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The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in rice

Molecular Plant 2024年第2期17卷 258-276页

作者： yuqing he Yao Zhao Jitao Hu Lanlan Wang Linying Li Xueying Zhang Zhongjing Zhou Lili Chen Hua Wangl Jiaoyu Wang Gaojie Hong State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China Key Laboratory of Traceability for Agricultural Genetically Modified Organisms Ministry of Agriculture and Rural AffairsHangzhou 310021P.R.China College of Life Sciences Zhejiang Sci-Tech UniversityHangzhou 310018P.R.China State Key Laboratory for Managing Biotic and Chemical Threats to the Qualty and Safety of Agro-products Zhejang Academy of Agricultural SciencesHangzhou 310021P.R.China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products Key Labory of Biotechnology in Plant Protection of MOA of China and Zhejiang ProvinceInstitute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China

The growth-promoting hormones brassinosteroids(BRs)and their key signaling component BZR1 play a vital role in balancing normal growth and defense reactions.here,we discovered that BRs and OsBZR1 up-regulated sakuranetin accumulation and conferred basal defense against Magnaporthe oryzae infection under normal conditions.Resource shortages,including phosphate(Pi)deficiency,potentially disrupt this growth-defense balance.OsSPX1 and OsSPX2 have been reported to sense Pi concentration and interact with the Pi signal mediator OsPHR2,thus regulating Pi starvation responses.In this study,we discovered that OsSPX1/2 interacts with OsBZR1 in both Pi-sufficient and Pi-deficient conditions,inhibit-ing BR-responsive genes.When Pi is sufficient,OsSPX1/2 is captured by OsPHR2,enabling most of OsBzR1 to promote plant growth and maintain basal resistance.In response to Pi starvation,more OsSPX1/2 is released from OsPHR2 to inhibit OsBZR1 activity,resulting in slower growth.Collectively,our study reveals that the OsBZR1-SPX1/2 module balances the plant growth-immunity trade-off in responsetoPiavailability.he Y.,Zhao Y.,Hu J.,Wang L.,Li L.,Zhang X.,Zhou Z.,Chen L.,Wang H.,Wang J.,and Hong G.(2024).The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in esponse to Pi availability.

关键词： immunity maintain adaptation

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Oscillating friction of nanoscale capillary bridge

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Friction 2022年第2期10卷 200-208页

作者： Shuai WU yuqing he Quanshui ZheNG Ming MA Department of Engineering Mechanics.Tsinghua University Beijing 100084China Center for Nano and Micro Mechanics Tsinghua University.Beijing 100084China State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084.China Department of Mechanical Engineering.Tsinghua University Beijing 100084China

The presence of a capillary bridge between solid surfaces is ubiquitous under ambient conditions.Usually,it leads to a continuous decrease of friction as a function of bridge height.here,using molecular dynamics we show that for a capillary bridge with a small radius confined between two hydrophilic elastic solid surfaces,the friction oscillates greatly when decreasing the bridge height.The underlying mechanism is revealed to be a periodic ordered-disordered transition at the liquid–solid interfaces.This transition is caused by the balance between the surface tension of the liquid–vapor interface and the elasticity of the surface.This balance introduces a critical size below which the friction oscillates.Based on the mechanism revealed,a parameter-free analytical model for the oscillating friction was derived and found to be in excellent agreement with the simulation results.Our results describe an interesting frictional phenomenon at the nanoscale,which is most prominent for layered materials.

关键词： capillary bridge nano-confinement elasticity atomically smooth surface

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heterogeneous memory enhanced graph reasoning network for cross-modal retrieval

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Science China(Information Sciences) 2022年第7期65卷 157-169页

作者： Zhong JI Kexin CheN yuqing he Yanwei PANG Xuelong LI School of Electrical and Information Engineering Tianjin University Center for Optical Imagery Analysis and Learning Northwestern Polytechnical University

