|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Transcriptional analysis and histochemistry reveal that hypersensitive cell death and H2O2 have crucial roles in the resistance of tea plant (Camellia sinensis (L.) O. Kuntze) to anthracnose显示文摘Anthracnose causes severe losses of tea production in China.Although genes and biological processes involved in anthracnose resistance have been reported in other plants,the molecular response to anthracnose in tea plant is unknown.We used the susceptible tea cultivar Longjing 43 and the resistant cultivar Zhongcha 108 as materials and compared transcriptome changes in the leaves of both cultivars following Colletotrichum fructicola inoculation.In all,9015 and 8624 genes were differentially expressed between the resistant and susceptible cultivars and their controls(0 h),respectively.In both cultivars,the differentially expressed genes(DEGs)were enriched in 215 pathways,including responses to sugar metabolism,phytohormones,reactive oxygen species(ROS),biotic stimuli and signalling,transmembrane transporter activity,protease activity and signalling receptor activity,but DEG expression levels were higher in Zhongcha 108 than in Longjing 43.Moreover,functional enrichment analysis of the DEGs showed that hydrogen peroxide(H2O2)metabolism,cell death,secondary metabolism,and carbohydrate metabolism are involved in the defence of Zhongcha 108,and 88 key genes were identified.Protein–protein interaction(PPI)network demonstrated that putative mitogen-activated protein kinase(MAPK)cascades are activated by resistance(R)genes and mediate downstream defence responses.Histochemical analysis subsequently validated the strong hypersensitive response(HR)and H2O2 accumulation that occurred around the hyphal infection sites in Zhongcha 108.Overall,our results indicate that the HR and H2O2 are critical mechanisms in tea plant defence against anthracnose and may be activated by R genes via MAPK cascades. | Yuchun Wang Xinyuan Hao Qinhua Lu Lu Wang Wenjun Qian Nana Li Changqing Ding Xinchao Wang Yajun Yang | 2018 | Horticulture Research2018，5，1： | 11 |
| 2 | Halide Homogenization for High-Performance Blue Perovskite Electroluminescence显示文摘Metal halide perovskite light-emitting diodes(LEDs)have achieved great progress in recent years.However,bright and spectrally stable blue perovskite LED remains a significant challenge.Three-dimensional mixed-halide perovskites have potential to achieve high brightness electroluminescence,but their emission spectra are unstable as a result of halide phase separation.Here,we reveal that there is already heterogeneous distribution of halides in the as-deposited perovskite films,which can trace back to the nonuniform mixture of halides in the precursors.By simply introducing cationic surfactants to improve the homogeneity of the halides in the precursor solution,we can overcome the phase segregation issue and obtain spectrally stable single-phase blueemitting perovskites.We demonstrate efficient blue perovskite LEDs with high brightness,e.g.,luminous efficacy of 4.7,2.9,and 0.4 lmW^(-1) and luminance of over 37,000,9,300,and 1,300 cdm^(-2) for sky blue,blue,and deep blue with Commission Internationale de l’Eclairage(CIE)coordinates of(0.068,0.268),(0.091,0.165),and(0.129,0.061),respectively,suggesting real promise of perovskites for LED applications. | Lu Cheng Chang Yi Yunfang Tong Lin Zhu Gunnar Kusch Xiaoyu Wang Xinjiang Wang Tao Jiang Hao Zhang Ju Zhang Chen Xue Hong Chen Wenjie Xu Dawei Liu Rachel AOliver Richard HFriend Lijun Zhang Nana Wang Wei Huang Jianpu Wang | 2020 | Research2020，，1： | 4 |
