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32篇 您的检索式:作者名="ChunXiang Wu"
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1MiR156 regulates anthocyanin biosynthesis through SPL targets and other microRNAs in poplar显示文摘Anthocyanins biosynthesized from the flavonoid pathway are types of pigments that are involved in the protection of poplar from biotic and abiotic stresses.Previous researchers studying anthocyanin-related transcription factors and structural genes in poplar have made significant discoveries.However,little is known about the regulatory role of microRNAs in anthocyanin biosynthesis in poplar.Here,we overexpressed miR156 in poplar to study the comprehensive effects of the miR156-SPL module on the biosynthesis of anthocyanins.Small RNA sequencing analysis revealed 228 microRNAs differentially expressed in transgenic poplar plants with dramatically increased miR156 levels.Furthermore,integrated microRNAomic and transcriptomic analysis suggested that two microRNAs,miR160h,and miR858,have the potential to affect anthocyanin accumulation in poplar by regulating auxin response factors and MYB transcription factors,respectively.Additionally,the accumulation of miR160h and miR858 displayed a positive correlation with miR156 levels,suggesting a possible interaction between the miR156-SPL module and these microRNAs in poplar.Last,metabolomics analysis revealed that the levels of anthocyanins,flavones,and flavonols were substantially elevated in transgenic poplar plants overexpressing miR156 compared with the wild type,whereas the total lignin content was reduced in the transgenic plants.Taken together,our results indicate that miR156 can fine tune the anthocyanin biosynthetic pathway via multiple factors,including microRNAs,transcription factors,and the levels of structural genes,in poplar.This provides additional clues for understanding the complex regulatory network of anthocyanin biosynthesis in woody plants.Yamei Wang Wenwen Liu Xinwei Wang Ruijuan Yang Zhenying Wu HanWang LeiWang Zhubing Hu Siyi Guo Hailing Zhang Jinxing Lin Chunxiang Fu 2020Horticulture Research2020,7,1:9
2Regional and Global Land Data Assimilation Systems: Innovations,Challenges, and Prospects显示文摘Since the North American and Global Land Data Assimilation Systems(NLDAS and GLDAS) were established in2004, significant progress has been made in development of regional and global LDASs. National, regional, projectbased, and global LDASs are widely developed across the world. This paper summarizes and overviews the development, current status, applications, challenges, and future prospects of these LDASs. We first introduce various regional and global LDASs including their development history and innovations, and then discuss the evaluation, validation, and applications(from numerical model prediction to water resources management) of these LDASs. More importantly, we document in detail some specific challenges that the LDASs are facing: quality of the in-situ observations, satellite retrievals, reanalysis data, surface meteorological forcing data, and soil and vegetation databases; land surface model physical process treatment and parameter calibration; land data assimilation difficulties; and spatial scale incompatibility problems. Finally, some prospects such as the use of land information system software, the unified global LDAS system with nesting concept and hyper-resolution, and uncertainty estimates for model structure,parameters, and forcing are discussed.Youlong XIA Zengchao HAO Chunxiang SHI Yaohui LI Jesse MENG Tongren XU Xinying WU Baoqing ZHANG 2019Journal of Meteorological Research2019,33,2:7
3In-situ Formed AIN Particulates and TiN Whiskers Mixture Reinforced Al Composite显示文摘Chunxiang CUI Renjie WU and Guoding ZHANG (Institute of Composite Materials, Shanghai Jiao Tong University, Shanghai 200030, China) 1996Journal of Materials Science & Technology1996,12,5:6
4Heat-induced Internal Strain Relaxation and its Effect on the Microstructure of Polyacrylonitrile-based Carbon Fiber显示文摘The transformation of the internal strain and its effect on the microstructure of polyacrylonitrile-based carbon fiber during the high-temperature graphitization were investigated.The internal compressive strain within the carbon turbostratic structure was confirmed through a careful analysis by wide-angle X-ray diffraction and Raman spectroscopy.Heat-induced strain/stress relaxation along the fiber axis was observed and was found to have a profound effect on the structure of both the crystallites and microvoids.The results indicated that,the relaxation of residual strain changed the graphite layers from a wrinkled and distorted morphology to a straight and smooth one,and consequently led the crystallites to stack closely and orderly with increasing stack height.The strain relaxation also changed the morphology of crystallites and microvoids,resulting in an anisotropic growth for the latters.Denghua Li Chunxiang Lu Gangping Wu Yu Yang Zhihai Feng Xiutao Li Feng An Baoping Zhang 2014Journal of Materials Science & Technology2014,30,10:5