Cross-modal retrieval(CMR) aims to retrieve the instances of a specific modality that are relevant to a given query from another modality, which has drawn much attention because of its importance in bridging vision with language. A key to the success of CMR is to learn more discriminative and robust representations for both visual and textual instances to further reduce the heterogeneous discrepancy existing in different modalities. In this paper, we address this challenging issue by proposing a heterogeneous memory enhanced graph reasoning network, named HMGR, to connect the semantic correlations between vision and language.On the one hand, we design a novel dual-path network architecture to generate relationship enhanced global representations by employing modality-specific graph reasoning on extracted local features for each instance.In this way, the topological interdependencies of both visual and textual intra-instance local fragments are fully mined to achieve a deeper semantic understanding of the relationships between them. On the other hand,we focus on utilizing inter-instance semantic correlated knowledge to enhance the discriminability of the final learned representations, which is achieved by introducing a joint heterogeneous memory network to iteratively restore both visual and textual instance-level information. Through interacting with long-term contextual multimodal knowledge, an encouraging shared latent feature space for mitigating the heterogeneous gap across different modalities can be learned. Extensive experiments under both image-text retrieval and video-text retrieval scenarios on three benchmark datasets demonstrate the effectiveness of our proposed method.

关键词： cross-modal retrieval graph reasoning memory network visual semantic embedding image-text retrieval video-text retrieval

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Distribution characteristics of photoinitiators and their flux estimation from the Pearl River Delta to the coastal waters of the South China Sea

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Journal of Environmental Sciences 2023年第6期128卷 71-80页

作者： yuqing he Zibin Pan Xinxin Liang Ruiman Xie Yuying Sun Juan Li YaweiWang Lixi Zeng Guangdong Key Laboratory of Environmental Pollution and health School of EnvironmentJinan UniversityGuangzhou 511443China Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality Jinan UniversityGuangzhou 511443China Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China

Photoinitiators(PIs)are widely used in industrial polymerization processes.It has been reported that PIs are ubiquitous in indoor environments and that humans are exposed to PIs,but the occurrence of PIs in natural environments are rarely known.In the present study,25 PIs,including 9 benzophenones(BZPs),8 amine co-initiators(ACIs),4 thioxanthones(TXs)and 4 phosphine oxides(POs),were analyzed in water and sediment samples collected from eight riverine outlets of the Pearl River Delta(PRD).Eighteen,14,and 14 of the 25 target PIs were detected in water,suspended particulatematter(SPM)and sediment samples,respectively.The total concentrations of PIs in water,SPM,and sediment were in the ranges of 2.88–96.1 ng/L,9.25–923 ng/g dry weight(dw),and 3.79–56.9 ng/g dw,with geometric mean concentration(GM)of 10.8 ng/L,48.6 ng/g dw,and 17.1 ng/g dw,respectively.A significant linear regression was observed between the log partitioning coefficients(Kd)values of PIs and their log octanol water partition coefficient(Kow)values(R^(2)=0.535,phe annual riverine input of PIs to the coastal waters of the South China Sea via eightmain outlets of the PRD was estimated to be 4.12×10^(3)kg/year,and the∑BZPs,∑ACIs,∑TXs and∑POs contributed to 1.96×10^(3),1.24×10^(3),89.6 and 830 kg/year,respectively.This is the first report of a systematic description of the occurrence characteristics of PIs exposure in water,SPM,and sediment.The environmental fate and risks of PIs in aquatic environments need further investigations.

关键词： Photoinitiators Riverine inputs Distribution characteristics Partitioning coefficients Pearl River Delta

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Design,modeling,and control of morphing aircraft:A review

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Chinese Journal of Aeronautics 2022年第5期35卷 220-246页

作者： Lingling CHU Qi LI Feng GU Xintian DU yuqing he Yangchen DENG State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110169China University of Chinese Academy of Sciences Beijing 100049China Shenyang Aircraft Design&Research Institute Shenyang 110034China

A morphing aircraft can adapt its configuration to suit different types of tasks,which is also an important requirement of Unmanned Aerial Vehicles(UAV).The successful development of an unmanned morphing aircraft involves three steps that determine its ability and intelligent:configuration design,dynamic modeling and flight control.This study conducts a comprehensive survey of morphing aircraft.First,the methods to design the configuration of a morphing aircraft are presented and analyzed.Then,the nonlinear dynamic characteristics and aerodynamic interference caused by a morphing wing are described.Subsequently,the dynamic modeling and flight control methods for solving the flight control problems are summarized with respect to these features.Finally,the general as well as special challenges ahead of the development of intelligent morphing aircraft are discussed.The findings can provide a theoretical and technical reference for designing future morphing aircraft or morphing-wing UAVs.

