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RING-box proteins regulate leaf senescence and stomatal closure via repression of ABA transporter gene ABCG40

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Journal of Integrative Plant Biology 2022年第5期64卷 979-994页

作者： Yun Qi Wei jun jie yuan Chen Chen Xiao Gui Xin Li Jing Ying Yan Shao Jian Zheng Zhong jie Ding State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Guangdong Laboratory for Lingnan Modern Agriculture College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China

Plant hormone abscisic acid(ABA)plays an indispensable role in the control of leaf senescence,during which ABA signaling depends on its ***,the role of ABA transport in leaf senescence remains ***,we identified two novel RING-box protein-encoding genes UBIQUITIN LIGASE of SENESCENCE 1 and2(ULS1 and ULS2)involved in leaf *** of ULS1 and ULS2 accelerates leaf senescence,which is specifically promoted by ABA ***,the expression of senescence-related genes is significantly affected in mature leaves of uls1/uls2 double mutant(versus wild type(WT))in an ABA-dependent manner,and the ABA content is substantially ***1 and ULS2 are mainly expressed in the guard cells and aging leaves,and the expression is induced by *** RNA-seq and quantitative proteomics of ubiquitination reveal that ABA transporter ABCG40 is highly expressed in uls1/uls2 mutant versus WT,though it is not the direct target of ULS1/***,we show that the acceleration of leaf senescence,the increase of leaf ABA content,and the promotion of stomatal closure in uls1/usl2 mutant are suppressed by abcg40 loss-of-function *** results indicate that ULS1 and ULS2 function in feedback inhibition of ABCG40-dependent ABA transport during ABA-induced leaf senescence and stomatal closure.

关键词： ABA Arabidopsis E3 ligase leaf senescence stomata transport

Two new C18-norditerpenoid alkaloids from Aconitum delavayi

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Chinese Chemical Letters 2007年第4期18卷 409-411页

作者： Shan Hao Jiang Hai Qing Wang Yi Ming Li Shuang jun Lin jun jie Tan Da yuan Zhu State Key Laboratory of Drug Research Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 201203 China

Further phytochemical investigation of the unique C 18-norditerpenoid alkaloids from the roots ofAconitum delavayi Franch led to the isolation of two new norditerpenoid alkaloids, delavaconitine F 1 and delavaconitine... 详细信息

关键词： Aconitum delavayi Ranunculaceae Norditerpenoid alkaloid Delavaconitine F Delavaconitine G

Probing structural and electronic properties of divalent metal Mg_(n+1) and SrMgn (n=2–12) clusters and their anions

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Chinese Physics B 2022年第1期31卷 465-471页

作者： Song-Guo Xi Qing-Yang Li Yan-Fei Hu Yu-Quan yuan Ya-Ru Zhao jun-jie yuan Meng-Chun Li Yu-jie Yang School of Physics and Electronic Engineering Sichuan University of Science&EngineeringZigong 643000China Department of Applied Physics Chengdu University of TechnologyChengdu 610059China College of Physics&Optoelectronics Technology Baoji University of Arts and SciencesBaoji 721016China

Divalent metal clusters have received great attention due to the interesting size-induced nonmetal-to-metal transition and fascinating properties dependent on cluster size,shape,and *** this work,the combination of the CALYPSO code and density functional theory(DFT)optimization is employed to explore the structural properties of neutral and anionic Mg_(n+1) and SrMgn(n=2-12)*** results exhibit that as the atomic number of Mg increases,Sr atoms are more likely to replace Mg atoms located in the skeleton convex *** analyzing the binding energy,second-order energy difference and the charge transfer,it can be found the SrMg9 cluster with tower framework presents outstanding stability in a studied size ***,bonding characteristic analysis reveals that the stability of SrMg9 can be improved due to the strong s-p interaction among the atomic orbitals of Sr and Mg atoms.