| 3 | The formation of perovskite multiple quantum well structures for high performance light-emitting diodes显示文摘Recent works showed that high efficient perovskite light-emitting diodes can be achieved from solution-processed,self-organized multiple quantum wells(MQWs)with an energy cascade.We investigate how the mixing of QWs with different band gaps can affect the perovskite LED device performance.We find that the annealing process can significantly affect the constitution of the MQWs films,where the dominant phase can evolve from large band gap QWs to small band gap QWs.The optimal constitution for LED application lies in a transition point of small-n QWs dominant phase to large-n QWs dominant phase,when the MQW film presents highest photoluminescence while still remains uniform film morphology. | Yan Sun Li Zhang Nana Wang Shuting Zhang Yu Cao Yanfeng Miao Mengmeng Xu Hao Zhang Hai Li Chang Yi Jianpu Wang Wei Huang | 2018 | npj Flexible Electronics2018，2，1： | 4 |
| 4 | Timing of formation of the Hongdonggou Pb-Zn polymetallic ore deposit,Henan Province,China:Evidence from Rb-Sr isotopic dating of sphalerites显示文摘The Hongdonggou Pb-Zn polymetallic ore deposit,located in the southwestern part of the Luanchuan Mo-W-Pb-Zn-Ag polymetallic ore mineralization in Henan Province,China,is an important part of the East Qinling metallogenic belt.The orebodies in the deposit,which are vein,bedded and lenticular,are mainly hosted in the syenite porphyry,and formed within the carbonate and clastic rocks of the Yuku and Qiumugou formations partially.The genesis of the deposit has previously been argued to be of hydrothermal-vein type or of skarn-hydrothermal type.In this study,we report the results of Rb-Sr isotopic dating based on sphalerites from the main orebody of the Hongdonggou Pb-Zn polymetallic ore deposit,which yield an isochron age of 135.7 ± 3.2 Ma,constraining the timing of mineralization as early Cretaceous.The age is close to those reported for the Pb-Zn deposits in the Luanchuan ore belt.The(^(87)Sr/^(86)Sr),values of the sphalerites(0.71127 + 0.00010) are lower than that of terrigenous silicates(0.720) and higher than the mantle(0.707),suggesting that the metallogenic components were mainly derived through crust-mantle mixing.Combining the results from this study with those from previous work,we propose that the Hongdonggou Pb-Zn polymetallic ore deposit is a hydrothermal-vein deposit associated with the early Cretaceous tectonothermal event,and the mineralization is controlled by NWand near EW-trending faults in the Luanchuan Mo-W-Pb-Zn-Ag polymetallic ore concentration belt. | Fan Yang Gongwen Wang Huawen Cao Ruixi Li Li Tang Yufeng Huang Hao Zhang Fei Xue Wenjuan Jia Nana Guo | 2017 | Geoscience Frontiers2017，8，3： | 2 |
| 5 | Source apportionment of polycyclic aromatic hydrocarbons(PAHs) in a sediment core from Lake Dagze Co, Tibetan Plateau, China: Comparison of three receptor models显示文摘Receptor models are a useful tool for identifying sources of polycyclic aromatic hydrocarbons(PAHs) in multiple environmental media. In this study, three different receptor models(including the principal component analysis-multiple linear regression(PCA-MLR), positive matrix factorization(PMF), and Unmix models) were used to apportion the sources of 16 priority PAHs in a sediment core of Lake Dagze Co. The ΣPAHs(sum of all 16 measured PAHs) concentrations ranged from 51.89 to 132.82 ng/g with an average of 80.39 ng/g. TheΣ PAHs were dominated by 2-3 ring PAHs, accounting for 80.12% on average, thereby indicating that they mainly originated from biomass and coal combustion and/or from long-range atmospheric transportation. The three models produced consistent source apportionment results. The greatest contributor to ΣPAHs was biomass combustion, followed by coal combustion, vehicle emissions, and petrogenic sources. Moreover, the temporal variation of the common sources was well-correlated among models. The multi-method comparison and evaluation results showed that all three models were useful tools for source apportionment of PAHs, with the PMF model providing better results than the PCA-MLR and Unmix models. The temporal trends of factor contributions were verified by PAHs with different ring numbers. Significant correlations were found between the simulated concentrations of each source factor and the PAHs with different ring numbers(P<0.01), except for the petrogenic source identified by the Unmix model(P>0.05). This study can provide useful information for further investigation of source apportionment of PAHs in the sediment cores. | Yixin Bai Kunlin Shi Heyu Yu Nana Shang Weiyue Hao Chuan Wang Tao Huang Hao Yang Changchun Huang | 2022 | Journal of Environmental Sciences2022，34，11： | 2 |