5Detection and Initial Response to a Type 2 Vaccine-Derived Poliovirus—Sichuan Province,China,2019显示文摘What is already known about this topic?After the type 2 strain of the live,attenuated poliovirus vaccine was withdrawn globally in 2016,any identification of a type 2 poliovirus is a Public Health Emergency of International Concern.A vaccinederived type 2 poliovirus(VDPV2)was identified in Sichuan,prompting an urgent,comprehensive investigation and response.What is added by this report?Type 2 monovalent,live,attenuated oral poliovirus vaccine(mOPV2)is being used to respond to the numerous VDPV2 outbreaks seen around the world.In contrast,the response in Sichuan used Sabin strain inactivated poliovirus(sIPV)to stop circulation of the VDPV2.In the 6 months following the vaccination response,there have been no VDPV2s detected in Sichuan,despite extensive search.What are the implications for public health practices?Further search for the VDPV2 must continue in order to determine whether transmission has been stopped.The ongoing investigation and response to the Sichuan VDPV2 is providing evidence to the Global Polio Eradication Initiative on managing VDPV2 outbreaks.Jiushun Zhou Ning Wen Yong Zhang Qi Qi Chunxiang Fan Dongmei Yan Xiaoping Zhu Lixin Hao Shuangli Zhu Yu Liu Xiaozhen Ma Chao Ma Lei Nan Yong Chen Qianli Ma Cheng Wang Kun Deng Lei Cao Ge Shao Xianxiang Ding Hong Yang Zhijie An Lance ERodewald Aiqiang Xu Huaqing Wang Zijian Feng Zundong Yin Xianping Wu Wenbo Xu 2020China CDC weekly2020,2,11:3
6In-situ Synthesis and Formation Mechanism ofTiN-Al_2O_3/Al Composite显示文摘The synthesis of TiN and Al2O3 by in situ injection of reactive nitrogen gas into molten Al alloys has been evaluated over the temperature range from 1000 to 1600℃. It is shown that TiN and Al2O3 can be formed in melt with nitrogen and surplus oxygen (in vacuum room of the induction furnace) as the reactive gases over 1000℃. Up to 2.1 wt pct Al2O3 and 5.2 wt pct of TiN in situ phases in an Al alloy has been formed in a range of size from 0.8 to 5 μm. The formation mechanism of TiN and Al2O3 is discussed in this paper.Chunxiang CUP and Renjie WU (State Key Lab. for MMCs, Shanghai Jiaotong University, Shanghai 200030, China)Jianran YAN and Guobin LI (Hebei Polytechnic University Tianjin 300132, China) 1998Journal of Materials Science & Technology1998,14,1:2
7Cryptanalysis and Improvement of a New Certificateless Signature Scheme in the Standard Model显示文摘Digital signature,as an important cryptographic primitive,has been widely used in many application scenarios,such as e-commerce,authentication,cloud computing,and so on.Certificateless Public Key Cryptography(PKC)can get rid of the certificate management problem in the traditional Public Key Infrastructure(PKI)and eliminate the key-escrow problem in the identity-based PKC.Lately,a new Certificateless Signature(CLS)scheme has been proposed by Kyung-Ah Shim(IEEE SYSTEMS JOURNAL,2018,13(2)),which claimed to achieve provable security in the standard model.Unfortunately,we present a concrete attack to demonstrate that the scheme cannot defend against the Type I adversary.In this type of attack,the adversary can replace the public key of the signer,and then he plays the role of the signer to forge a legal certificateless signature on any message.Furthermore,we give an improved CLS scheme to resist such an attack.In terms of the efficiency and the signature length,the improved CLS is preferable to the original scheme and some recently proposed CLS schemes in the case of precomputation.Chenhuang Wu Hui Huang Kun Zhou Chunxiang Xu 2021China Communications2021,18,1:1
8Improved Assimilation of Fengyun-3 Satellite-Based Snow Cover Fraction in Northeastern China显示文摘Assimilation of snow cover is an important method to improve the accuracy of snow simulation. However, the effects of snow assimilation are poor because satellite observed snow cover data contain erroneous information, such as cloud contamination. In this paper, an improved approach is proposed to reduce the effects of observational errors during assimilation of snow cover fraction acquired by the Fengyun-3(FY-3) satellite in northeastern China. A snow depth constraint was imposed on quality control of a snow depth product from a microwave radiation imager. The assimilation experiments were carried out before and after quality control(denoted as SCFDA and SCFDA_WSD, respectively). The snow cover fraction results were evaluated against the Moderate Resolution Imaging Spectroradiometer(MODIS) snow cover products. When assimilating the snow cover fraction with the snow depth constraint(i.e., SCFDA_WSD), substantially larger improvement was obtained than that without such a constraint/quality control(SCFDA), and the deviation and root mean square error of the snow cover fraction were significantly reduced.The assimilation performance was also evaluated against in-situ snow depth observations. The SCFDA_WSD also showed greater improvements during the snow accumulation and snowmelt periods than the SCFDA. The SCFDA_WSD improvements in woodland and shrubland were the most obvious. At different altitudes, the effects of the SCFDA_WSD were basically equivalent, and the deeper the snow depth was, the better the effect. In addition, the SCFDA_WSD method was found in close agreement with the observations during a sudden snowfall event.Shuai ZHANG Chunxiang SHI Runping SHEN Jie WU 2019Journal of Meteorological Research2019,33,5:1
