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Two gene clusters and their positive regulator SlMYB13 that have undergone domestication-associated negative selection control phenolamide accumulation and drought tolerance in tomato

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Molecular Plant 2024年第4期17卷 579-597页

作者： Peng Cao Jun Yang Linghao Xia Zhonghui Zhang Zeyong Wu yingchen hao Penghui Liu Chao Wang Chun Li Jie Yang Jun Lai Xianggui Li Meng Deng Shouchuang Wang School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan UniversitySanya 572025China College of Tropical Agriculture and Forestry Hainan UniversityHaikou 572208China Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture Hainan UniversityHaikou 572208China

Among plant metabolites,phenolamides,which are conjugates of hydroxycinnamic acid derivatives and polyamines,play important roles in plant adaptation to abiotic and biotic ***,the molecular mechanisms underlying phenolamide metabolism and regulation as well as the effects of domestication and breeding on phenolamide diversity in tomato remain largely *** this study,we performed a metabolite-based genome-wide association study and identified two biosynthetic gene clusters(BGC7 and BGC11)containing 12 genes involved in phenolamide metabolism,including four biosynthesis genes(two 4CL genes,one C3H gene,and one CPA gene),seven decoration genes(five AT genes and two UGT genes),and one transport protein gene(DTX29).Using gene co-expression network analysis we further discovered that SlMYB13 positively regulates the expression of two gene clusters,thereby promoting phenolamide *** and physiological analyses showed that BGC7,BGC11 and SlMYB13 enhance drought tolerance by enhancing scavenging of reactive oxygen species and increasing abscisic acid content in *** variation analysis suggested that BGC7,BGC11 and SlMYB13 were negatively selected during tomato domestication and improvement,leading to reduced phenolamide content and drought tolerance of cultivated ***,our study discovers a key mechanism of phenolamide biosynthesis and regulation in tomato and reveals that crop domestication and improvement shapes metabolic diversity to affect plant environmental adaptation.

关键词： tomato phenolamides gene cluster drought tolerance natural variation evolution

Elucidation of the melitidin biosynthesis pathway in pummelo

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Journal of Integrative Plant Biology 2023年第11期65卷 2505-2518页

作者： Shuangqian Shen Shouchuang Wang Chenkun Yang Chao Wang Qianqian Zhou Shen Zhou Ran Zhang Yufei Li Zixuan Wang Liupan Dai Wenjv Peng yingchen hao hao Guo Guangping Cao Xianqing Liu Fan Yao Qiang Xu Alisdair RFernie Jie Luo Sanya Nanfan Research Institute of Hainan University Hainan UniversitySanya 572025China National Key Laboratory of Crop Genetic Improvement National Center of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory College of Life Science and TechnologyCollege of Biomedicine and HealthHuazhong Agricultural UniversityWuhan 430070China Key Laboratory of Horticultural Plant Biology of Ministry of Education Huazhong Agricultural UniversityWuhan 430070China Max Planck Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany Centre of Plant Systems Biology and Biotechnology Plovdiv 4000Bulgaria Yazhouwan National Laboratory Sanya 572025China

Specialized plant metabolism is a rich resource of compounds for drug *** acylated flavonoid glycoside melitidin is being developed as an anti-cholesterol statin drug candidate,but its biosynthetic route in plants has not yet been fully ***,we describe the gene discovery and functional characterization of a new flavonoid gene cluster(UDP-glucuronosyltransferases(Cg UGTs),1,2rhamnosyltransferase(Cg1,2Rha T),acyltransferases(Cg ATs))that is responsible for melitidin biosynthesis in pummelo(Citrus grandis(L.)Osbeck).Population variation analysis indicated that the tailoring of acyltransferases,specific for bitter substrates,mainly determine the natural abundance of ***,3-hydroxy-3-methylglutaryl-Co A reductase enzyme inhibition assays showed that the product from this metabolic gene cluster,melitidin,may be an effective anti-cholesterol statin drug ***-expression of these clustered genes in Nicotiana benthamiana resulted in the formation of melitidin,demonstrating the potential for metabolic engineering of melitidin in a heterologous plant *** study establishes a biosynthetic pathway for melitidin,which provides genetic resources for the breeding and genetic improvement of pummelo aimed at fortifying the content of biologically active metabolites.

