratory of Spectral Imaging and Intelligent Sensing Nanjing Zhongdi Instrument co. Ltd

co.e mineral spectrometer is one of the advanced and important tools for co.e digitalization, altered mineral mapping, ore deposits exploring, and ore-searching in surrounding mine and beneficiation process. In this letter, a new co.e mineral spectrometer （CMS 350） is designed and developed. The basic principle, structural design, function module, key co.ponents, data acquisition, and processing methods of CMS 350 are introduced. In addition, some applications and results of CMS 350 in zijin Mining are presented to validate the performance of CMS 350.

关键词： Data acquisition Ore deposits Spectrometers Structural design

Effects of dissolved oxygen and nutrients from the Kuroshio on hypoxia off the Changjiang River estuary

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Journal of Oceanology and Limnology 2022年第2期40卷 515-529页

作者： Di TIAN Feng ZHOU Wenyan ZHANG Han ZHANG Xiao MA Xinyu GUO State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Observation and Research Station of Yangtze River Delta Marine Eco.ystems Ministry of Natural ResourcesZhoushan 316022China Ocean co.lege Zhejiang UniversityZhoushan 316021China Institute of co.stal Research Helmholtz-Zentrum GeesthachtGeesthacht 21502Germany Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Center for Marine Environmental Study Ehime UniversityMatsuyama 790-8577Japan

The intrusion of the Kuroshio into the East China Sea(ECS)aff ects the development of hypoxia off the Changjiang(Yangtze)River estuary;however,quantitative analysis of its impacts is *** this study,the Regional Ocean Modeling Systems(ROMS)model co.pled with the Carbon,Silicate and Nitrogen Eco.ystem(co.iNE)model was used to investigate the relative importance of dissolved oxygen(DO)and diff erent nutrients(silicate,nitrate,and phosphate)in the Kuroshio on hypoxia in the *** show that changes in DO co.centrations in the Kuroshio modify the distribution and intensity of hypoxia through direct onshore transport by hydrodynamic *** increase in Kuroshio DO co.centration by 25%or 50%would result in a decrease of the maximum hypoxia extent(MHE)in the ECS by 76%or 86%,respectively,while a 25%decrease in Kuroshio DO would increase the MHE by up to 219%.The co.tribution of DO in the Taiwan Strait is almost *** co.trast to Kuroshio DO,nutrients aff ect hypoxia in the ECS through onshore transport by hydrodynamic and biochemical *** in phosphate and nitrate co.centrations by 25%in the Kuroshio would change the MHE by up to 30%and 18%,respectively,acco.panied by apparent changes in surface chlorophyll-a *** eff ect of silicate on hypoxia is negligible because a 25%change in silicate co.centrations in the Kuroshio would result in less than 1%change in the *** results reveal a hierarchical rank of importance for environmental variables in the Kuroshio(i.e.,DO>phosphate>nitrate>silicate)in modifying the development of hypoxia in the ECS.

关键词： hypoxia Kuroshio Changjiang River estuary East China Sea dissolved oxygen nutrient