9Effects of various metals and their loading methods on the mesopore formation in pitch-based spherical activated carbon显示文摘Zhichang Liu Licheng Ling Wenming Qiao Chunxiang Lu Dong Wu Lang Liu 1999Carbon1999,37,8:1
10Acoustic aligning and trapping of microbubbles in an enclosed PDMS microfluidic device显示文摘Long Meng Feiyan Cai Qiaofeng Jin Lili Niu Chunxiang Jiang Zhanhui Wang Junru Wu Hairong Zheng 2011Sensors & Actuators: B Chemical2011,,1:1
11d(GC)n repeats form Z-DNA within promoter region and repress the promoter activity in Escherichia coil显示文摘Shenghe Huang Chuxin Wu Dongming Li Haizhou Wang Zechang Rao Qiling Shen Chunxiang Chen Yong Liu Xun Xu Chengyu Hu 2015Acta Biochimica et Biophysica Sinica2015,47,7:1
12The electrical and material properties of HfOxNy dielectric on germanium substrate 显示文摘Zhang Qingchun Wu Nan Zhu Chunxiang 2004Japan J Appl Phys2004,43,:1
13Volatiles of grape berries evaluated at the germplasm level by headspace-SPME with GC–MS显示文摘Chunxiang Yang Yiju Wang Zhenchang Liang Peige Fan Benhong Wu Liu Yang Younian Wang Shaohua Li 2008Food Chemistry2008,,3:1
14The clinical outcomes of late preterm infants: a multi-center survey of Zhejiang, China显示文摘Xiaolu Ma Chunxiang Huang Shouzeng Lou Qin Lv Weidong Su Jiarong Tan Youcheng Wang Xinxin Wang Mingyuan Wu Ting Xu Manli Zhuang Lizhong Du the Provincial Collaborative Study Group for Late-preterm Infants 2009Journal of Perinatal Medicine2009,,6:1
15Volatile compounds evolution of three table grapes with different flavour during and after maturation显示文摘Chunxiang Yang Yiju Wang Benhong Wu Jinbao Fang Shaohua Li 2010Food Chemistry2010,,4:1
16Effects of various metals and their loading methods on the mesopore formation in pitch-based spherical activated carbon显示文摘Zhichang Liu Licheng Ling Wenming Qiao Chunxiang Lu Dong Wu Lang Liu 1999Carbon1999,37,:1
17Removal of strontium(II) ions by potassium tetratitanate whisker and sodium trititanate whisker from aqueous solution: Equilibrium, kinetics and thermodynamics显示文摘Wei Guan Jianming Pan Hongxiang Ou Xue Wang Xiaohua Zou Wei Hu Chunxiang Li Xiangyang Wu 2010Chemical Engineering Journal2010,,1:1
18Overexpression of PvWOX3a in switchgrass promotes stem development and increases plant height显示文摘Switchgrass(Panicum virgatum L.)is an important perennial,noninvasive,tall ornamental grass that adds color and texture to gardens and landscapes.Moreover,switchgrass has been considered a forage and bioenergy crop because of its vigorous growth,low-input requirements,and broad geography.Here,we identified PvWOX3a from switchgrass,which encodes a WUSCHEL-related homeobox transcription factor.Transgenic overexpression of PvWOX3a in switchgrass increased stem length,internode diameter,and leaf blade length and width,all of which contributed to a 95%average increase in dry weight biomass compared with control plants.Yeast one-hybrid and transient dual-luciferase assays showed that PvWOX3a can repress the expression of gibberellin 2-oxidase and cytokinin oxidase/dehydrogenase through apparently direct interaction with their promoter sequences.These results suggested that overexpression of PvWOX3a could increase gibberellin and cytokinin levels in transgenic switchgrass plants,which promotes cell division,elongation,and vascular bundle development.We also overexpressed PvWOX3a in a transgenic miR156-overexpressing switchgrass line that characteristically exhibited more tillers,thinner internodes,and narrower leaf blades.Double transgenic switchgrass plants displayed significant increases in internode length and diameter,leaf blade width,and plant height but retained a tiller number comparable to that of plants expressing miR156 alone.Ultimately,the double transgenic switchgrass plants produced 174%more dry-weight biomass and 162%more solubilized sugars on average than control plants.These findings indicated that PvWOX3a is a viable potential genetic target for engineering improved shoot architecture and biomass yield of horticulture,fodder,and biofuel crops.Ruijuan Yang Zhenying Wu Chen Bai Zhichao Sun Mengqi Wang Yuzhu Huo Hailing Zhang Yamei Wang Huapeng Zhou Shaojun Dai Wenwen Liu Chunxiang Fu 2021Horticulture Research2021,8,1:1
19Resveratrol derivative BTM-0512 mitigates obesity by promoting beige remodeling of subcutaneous preadipocytes显示文摘Qingqing Li Kuansong Wang Yipeng Ma Chunxiang Qin Changsheng Dong Ping Jin Yan Wu Xiaoming Xiong Niansheng Li Changping Hu Jun Peng Zhichun Yang 2017Acta Biochimica et Biophysica Sinica2017,49,4:1
20Acoustic aligning and trapping of microbubbles in an enclosed PDMS microfluidic device显示文摘Long Meng Feiyan Cai Qiaofeng Jin Lili Niu Chunxiang Jiang Zhanhui Wang Junru Wu Hairong Zheng 2011Sensors & Actuators: B Chemical2011,,1:1
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