关键词： bioactive metabolites biosynthetic pathway flavonoids melitidin natural variation

植物蛋白激酶GCN2结构、功能及调控研究进展

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中国农业科技导报 2019年第3期21卷 22-27页

作者：郭豪龙月赵棋李宁郝英辰张松杰张松涛河南农业大学烟草学院国家烟草栽培生理生化研究基地烟草行业烟草栽培重点实验室郑州450002

植物对于生物和非生物胁迫的应答效率直接影响植物的生长发育。蛋白的磷酸化和去磷酸化修饰在植物环境胁迫应答中起到了重要作用。在真核生物蛋白翻译起始过程中,蛋白激酶GCN2能通过磷酸化真核翻译起始因子e IF2α来调控蛋白的翻译,进... 详细信息

植物对于生物和非生物胁迫的应答效率直接影响植物的生长发育。蛋白的磷酸化和去磷酸化修饰在植物环境胁迫应答中起到了重要作用。在真核生物蛋白翻译起始过程中,蛋白激酶GCN2能通过磷酸化真核翻译起始因子e IF2α来调控蛋白的翻译,进而对逆境胁迫进行应答。在植物中,GCN2通过磷酸化e IF2α抑制蛋白的合成,从而激活植物自身免疫防御以应答各种胁迫。从GCN2的结构、调控及其在植物中的新功能等方面综述了植物GCN2的研究进展,以期为揭示植物GCN2介导的胁迫应答机理提供参考。

关键词：植物 GCN2 调控结构功能

Optimal Design Criteria of Tandem Configuration for High-Load Compressor Cascades

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Journal of Thermal Science 2024年第6期33卷 2047-2058页

作者： MAO Xiaochen JIAO yingchen CHENG hao ZHANG Botao LIU Bo School of Power and Energy Northwestern Polytechnical UniversityXi'an 710129China The National Key Laboratory of Science and Technology on Aerodynamic Design and Research Xi'an 710129China Xi'an Thermal Power Research Institute Co. Ltd.Xi'an 710072China

Axial overlap(AO)and percent pitch(PP)are considered as key position configuration parameters that affect the tandem cascade *** objective of the current study is to investigate the optimal design criteria for these two parameters in tandem cascades of subsonic highly-loaded two-dimensional *** that,the influence mechanisms of AO and PP are explored *** results show that higher PP is beneficial for decreasing rear blade(RB)load,but an invalidity of gap flow occurs when it approaches *** change in AO has an influence on the adverse pressure gradient of the front blade(FB),and it also affects the gap flow strength and FB wake ***,the optimal design criteria for AO and PP are obtained in a large design space,which clarifies the matching relationship of the two parameters at different operating *** best global range of AO is about-0.05 to 0.05 while PP is between 0.85 to 0.92,and PP should be smaller to avoid performance degradation as AO *** to the fault tolerance in practical applications,PP should be closer to the lower bound to ensure that the deterioration boundary is wide enough.

关键词： axial compressor tandem cascade axial overlap percent pitch optimal design criteria

Parallel Dispatch:A New Paradigm of Electrical Power System Dispatch

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IEEE/CAA Journal of Automatica Sinica 2018年第1期5卷 311-319页

作者： Jun Jason Zhang Fei-Yue Wang Qiang Wang Dazhi hao Xiaojing Yang David Wenzhong Gao Xiangyang Zhao yingchen Zhang Department of Electrical and Computer Engineering Ritchie School of Engineering and Computer Science University of Denver Denver 80210 CO USA State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Science (SKL-MCCS CASIA) Beijing 100190 China Research Center of Computational Experiments and Parallel Systems The National University of Defense Technology Changsha 410073 China State Grid Tianjin Electric Power Company Tianjin 300010 China School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China National Renewable Energy Laboratory Golden CO 80401 USA IEEE

Modern power systems are evolving into sociotechnical systems with massive complexity, whose real-time operation and dispatch go beyond human capability. Thus,the need for developing and applying new intelligent power system dispatch tools are of great practical significance. In this paper, we introduce the overall business model of power system dispatch, the top level design approach of an intelligent dispatch system, and the parallel intelligent technology with its dispatch applications. We expect that a new dispatch paradigm,namely the parallel dispatch, can be established by incorporating various intelligent technologies, especially the parallel intelligent technology, to enable secure operation of complex power grids,extend system operators' capabilities, suggest optimal dispatch strategies, and to provide decision-making recommendations according to power system operational goals.