| 6 | Water body mapping method with HJ-1A/B satellite imagery显示文摘 | Shanlong Lu Bingfang Wu Nana Yan Hao Wang | 2010 | International Journal of Applied Earth Observations and Geoinformation2010，，3： | 1 |
| 7 | Remote Sensing-based Spatiotemporal Distribution of Grassland Aboveground Biomass and Its Response to Climate Change in the Hindu Kush Himalayan Region显示文摘The grassland in the Hindu Kush Himalayan(HKH) region is one of the large st and most biodiverse mountain grassland types in the world,and its ecosystem service functions have profound impacts on the sustainable development of the HKH region.Monitoring the spatiotemporal distribution of grassland aboveground biomass(AGB) accurately and quantifying its response to climate change are indispensable sources of information for sustainably managing grassland ecosystems in the HKH region.In this study,a pure vegetation index model(PVIM) was applied to estimate the long-term dynamics of grassland AGB in the HKH region during 2000-2018.We further quantified the response of grassland AGB to climate change(temperature and precipitation) by partial correlation and variance partitioning analyses and then compared their differences with elevation.Our results demonstrated that the grassland AGB predicted by the PVIM had a good linear relationship with the ground sampling data.The grassland AGB distribution pattern showed a decreasing trend from east to west across the HKH region except in the southern Himalayas.From 2000 to 2018,the mean AGB of the HKH region increased at a rate of 1.57 g/(m~2·yr) and ranged from 252.9(2000) to 307.8 g/m~2(2018).AGB had a positive correlation with precipitation in more than 80% of the grassland,and temperature was positively correlated with AGB in approximately half of the region.The change in grassland AGB was more responsive to the cumulative effect of annual precipitation,while it was more sensitive to the change in temperature in the growing season;in addition,the influence of climate varied at different elevations.Moreover,compared with that of temperature,the contribution of precipitation to grassland AGB change was greater in approximately 60% of the grassland,but the differences in the contribution for each climate factor were small between the two temporal scales at elevations over 2000 m.An accurate assessment of the temporal and spatial distributions of grassland AGB and the quantification of its response to climate change are of great significance for grassland management and sustainable development in the HKH region. | XU Cong LIU Wenjun ZHAO Dan HAO Yanbin XIA Anquan YAN Nana ZENG Yuan | 2022 | Chinese Geographical Science2022，32，5： | 1 |
| 8 | Down-regulation of CASK in glucotoxicity- nduced insulin dysfunction in pancreatic β cells显示文摘高葡萄糖的水平在胰腺的房间,而是机制遗体上施加有害效果不清楚。Calcium/calmodulin-dependent 丝氨酸蛋白质 kinase (木桶) 在 neurotransmitters 的神经开发和版本起一个重要作用,并且可能在在胰腺的房间膜上胰岛素抛锚起一个作用。组织缺氧可诱导的因素(HIF1 ) 1 涉及房间机能障碍。这研究的目的是提供木桶能涉及导致 glucotoxicity 的胰岛素分泌物机能障碍的一些基本证据在 INS-1E 房间由 HIF1 调停了。木桶 overexpression plasmid, HIF1 收缩筋(CoCl 2), 和 HIF1 选择禁止者(KC7F2 ) 被使用。结果证明有高葡萄糖的长期的刺激能在 INS-1E 房间导致胰岛素分泌物机能障碍。木桶的 Overexpression 部分在胰岛素分泌物上颠倒了高葡萄糖的效果。CoCl 2 减少了木桶的表示,但是 KC7F2 颠倒了导致 glucotoxicity 的木桶水平减小。这些结果建议在 INS-1E 房间的导致 glucotoxicity 的胰岛素分泌物缺点能被 HIF1 经由木桶的下面规定调停。 | Yao Wang Nana Hao Haiyan Lin Tianyuan Wang Jinyang Xie Yuexing Yuan | 2018 | Acta Biochimica et Biophysica Sinica2018，50，3： | 1 |