关键词： SrMgn(n=2-12)clusters CALYPSO code density functional theory(DFT)optimization

Ethylene promotes seed iron storage during Arabidopsis seed maturation via ERF95 transcription factor

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Journal of Integrative Plant Biology 2020年第8期62卷 1193-1212页

作者： Ying Sun Jia Qi Li Jing Ying Yan jun jie yuan Gui Xin Li Yun Rong Wu Ji Ming Xu Rong Feng Huang Nicholas P.Harberd Zhong jie Ding Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Department of Plant Science University of OxfordOxford OX13RBUnited Kingdom

Because Iron(Fe)is an essential element,Fe storage in plant seeds is necessary for seedling establishment following ***,the mechanisms controlling seed Fe storage during seed development remain largely *** we reveal that an ERF95 transcription factor regulates Arabidopsis seed Fe *** show that expression of ERF95 increases during seed maturation,and that lack of ERF95 reduces seed Fe accumulation,consequently increasing sensitivity to Fe deficiency during seedling ***,overexpression of ERF95 has the opposite *** show that lack of ERF95 decreases abundance of FER1 messenger RNA in developing seed,which encodes Fe-sequestering ***,a fer1-1 loss-of-function mutation confers reduced seed Fe accumulation,and suppresses ERF95-promoted seed Fe *** addition,ERF95 binds to specific FER1 promoter GCC-boxes and transactivates FER1 *** show that ERF95 expression in maturing seed is dependent on EIN3,the master transcriptional regulator of ethylene *** lack of EIN3 reduces seed Fe content,overexpression of ERF95 rescues Fe accumulation in the seed of ein3 loss-of-function ***,we show that ethylene production increases during seed *** conclude that ethylene promotes seed Fe accumulation during seed maturation via an EIN3-ERF95-FER1-dependent signaling pathway.

关键词： expression. ERF Arabidopsis

Surgical guidance system and computer navigation for simultaneous femoral osteotomy and *** arthroplasty for treatment of osteoarthritis associated with severe extra-articular deformity

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Chinese Medical Journal 2012年第22期125卷 4145-4148页

作者： SHAO jun-jie WANG Qi yuan Jian-bin ZHANG Xian-long Shanghai Jiao Tong Univ Dept Joint Surg Shanghai Peoples Hosp 6 Shanghai 200233 Peoples R China Shanghai Jiao Tong Univ Shanghai 200233 Peoples R China

Total knee arthroplasty （TKA） is an effective treatment for severe knee arthritis. However, TKA is more challenging when that arthritis is associated with femoral deformity that has resulted in irregularity of the canal and variation in anatomic landmarks. In such cases, it is difficult to restore the mechanical alignment of the lower limb using intramedullary instruments.

关键词： arthroplasty computer assisted surgery deformity guidance knee replacement

Spectroelectrochemical Studies on the Interactions of Complexes of Cu(phen)^(2+)_(2) and Cu(bpy)^(2+)_(2) with DNA

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Chemical Research in Chinese Universities 1997年第2期13卷 25-33页

作者： ZHAO Guang chao, ZHU jun jie and CHEN Hong yuan ** (Department of Chemistry, the State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093)

The interactions of the complexes of Cu(phen) 2+ 2 and Cu(bpy) 2+ 2 with DNA were investigated with electrochemistry and spectroelectrochemistry. Binding constants( K n + ) and the reaction model were obtained from their electrochemical behavior and electrochemical data. The binding constants( K 2+ ) for Cu(phen) 2+ 2 DNA and Cu(bpy) 2+ 2 DNA were 8 51×10 3 L·mol -1 and 3 27×10 3 L·mol -1 , and K +s were 3 09×10 4 L·mol -1 and 5 66×10 3 L·mol -1 respectively. The spectroscopic characteristics of the complexes of Cu(phen) 2+ 2 DNA and Cu(bpy) 2+ 2 DNA were studied in detail. Some significant spectroelectrochemical data were obtained. The interaction of DNA with complexes was described.

