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Anther Endothecium-Derived Very-Long-Chain Fatty Acids Facilitate Pollen Hydration in Arabidopsis

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Molecular Plant 2018年第8期11卷 1101-1104页

作者： huadong zhan Haibo Xiong Shui Wang Zhong-Nan Yang College of Life and Environment Sciences Shanghai Normal University Shanghai 200234 China GAS Center for Excellence in Molecular Plant Sciences InstLtute of Plant Physiology and Ecology Chinese Academy of Sciences Shanghai 200032 China

Dear Editor,Pollen hydration is a prerequisite for pollen germination and sub- sequent pollen tube growth. As a result of two decades of biochemical studies and genetic identification of the eceriferum （cer） male-sterile mutants, the very-long-chain fatty acid （VLCFA） lipids in the pollen coat have been well known to play a critical role in pollen hydration （Preuss et al., 1993; Fiebig et al., 2000; Hiscock and Allen, 2008）.

关键词： Arabidopsis 潜水艇花粉内层花药类脂化合物生物化学基因鉴定

Phenylpropanoid Derivatives Are Essential Components of Sporopollenin in Vascular Plants

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Molecular Plant 2020年第11期13卷 1644-1653页

作者： Jinp-Shi Xue Baocai zhang huadong zhan Yong-Lin Lv Xin-Lei Jia TianHua Wang Nai-Ying Yang Yu-Xia Lou Zai-Bao zhang Wen-Jing Hu Jinshan Gui Jianguo Cao Ping Xu Yihua Zhou Jin-Feng Hu Laigeng Li Zhong-Nan Yang Shanghai Key Laboratory of Plant Molecular Sciences College of Life SciencesShanghai Normal UniversityShanghai 200234China National Key Laboratory of Plant Molecular Genetics&CAS Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and EcologyChinese Academy of SciencesBeijing 200032China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Crop Genetics and Germplasm Enhancement College of AgricultureNanjing Agricultural UniversityNanjing 210095China College of Life Science Xinyang Normal UniversityXinyangHenan 464000China Department of Natural Products Chemistry School of PharmacyFudan UniversityNo.826 Zhangheng RoadShanghai201203China

The outer wall of pollen and spores,namely the exine,is composed of sporopollenin,which is highly resistant to chemical reagents and *** this study,we demonstrated that phenylpropanoid pathway derivatives are essential components of sporopollenin in seed *** analyses showed that the autofluorescence of Lilium and Arabidopsis sporopollenin is similar to that of *** and NMR analyses of pollen from Lilium and Cryptomeria further revealed that the sporopollenin of seed plants contains phenylpropanoid derivatives,including p-hydroxybenzoate(p-BA),p-coumarate(p-CA),ferulate(FA),and lignin guaiacyl(G)*** phenylpropanoid pathway is expressed in the tapetum in Arabidopsis,consistent with the fact that the sporopollenin precursor originates from the *** germination and comet assays showed that this pathway plays an important role in protection of pollen against UV *** the pteridophyte plant species Ophioglossum vulgatum and Lycopodium clavata,phenylpropanoid derivatives including p-BA and p-CA were also detected,but G units were *** together,our results indicate that phenylpropanoid derivatives are essential for sporopollenin synthesis in vascular *** addition,sporopollenin autofluorescence spectra of bryophytes,such as Physcomitrella and Haplocladium,exhibit distinct characteristics compared with those of vascular plants,indicating the diversity of sporopollenin among land plants.

关键词： sporopollenin pollen cell wall phenylpropanoid pathway

Vertical accuracy assessment of freely available digital elevation models over low-lying coastal plains

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International Journal of Digital Earth 2016年第3期9卷 252-271页

作者： Xiaoping Du huadong Guo Xiangtao Fan Junjie Zhu Zhenzhen Yan Qin zhan Key Laboratory of Digital Earth Institute of Remote Sensing and Digital Earth(RADI)Chinese Academy of Sciences(CAS)BeijingChina University of Chinese Academy of Sciences BeijingChina

The frequency of coastal flood damages is expected to increase significantly during the twenty-first century as sea level rises in the coastal *** digital elevation model(DEM)data describing coastal topography are essential for assessing future flood-related damages and understanding the impacts of sea-level *** Shuttle Radar Topography Mission(SRTM)and Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model(ASTER GDEM)are currently the most accurate and freely available DEM ***,an accuracy assessment specifically targeted at DEMs over low elevation coastal plains is *** present study focuses on these areas to assess the vertical accuracy of SRTM and ASTER GDEM using Ice,Cloud,and land Elevation Satellite,Geoscience Laser Altimeter System(ICESat/GLAS)and Real Time Kinematic(RTK)Global Positioning System(GPS)field survey *** findings show that DEM accuracy is much better than the mission specifications over coastal *** addition,optical remote sensing image analysis further reveals the relationship between DEM vertical accuracy and land cover in these *** study provides a systematic approach to assess the accuracy of DEMs in coastal zones,and the results highlight the limitations and potential of these DEMs in coastal applications.