| 9 | Multiple-quantum-well perovskite for hole-transport-layer-free light-emitting diodes显示文摘We demonstrate hole-transport-layer-free light-emitting diodes(LEDs) based on solution-processed multiple-quantum-well(MQW) perovskite. The MQW perovskite can self-assemble to a unique structure of vertically graded distribution with two-dimensional layered perovskite covered by three-dimensionallike perovskite at top, which can naturally form a barrier of electron transporting to the anode interface,thereby enhancing the charge capture efficiency. This leads to hole-transport-layer-free MQW perovskite LEDs reaching an external quantum efficiency(EQE) of 9.0% with emission peak at 528 nm, which is over6 times of LEDs based on three-dimensional perovskite with the same device structure, representing the record EQE of hole-transport-layer-free perovskite LED. | Peifeng Li Jie Wang Hong Chen Hao Zhang Cheng Li Wenjie Xu Renzhi Li Lin Zhu Nana Wang Jianpu Wang | 2022 | Chinese Chemical Letters2022，33，2： | 1 |
| 10 | Tuning crystal orientation and charge transport of quasi-2D perovskites via halogen-substituted benzylammonium for efficient solar cells显示文摘Quasi-two-dimensional(quasi-2D)perovskites with high stability usually suffers from poor device efficiency.Chemical tuning of the spacer cations has been an effective strategy to achieve efficient and stable quasi-2D perovskite solar cells.Here,we demonstrate that 3-halogon-substituted benzylammonium iodide(3X-BAI,X=F,Cl,Br,I)can significantly affect the orientation of low-dimensional perovskites and charge transport from perovskite to hole extraction layer,as well as device performance.With 3Br-BAI,we achieve the highest device efficiency of 13.21%for quasi-2D perovskites with a nominal n=3 average composition.Our work provides a facile approach to regulate vertical crystal orientation and charge transport via tuning the molecular structure of organic spacer toward high performance quasi-2D perovskite solar cells. | Guiqiang Cheng Jian Wang Rong Yang Cheng Li Hao Zhang Nana Wang Renzhi Li Jianpu Wang Wei Huang | 2022 | Journal of Energy Chemistry2022，31，3： | 1 |
| 11 | Effects of Dispersive Agent and Alumina Micropowder on Workability of Al_2O_3-MgO Castables for Steel Ladles显示文摘This work aims at enhancing the workability of Al2 O3-Mg O castables. Al2 O3-Mg O castables were prepared using tabular alumina particles( 5-3,3-1,≤1 mm),tabular alumina fines( ≤0. 088 mm),fused magnesia( ≤1 mm),reactive alumina micropowder( PFR40,PBR,and CL) and calcined alumina micropowder( AC34 B5 and CT) as the main starting materials,calcium aluminate cement( Secar71) as the binder,and polycarboxylic acid water reducer WS,FS,and AD as the dispersive agent,respectively. Effects of three dispersive agents addition( 0. 4 mass% WS,0. 2 mass% FS and 1 mass% AD),two kinds of reactive alumina micropowder addition( PFR40 and PBR),composite alumina micropowder addition( PFR40-AC34 B5 and CL-CT,the mass ratio from 9/0 to 3/6)on the flow value,apparent porosity,bulk density,cold crushing strength and cold modulus of rupture of Al2 O3-MgO castables were investigated. The results show that:( 1) with PBR or PFR40,the castables with0. 4 mass% WS own better performance than those with0. 2 mass% FS or 1 mass% AD;( 2) compared with the castables with CL-CT composite powder, the castables with PFR40-AC34 B5 composite powder have slightly higher flow value; with the decreasing ratio of PFR40 and AC34 B5,or the decreasing ratio of CL andCT,the castables have declined flow value and the dried castable specimens have decreased density but the mildly changed strength; in consideration of the high price of reactive alumina,a proper compositing ratio shall be selected. | WANG Qingheng LI Yuanbing WEI Hao XU Nana LI Shujing LUO Han XIANG Ruofei | 2018 | China's Refractories2018，27，3： | 0 |