关键词： DNA Interaction Cu(phen) 2+ 2 Cu(bpy) 2+ 2 Spectroelectrochemistry

Wedge-shaped HfO_(2) buffer layer-induced field-free spin-orbit torque switching of HfO_(2)/Pt/Co structure

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Chinese Physics B 2024年第4期33卷 662-667页

作者：陈建辉梁梦凡宋衍袁俊杰张梦旸骆泳铭王宁宁 School of Electronics and Information Engineering Hangzhou Dianzi UniversityHangzhou 310018China Covestro lnvestment Co. LtdShanghai 200126China

Field-free spin-orbit torque(SOT)switching of perpendicular magnetization is essential for future spintronic *** study demonstrates the field-free switching of perpendicular magnetization in an HfO_(2)/Pt/Co/TaO_(x) structure,which is facilitated by a wedge-shaped HfO_(2)buffer *** field-free switching ratio varies with HfO_(2)thickness,reaching optimal performance at 25 *** phenomenon is attributed to the lateral anisotropy gradient of the Co layer,which is induced by the wedge-shaped HfO_(2)buffer *** thickness gradient of HfO_(2)along the wedge creates a corresponding lateral anisotropy gradient in the Co layer,correlating with the switching *** findings indicate that field-free SOT switching can be achieved through designing buffer layer,offering a novel approach to innovating spin-orbit device.

关键词： spin-orbit torque field-free switching HfO_(2) buffer layer

Locally Enhanced Flow and Electric Fields Through a Tip Effect for Efficient Flow‑Electrode Capacitive Deionization

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Nano-Micro Letters 2025年第2期17卷 1-17页

作者： Ziquan Wang Xiangfeng Chen yuan Zhang jie Ma Zhiqun Lin Amor Abdelkader Maria‑Magdalena Titirici Libo Deng College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore Department of Engineering Faculty of Science and TechnologyBournemouth UniversityTalbot CampusFern BarrowPooleEngland BH125BBUK Institut de Chimie de Nice UniversitéCôte d’AzurUMR CNRS 727228 Av.Valrose06108 NiceFrance Department of Chemical Engineering Imperial College LondonSouth Kensington CampusExhibition RdLondon SW72AZUK

Low-electrode capacitive deionization(FCDI)is an emerging desalination technology with great potential for removal and/or recycling ions from a range of ***,it still suffers from inefficient charge transfer and ion transport kinetics due to weak turbulence and low electric intensity in flow electrodes,both restricted by the current ***,a new tip-array current collector(designated as T-CC)was developed to replace the conventional planar current collectors,which intensifies both the charge transfer and ion transport *** effects of tip arrays on flow and electric fields were studied by both computational simulations and electrochemical impedance spectroscopy,which revealed the reduction of ion transport barrier,charge transport barrier and internal *** the voltage increased from 1.0 to 1.5 and 2.0 V,the T-CC-based FCDI system(T-FCDI)exhibited average salt removal rates(ASRR)of 0.18,0.50,and 0.89μmol cm^(-2) min^(-1),respectively,which are 1.82,2.65,and 2.48 folds higher than that of the conventional serpentine current collectors,and 1.48,1.67,and 1.49 folds higher than that of the planar current ***,with the solid content in flow electrodes increased from 1 to 5 wt%,the ASRR for T-FCDI increased from 0.29 to 0.50μmol cm^(-2) min^(-1),which are 1.70 and 1.67 folds higher than that of the planar current ***,a salt removal efficiency of 99.89%was achieved with T-FCDI and the charge efficiency remained above 95%after 24 h of operation,thus showing its superior long-term stability.

关键词： Flow-electrode Capacitive deionization Current collector Tip effect Desalination

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活性粉末混凝土配制技术的试验研究

施工技术 2005年第S2期34卷 73-76,81页

作者：王震宇王俊亭袁杰哈尔滨工业大学黑龙江哈尔滨150090

首先研究了各种减水剂和配合比设计对活性粉末混凝土(RPC)性能的影响。试验对水胶比以及硅灰、粉煤灰、磨细石英粉和钢纤维等原材料的掺配比例对RPC的抗折强度、抗压强度和流动性的影响规律进行了研究。结果显示,掺入粉煤灰取代部分水... 详细信息

首先研究了各种减水剂和配合比设计对活性粉末混凝土(RPC)性能的影响。试验对水胶比以及硅灰、粉煤灰、磨细石英粉和钢纤维等原材料的掺配比例对RPC的抗折强度、抗压强度和流动性的影响规律进行了研究。结果显示,掺入粉煤灰取代部分水泥用量,可较好地改善RPC的强度和工作性能。最后提出了一种通过热水养护,抗压强度可以超过200MPa的超高强混凝土。

关键词：活性粉末混凝土配合比抗压强度粉煤灰钢纤维