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| 1 | Agronomical selection on loss-of-function of GIGANTEA simultaneously facilitates soybean salt tolerance and early maturity显示文摘Salt stress and flowering time are major factors limiting geographic adaptation and yield productivity in soybean(Glycine max).Although improving crop salt tolerance and latitude adaptation are essential for efficient agricultural production,whether and how these two traits are integrated remains largely unknown.Here,we used a genome-wide association study to identify a major salt-tolerance locus controlled by E2,an ortholog of Arabidopsis thaliana GIGANTEA(GI).Loss of E2 function not only shortened flowering time and maturity,but also enhanced salt-tolerance in soybean.E2 delayed soybean flowering by enhancing the transcription of the core flowering suppressor gene E1,thereby repressing Flowering Locus T(FT)expression.An E2 knockout mutant e2^(CR) displayed reduced accumulation of reactive oxygen species(ROS)during the response to salt stress by releasing peroxidase,which functions in ROS scavenging to avoid cytotoxicity.Evolutionary and population genetic analyses also suggested that loss-of-function e2 alleles have been artificially selected during breeding for soybean adaptation to high-latitude regions with greater salt stress.Our findings provide insights into the coupled selection for adaptation to both latitude and salt stress in soybean;and offer an ideal target for molecular breeding of early-maturing and salt-tolerant cultivars. | Lidong Dong Zhihong Hou Haiyang Li Zhaobo Li Chao Fang Lingping Kong Yongli Li Hao Du Tai Li Lingshuang Wang Milan He Xiaohui Zhao Qun Cheng Fanjiang Kong Baohui Liu | 2022 | Journal of Integrative Plant Biology2022，64，10： | 3 |
| 2 | Anion Exchange Membrane Based on Interpenetrating Polymer Network with Ultrahigh Ion Conductivity and Excellent Stability for Alkaline Fuel Cell显示文摘A high-performance anion exchange membrane(AEM)is critical for the development of alkaline fuel cell.In this work,AEMs with an interpenetrating polymer network(IPN)are synthesized.An electron microscope clearly reveals a highly efficient“ion channel”network,which is constructed with a small amount of cation exchange groups.This specially designed ion channel leads to extraordinary hydroxide conductivity(e.g.,257.8 mS cm^(-1) at 80℃)of IPN AEMs at moderate ion exchange capacity(IEC=1:75 mmol g^(-1)),as well as excellent long-term alkaline stability at harsh condition which showed that 81%of original conductivity can be retained after a long time for 1248 hours.Moreover,a remarkable peak power density of 1.20 Wcm^(-2)(0.1 MPa backpressure)with nonprecious metal(FeNx-CNTs)as oxygen reduction reaction(ORR)catalyst in a fuel cell test was achieved.This work offers a general strategy to prepare high-performance AEMs based on IPN structure design. | Lingping Zeng Qian He Yunchuan Liao Shangyi Kuang Jianchuan Wang Wei Ding Qiang Liao Zidong Wei | 2020 | Research2020，，1： | 2 |
| 3 | Wide-field aurora imager onboard Fengyun satellite:Data products and validation显示文摘New observations of auroras based on the wide-field aurora imager(WAI)onboard Fengyun-3D(FY-3D)satellite are exhibited in this paper.Validity of the WAI data is analyzed by comparing auroral boundaries derived from WAI observations with results obtained from data collected by the Special Sensor Ultraviolet Spectrographic Imager(SSUSI)aboard the Defense Meteorological Satellite Program(DMSP F18).Dynamic variations of the aurora with the solar wind,interplanetary magnetic field(IMF)parameters,and the SYM-H index are also investigated.The comparison of auroral boundaries indicates that the WAI data are morphologically valid and suitable to the study of auroral dynamics.Effective responses to solar wind parameters indicate that the WAI data can be useful to monitor and predict the Earth’s space weather.Since the configuration of aurora is a good indicator of the solar wind–magnetosphere–ionosphere(SW-M-I)coupling system,and can reflect the disturbance of the space environment,the WAI will provide important data to help us to study the physical processes in space. | GuangXing Ding JiaWei Li XiaoXin Zhang Fei He LingPing He KeFei Song Liang Sun Shuang Dai ShiJie Liu Bo Chen Chao Yu XiuQing Hu SongYan Gu ZhongDong Yang Peng Zhang | 2021 | Earth and Planetary Physics2021，5，1： | 1 |
| 4 | A New Post-hoc Flat Field Measurement Method for the Solar X-Ray and Extreme Ultraviolet Imager Onboard the FengYun-3E Satellite显示文摘Extreme ultraviolet(EUV)observations are widely used in solar activity research and space weather forecasting since they can observe both the solar eruptions and the source regions of the solar wind.Flat field processing is indispensable to remove the instrumental non-uniformity of a solar EUV imager in producing high-quality scientific data from original observed data.FengYun-3E(FY-3E)is a meteorological satellite operated in a Sunsynchronous orbit,and the routine EUV imaging data from the Solar X-ray and Extreme Ultraviolet Imager(X-EUVI)onboard FY-3E has the characteristic of concentric rotation.Taking advantage of the concentric rotation,we propose a post-hoc flat field measurement method for its EUV 195A channel in this paper.This method removes the small-scale and time-varying component of coronal activities by taking the median value for each pixel along the time axis of a concentric rotation data cube,and then derives the large-scale and invariable component of the quiet coronal radiation,and finally generates a flat field image.The flat field can be generated with cadences from hundreds of minutes(one orbit)to several days.Higher flat field accuracy can be achieved by employing more data.Further analysis shows that our method is able to measure the instrumental spot-like nonuniformity possibly caused by contamination on the detector,which mostly disappears after the in-orbit selfcleaning process.It can also measure the quasi-periodic grid-like non-uniformity,possibly from the obscuration of the support mesh on the rear filter.After flat field correction,these instrumental non-uniformities from the original data are effectively removed.Moreover,the X-EUVI 195A data after dark and flat field corrections are consistent with the 193A imaging data from the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory,verifying the suitability of the method.The post-hoc method does not occupy observation time,which is advantageous for space weather operations.Our method is not only suitable for FY-3E/X-EUVI but also a candidate method for the flat field measurement of future solar EUV telescopes. | Qiao Song Xianyong Bai Bo Chen Xiuqing Hu Yajie Chen Zhenyong Hou Xiaofan Zhang Lingping He Kefei Song Peng Zhang Jing-Song Wang Xiaoxin Zhang Weiguo Zong Jinping Dun Hui Tian Yuanyong Deng | 2022 | Research in Astronomy and Astrophysics2022，22，10： | 0 |
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