关键词： ACP knowledge automation power dispatch parallel dynamic programming parallel intelligence paralle learning situational awareness

A preliminary study on pollution characteristics of surfactant substances in fine particles in the Beibu Gulf Region of China

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Journal of Environmental Sciences 2021年第4期33卷 363-372页

作者： Zhengzheng Zhang Hong Li Hongyan Liu yingchen Bai Jinjuan Li Guorui Zhi Yanting Yu Wenjun Li hao Zhang Fan Meng National Center for Quality Supervision and Test of Building Engineering China Academy of Building ResearchBeijing 100013China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100021China College of Resource and Environmental Engineering Guizhou UniversityGuiyang 550025China Puyang Institute of Environmental Protection Science Puyang 457000China College of Geoscience and Surveying Engineering Chinese University of Mining&TechnologyBeijing 100083China School of Science Chinese University of GeosciencesBeijing 100083China

The pollution characteristics of surfactant substances in fine particles(PM_(2.5))in spring were studied in the Beibu Gulf Region of China,68 samples of PM_(2.5)were collected at Weizhou Island in Beihai City from March 12 to April 17,*** Anionic Surfactant Substances(ASS)and Cationic Surfactant Substances(CSS)in the samples were analyzed using Byethyl Violet Spectrophotometry and Disulfide Blue Spectrophotometry,*** with the data from backward trajectory simulation,the effects of air pollutants from remote transport on the pollution characteristics of surfactant substances in PM_(2.5)in the Beibu Gulf Region were analyzed and *** results showed that the daily mean concentrations of ASS and CSS in spring in the Beibu Gulf Region were 165.20 pmol/m^(3)and 8.05 pmol/m^(3),and the variation ranges were 23.21–452.55 pmol/m^(3)and 0.65–31.31 pmol/m^(3),accounting for 1.82‰±1.65‰and 0.12‰±0.11‰of the mass concentration of PM_(2.5),*** concentrations were lower than those in comparable regions around the *** was no clear correlation between the concentrations of ASS and CSS in PM_(2.5)and the mass concentrations of PM_(2.5).Tourism and air transport had a positive contribution on the concentrations of *** concentration of surfactant substances in PM_(2.5)was significantly impacted by wind speed and wind *** temperature,air pressure and precipitation had little effect on the concentrations of surfactant *** substances in PM_(2.5)significantly impacted *** also showed that the main sources of surfactant substances were from the southern China and Southeast Asia.

关键词： Fine particles Surfactant substances Pollution characteristics Impact factors Beibu gulf region of China

A review of atmospheric benzene homologues in China: Characterization, health risk assessment, source identification and countermeasures

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Journal of Environmental Sciences 2020年第9期32卷 225-239页

作者： Yuanyuan Ji Fuhong Gao Zhenhai Wu Lei Li Dandan Li hao Zhang Yujie Zhang Jian Gao yingchen Bai Hong Li College of Earth Sciences Jilin UniversityChangchun 130061China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Academy of Environmental Planning and Design Co.LtdNanjing UniversityNanjing 210093China Department of Urban Construction Beijing City UniversityBeijing 100083China College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310058China