关键词： Aircraft design Dynamic modeling Fault tolerance Flight control Intelligent material Morphing aircraft Unmanned Aerial Vehicles(UAV)

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Active model-based nonlinear system identification of quad tilt-rotor UAV with flight experiments

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Science China(Information Sciences) 2022年第8期65卷 105-119页

作者： Zhong LIU Didier TheILLIOL yuqing he Feng GU Liying YANG Jianda HAN Xi'an Modern Control Technology Research Institute State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of Sciences Institutes for Robotics and Intelligent Manufacturing Chinese Academy of Sciences College of Artificial Intelligence Nankai University Faculte des Sciences et Techniques CRAN UMR 7039CNRSUniversity of Lorraine

To propose an accurate and less complex model of a special unmanned aerial vehicle(UAV),namely tilt-rotor UAV(TRUAV), this study identifies the active model-based nonlinear system of a quadTRUAV. First, a nominal nonlinear model of the vehicle is formulated. Some unstructured nonlinearities are ignored to reduce the complexity of the model. Then, due to the unstable dynamics of the open-loop system,the format of this nominal model is considered to design an innovative smooth-switch attitude control via interconnection and damping assignment passivity-based control(IDA-PBC). Active model-based nonlinear system identification is studied for the vehicle with the designed control method and flight experiments.The model error vector is defined and estimated by the unscented Kalman filter(UKF) to improve the accuracy of the model. The main contribution of this paper is to identify the nominal nonlinear model and to develop an active model method of the quad-TRUAV. The attitude control method with an innovative smooth-switch structure is another contribution to flight experiments. Numerical results are displayed to present the experimental results and effectiveness of the proposed nonlinear models.

关键词： tilt-rotor unmanned aerial vehicle flight control nonlinear system identification active model method unscented Kalman filter

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Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems

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Geoscience Frontiers 2022年第5期13卷 75-88页

作者： Qixing Zhou Simin Wang Jiaqi Liu Xiangang Hu Yuxia Liu yuqing he Xuan he Xiaotong Wu MOE Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityNo.38 Tongyan RoadJinnan DistrictTianjin 300350China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China State Key Laboratory of Petroleum Pollution Control China University of PetroleumBeijing 102200China

Populations and metropolitan centers are accumulated in coastal areas around the world.In view of the fact that they are geographically adjacent to coasts and intense anthropogenic activities,increasing global offshore pollution has been an important worldwide concern over the past several decades and has become a very serious problem that needs to be addressed urgently.Due to offshore pollution,various geological disasters occur in high frequency,including intensified erosion and salinization of coastal soils,frequent geological collapses and landslides and increasing seismic activities.Moreover,offshore pollution shows increasingly serious impacts on the topography and geomorphology of offshore and coastal areas,including coastal degradation,retreating coastlines and estuary delta erosion.Offshore sedimentation processes are strongly influenced by the pH changes of terrestrial discharges,and sedimentary dynamics have become extremely acute and complex due to offshore pollution.The seabed topography and hydrodynamic environment determine the fate and transport of pollutants entering offshore regions.Coastal estuaries,port basins and lagoons that have relatively moderate ocean currents and winds are more likely to accumulate pollutants.Offshore regions and undersea canyons can be used as conduits for transporting pollutants from the continent to the seabed.It is particularly noteworthy that the spatial/temporal distribution of species,community structures,and ecological functions in offshore areas have undergone unprecedented changes in recent decades.Due to increasing offshore pollution,the stable succession and development trend of marine ecosystems has been broken.It is thus important to identify and regulate the quantity,composition and transportation of pollutants in offshore regions and their behavior in marine ecosystems.In particular,crucial actions for stabilizing marine ecosystems,including increasing species and biodiversity,should be implemented to enhance their anti-interference capabilities.This rev