| 12 | Clustering residential electricity load curve via community detection in network显示文摘Performing analytics on the load curve(LC)of customers is the foundation for demand response which requires a better understanding of customers'consumption pattern(CP)by analyzing the load curve.However,the performances of previous widely-used LC clustering methods are poor in two folds:larger number of clusters,huge variances within a cluster(a CP is extracted from a cluster),bringing huge difficulty to understand the electricity consumption pattern of customers.In this paper,to improve the performance of LC clustering,a clustering framework incorporated with community detection is proposed.The framework includes three parts:network construction,community detection,and CP extraction.According to the cluster validity index(CVI),the integrated approach outperforms the previous state-of-the-art method with the same amount of clusters.And the approach needs fewer clusters to achieve the same performance measured by CVI. | 黄运有 Wang Nana Hao Tianshu Guo Xiaoxu Luo Chunjie Wang Lei Ren Rui Zhan Jianfeng | 2021 | High Technology Letters2021，27，1： | 0 |
| 13 | Research Progress of Using Phage Display Technology to Screen Virus Affinity Peptides显示文摘Development and application of phage display technology and research progress of virus affinity peptide were summarized in the paper,and a preliminary outlook for future development was put forward. The paper laid a foundation for development of polypeptide drugs and polypeptide vaccine. | Zhang Nana Zheng Guanmin Wang Fangyu Ren Tingting Hao Huifang Zhang Yifang Zhang Gaiping Lu Qingxia | 2016 | Animal Husbandry and Feed Science2016，8，4： | 0 |
| 14 | Dimethyl sulfoxide-aided copper(0)-catalyzed intramolecular decarbonylative rearrangement of N-aryl isatins leading to acridones显示文摘Described here is the first example of Cu(0)-catalyzed intramolecular decarbonylative rearrangements of readily available N-aryl isatins assisted by solvent dimethyl sulfoxide(DMSO)under air atmosphere and additive-free conditions leading to various biologically important acridones in good to excellent yields.This novel transformation is proposed to go through a sequential DMSO-aided Cu insertion into the amide C-N bond,CO extrusion,Cu migration,reductive elimination and DMSO-aided proton migration processes,involving multiple types of bond cleavage and formation in a single chemical step. | Hao Wu Nana Ma Mengxiao Song Guisheng Zhang | 2020 | Chinese Chemical Letters2020，31，6： | 0 |
| 15 | Anion cascade reactions Ⅲ:Synthesis of 3-isoquinuclidone bridged polycyclic lactams显示文摘Bridged polycyclic lactams are important structural units in organic functional materials,natural products,and pharmaceuticals.A flexible and efficient anion cascade reaction was developed for the preparation of bridged polycyclic lactams from readily available malonamides and 1,4‑dien-3-ones.Various highly substituted bridged polycyclic lactams were synthesized in good to excellent yields by tandem nucleophilic sequences in the presence of t BuOK in commercially available EtOH solvent at 60℃.Notably,the simple reactions can be run on a gram scale.Mechanistically,bis-Michael addition reaction and hemiaminalization reactions are involved in the tandem transformation. | Zhiguo Zhang Bingbing Shi Xiyang Cao Nana Ma Hao Wu Xingjie Zhang Guisheng Zhang | 2024 | Chinese Chemical Letters2024，35，2： | 0 |
| 16 | Versatile functionalization of amylopectin for effective biomedical applications显示文摘Successful gene vectors should be with high transfection efficiency and minimal cytotoxicity. Natural polysaccharides, due to their good biocompatibility and biodegradability, have been widely studied and applied. Amylopectin is one of polysaccharides with dendritic structure and numerous hydroxyl groups that could be used for subsequent modification. In this work, a series of dendritic cationic gene vectors comprising amylopectin backbones and poly(2-(dimethylamino) ethyl methacrylate)(PDMAEMA) side chains with different lengths(termed as AMY-PDs) were readily