Benzene homologues are important chemical precursors to the formation of ground-level ozone and secondary organic aerosol(SOA) in the atmosphere,in addition,some toxic species are harmful to human *** countermeasures have been taken to fight air pollution since 2013,and total amount control of volatile organic compounds is being promoted in China at ***,it is important to understand the pollution situation and the control status of ambient benzene homologues in *** paper reviews research progress from published papers on pollution characteristics,atmospheric photochemical reactivity,health risk assessment and source identification of ambient benzene homologues in recent years in China,and also summarizes policies and countermeasures for the control of ambient benzene homologues and the relevant *** total ambient levels of benzene,toluene,ethylbenzene and xylenes(BTEX) shows a declining tendency from 2001 to 2016 in *** mass concentrations of BTEX are generally higher in southern regions than in northern regions,and they present vertical decreasing variation characteristics with increasing altitude within the height range of about 5500 *** has the highest ozone formation potential and SOA formation potential both in urban areas and background areas,while benzene poses an obvious carcinogenic risk to the exposed adult populations in urban *** identification of ambient benzene homologues suggested that local governments should adopt differentiated control strategies for ambient benzene *** recommendations are put forward for future research and policy-making on the control of ambient benzene homologues in China.

关键词： pollution ambient ozone

Social Energy:Mining Energy From the Society

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IEEE/CAA Journal of Automatica Sinica 2017年第3期4卷 466-482页

作者： Jun Jason Zhang David Wenzhong Gao yingchen Zhang Xiao Wang Xiangyang Zhao Dongliang Duan Xiaoxiao Dai Jun hao Fei-Yue Wang Department of Electrical and Computer Engineering Ritchie School of Engineering and Computer ScienceUniversity of Denver IEEE National Renewable Energy Laboratory Qingdao Academy of Intelligent Industries(QAII) QingdaoShandongChinaand SKL-MCCSCASIA School of Automation Science and Electrical Engineering Beihang University Department of Electrical and Computer Engineering College of Engineering and Applied ScienceUniversity of Wyoming State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of Sciences(SKL-MCCSCASIA) Research Center of Computational Experiments and Parallel Systems National University of Defense Technology

The inherent nature of energy,i.e.,physicality,sociality and informatization,implies the inevitable and intensive interaction between energy systems and social *** this perspective,we define "social energy" as a complex sociotechnical system of energy systems,social systems and the derived artificial virtual systems which characterize the intense intersystem and intra-system *** recent advancement in intelligent technology,including artificial intelligence and machine learning technologies,sensing and communication in Internet of Things technologies,and massive high performance computing and extreme-scale data analytics technologies,enables the possibility of substantial advancement in socio-technical system optimization,scheduling,control and *** this paper,we provide a discussion on the nature of energy,and then propose the concept and intention of social energy systems for electrical power.A general methodology of establishing and investigating social energy is proposed,which is based on the ACP approach,i.e., "artificial systems"(A), "computational experiments"(C) and "parallel execution"(P),and parallel system methodology.A case study on the University of Denver(DU) campus grid is provided and studied to demonstrate the social energy *** the concluding remarks,we discuss the technical pathway,in both social and nature sciences,to social energy,and our vision on its future.

关键词： ACP distribution locational marginal pricing intelligent operation in power systems parallel control parallel intelligence parallel management social energy socio-technical energy systems

集聚效应、配置效率与区域经济增长——主体功能区建设的理论探索

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河北经贸大学学报 2014年第4期35卷 65-70页

作者：郝大江黎映宸哈尔滨商业大学经济学院黑龙江哈尔滨150028

基于经济空间本质属性的分析,并将要素流动纳入规模报酬递增和非完全竞争研究框架,要素禀赋的区域性和非区域性划分可以有效揭示区域经济发展的集聚问题。非区域性要素的空间流动形成了经济活动的集聚过程,而区域性要素与非区域性要素... 详细信息

基于经济空间本质属性的分析,并将要素流动纳入规模报酬递增和非完全竞争研究框架,要素禀赋的区域性和非区域性划分可以有效揭示区域经济发展的集聚问题。非区域性要素的空间流动形成了经济活动的集聚过程,而区域性要素与非区域性要素在生产过程的相互匹配则决定了经济集聚及其外部效应的性质、特征及其内在经济联系。借助固定效应面板数据以及系统广义矩估计方法对我国配置效率、经济集聚与区域经济增长之间动态关系进行的经验检验,其结果也进一步表明了三者之间相互联系、彼此制约,为我国主体功能区建设提供了空间规划布局的新思路。

关键词：配置效率经济集聚主体功能区要素流动区域经济外部效应经济空间要素禀赋