关键词： Global offshore pollution Geological evolution Sedimentation Marine ecosystem Coastal area

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More Divisibility Properties for Binomial Coefficients

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Journal of Mathematical Research with Applications 2022年第6期42卷 561-579页

作者： Jiaqi XIAO yuqing he Pingzhi YUAN School of Mathematics South China Normal University

Let a, b and n be positive integers with a > b, we prove the following divisibility property: For all positive integers n, we have ■which extends the result of Yang. And for all positive integers n, we show the follo... 详细信息

关键词： binomial coefficients p-adic order divisibility property

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Thermo-kinetic connectivity by integrating thermo-kinetic correlation and generalized stability

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Journal of Materials Science & Technology 2022年第32期127卷 225-235页

作者： yuqing he Shaojie Song Jinglian Du Haoran Peng Zhigang Ding Huaiyu Hou Linke Huang Yongchang Liu Feng Liu State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an 710072China School of Materials and Chemical Engineering Xi’an Technological UniversityXi’an 710021China Nano and heterogeneous Materials Center School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China State Key Lab of Hydraulic Engineering Simulation and Safety School of Materials Science&EngineeringTianjin UniversityTianjin 300072China

Designing structured materials with optimized mechanical properties generally focuses on engineering microstructures,which are closely determined by the processing routes,such as phase transformations(PTs)and plastic deformations(PDs).Both PTs and PDs follow inherent trade-off relation between thermodynamic driving force ΔG and kinetic energy barrier Q,i.e.,so-called thermo-kinetic correlation.By analyzing nucleation and growth and proposing a conception of negative driving force integrating strain energy,interface energy and any kind of energy that equivalently inhibits the PT itself,ΔG^(S),unified expressions for the thermo-kinetic correlation and generalized stability(GS)were derived for three kinds of PTs,i.e.,diffusive PTs with simultaneously decreasedΔG and increased Q,diffusive PTs with simultaneously increasedΔG and decreased Q,and displacive PTs with simultaneously increased ΔG and decreased Q.This leads to so-called thermo-kinetic connectivity by integrating the thermo-kinetic correlation and the GS,where,by application in typical PTs,it was clearly shown,a criterion of high ΔG-high GS can be predicted by modulating chemical driving force,negative driving force and kinetic energy barrier for diffusion or nucleation.Following thermo-kinetic connectivity,analogous procedure for dislocation evolution upon PDs was performed,and materials design in terms of the highΔG-high GS criterion was discussed and prospected.

关键词： Thermo-kinetic correlation Negative driving force Generalized stability Thermo-kinetic connectivity

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Coordinative regulation of plants growth and development by light and circadian clock

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aBIOTECH 2021年第2期2卷 176-189页

作者： Chen Su Yan Wang Yingjun Yu yuqing he Lei Wang Key Laboratory of Plant Molecular Physiology CAS Center for Excellence in Molecular Plant SciencesInstitute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China

The circadian clock,known as an endogenous timekeeping system,can integrate various cues to regulate plant physiological functions for adapting to the changing environment and thus ensure optimal plant growth.The synchronization of internal clock with external environmental information needs a process termed entrainment,and light is one of the predominant entraining signals for the plant circadian clock.Photoreceptors can detect and transmit light information to the clock core oscillator through transcriptional or post-transcriptional interactions with core-clock components to sustain circadian rhythms and regulate a myriad of downstream responses,including photomorphogenesis and photoperiodic flowering which are key links in the process of growth and development.here we summarize the current understanding of the molecular network of the circadian clock and how light information is integrated into the circadian system,especially focus on how the circadian clock and light signals coordinately regulate the common downstream outputs.We discuss the functions of the clock and light signals in regulating photoperiodic flowering among various crop species.

关键词： Circadian clock Light signaling Photomorphogenesis Flowering time

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