prepared by atom transfer radical polymerization(ATRP). The gene condensation ability, cytotoxicity and gene transfection of AMY-PDs carriers were investigated. In comparison with 'gold-standard' poly(ethyleneimine)(PEI, 25 k Da), the AMY-PDs exhibited higher transfection efficiency with lower cytotoxicity. AMY-PDs could be further modified with Au nanoparticles(termed as AMY-PD@Au). The potential of the AMY-PD@Au vectors to be utilized as a CT contrast agent for imaging of cancer cells was investigated. Such AMY-PD@Au vectors may realize gene therapy with the ability of real-time imaging. | Ranran Wang Hao Hu Qin Cai Nana Zhao Yun Zhu Fujian Xu | 2015 | Science China Chemistry2015，58，9： | 0 |
| 17 | Atomically Dispersed Fe on Nanosheet-linked, Defect-rich, Highly N-Doped 3D Porous Carbon for Efficient Oxygen Reduction显示文摘Exploring cost-effective and high-performance oxygen reduction reaction(ORR)electrocatalysts to replace precious platinum-based materials is crucial for developing electrochemic al energy conversion devices but remains a great challenge.Herein,Fe single atoms anchored on nanosheet-linked,defect-rich,highly N-doped 3D porous carbon(Fe-SAs/NLPC)electrocatalysts wer obtained by pyrolyzing saltsealed Fe-doped zeolitic imidazolate frameworks(ZIFs).NaCl functions both as pore-forming agent and closed nanoreactor,which can not only lead to the formation of defects-rich three-dimensional interconnected structures with high N-doping content to expose abundant active sites,promote mass transfer and electron transfer,but also facilitate the effective incorporation of Fe to form Fe-N,active sites without aggregation.These unique characteristics render Fe-SAs/NLPC outstanding electrocatalytic activity for ORR,with one-set potential of 0.96V and high kinetic current density(jK)of 33.32mA/cm^2 in alkaline medium,which surpass the values of most nonprecious-metal catalysts and even commercial Pt/C. | WANG Yuqing TAO Li CHEN Ru LI Hao SU Hui ZHANG Nana LIU Qinghua WANG Shuangyin | 2020 | Chemical Research in Chinese Universities2020，36，3： | 0 |
| 18 | Nuclear translocation of OsMADS25 facilitated by OsNAR2.1 in reponse to nitrate signals promotes rice root growth by targeting OsMADS27 and OsARF7显示文摘Nitrate is an important nitrogen source and signaling molecule that regulates plant growth and development.Although several components of the nitrate signaling pathway have been identified,the detailed mechanisms are still unclear.Our previous results showed that OsMADS25 can regulate root development in response to nitrate signals,but the mechanism is still unknown.Here,we try to answer two key questions:how does OsMADS25 move from the cytoplasm to the nucleus,and what are the direct target genes activated by OsMADS25 to regulate root growth after it moves to the nucleus in response to nitrate?Our results demonstrated that OsMADS25 moves from the cytoplasm to the nucleus in the presence of nitrate in an OsNAR2.1-dependentmanner.Chromatin immunoprecipitation sequencing,chromatin immunoprecipitation qPCR,yeast one-hybrid,and luciferase experiments showed that OsMADS25 directly activates the expression of OsMADS27 and OsARF7,which are reported to be associated with root growth.Finally,OsMADS25-RNAi lines,the Osnar2.1 mutant,and OsMADS25-RNAi Osnar2.1 lines exhibited significantly reduced root growth compared with the wild type in response to nitrate supply,and expression of OsMADS27 and OsARF7 was significantly suppressed in these lines.Collectively,these results reveal a new mechanismby which OsMADS25 interacts with OsNAR2.1.This interaction is required for nuclear accumulation of OsMADS25,which promotes OsMADS27 and OsARF7 expression and root growth in a nitratedependent manner. | Junyu Wu Shuaiqi Yang Nana Chen Qining Jiang Linli Huang Jiaxuan Qi Guohua Xu Lisha Shen Hao Yu Xiaorong Fan Yinbo Gan | 2023 | Plant Communications2023，4，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员