关键词： DEM ICESat/GLAS SRTM ASTER GDEM elevation accuracy coastal flood modelling

Robustness and fault detection in power systems based on parameter-dependent Lyapunov functions

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Robustness and fault detection in power systems based on par...

Chemical Constituents from Ilex cornuta

第25届中国控制与决策会议

作者： Shiyun Xu huadong Sun Jun Yi Bing Zhao zhan-Ming Chen China Electric Power Research Institute Renmin University of China

ISBN: (纸本)9781467355339

In power systems, it is inevitable for faults and disturbances to happen, and the robust fault detection of power systems has become the focus of researchers in recent years. Since power systems do not generally have only one typical operating condition, the polytopic model provides a description of the uncertain system operation with a better physical meaning. To this end, the present study investigates the fault detection problem for uncertain polytopic power system model. In order to reduce the conservativeness of existing conditions, we present an efficient algorithm by generating homogeneous polynomial parameter-dependent Lyapunov functions of arbitrary degree on the uncertain parameters, which includes as special cases existing conditions for RFDF design. It can be established that as the degree of the polynomial increases, the number of LMIs and free variables increases and the test becomes less conservative. The methodology proposed can possibly be applied to relevant aspects such as improving the dynamic stability and robustness of power systems.

关键词： Power system Dynamic stability Robustness Fault detection Linear matrix inequalities (LMIs)

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Chemical Constituents from Ilex cornuta

是“毒药”还是“良药”——论社会记忆档案化与档案记忆社会化的互化交融

中国化学会第十一届全国天然有机化学学术会议

作者： Guifeng Liu huadong Wu Haixia zhan Huifang Pi School of Pharmacy Tongji Medical CollegeHuazhong University of Science and TechnologyHubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation

Ilex cornuta,one of the species in the Ilex genus of the Aquifoliaceae family,can invigorate the liver and the kidney,expel wind and *** new compounds,3β-O-α-DXylopyr-anosly-(1→3)-α-L-2-O-acetylarabinopyranosyl-(1→2)-β-D-glucopyranosyl-19α,23-dihydr-oxy-20α-urs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester(1),3β-O-α-Dxylo-pyran-osly-(1→3)-α-L-2-O-acetylarabinopyranosyl-(1→2)-β-D-glucopyrano-syl-23-hydroxyl-20α-urs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester(2),together with 15 known compounds were isolated from this *** structures were determined by means of extensive spectroscopic analysis and comparison with previously reported data.

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档案学研究 2020年第5期 19-25页

作者：丁华东陈展杨寅上海大学图书情报档案系上海200444

社会记忆档案化是将社会记忆以档案的方式加以留存,档案记忆社会化则是将档案留存的记忆重新转化为社会共享的记忆。两者是一种双向转化的行为、过程和结果,需要我们超越单向度的思维,在社会记忆再生产的统一性中把握双方的互化融合,认... 详细信息

社会记忆档案化是将社会记忆以档案的方式加以留存,档案记忆社会化则是将档案留存的记忆重新转化为社会共享的记忆。两者是一种双向转化的行为、过程和结果,需要我们超越单向度的思维,在社会记忆再生产的统一性中把握双方的互化融合,认识到它们是"良药",而非"毒药"。

关键词：社会记忆档案记忆记忆再生产记忆转化

超声造影在声脉冲辐射力诊断“灰带”甲状腺结节诊断中的价值

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中国超声医学杂志 2015年第12期31卷 1061-1063页

作者：詹嘉朱隽柴启亮刁雪红陈悦复旦大学附属华东医院超声科

目的探讨超声造影技术在声脉冲辐射力(ARFI)诊断'灰带'甲状腺结节诊断中的价值。方法对70例行甲状腺切除手术患者的200个甲状腺结节,术前行声脉冲辐射力检查。其中40个VS值在2.5~3.0m/s之间甲状腺结节良恶性鉴别困难者(简称'灰带'结节)... 详细信息

目的探讨超声造影技术在声脉冲辐射力(ARFI)诊断'灰带'甲状腺结节诊断中的价值。方法对70例行甲状腺切除手术患者的200个甲状腺结节,术前行声脉冲辐射力检查。其中40个VS值在2.5~3.0m/s之间甲状腺结节良恶性鉴别困难者(简称'灰带'结节)行超声造影。结果 ARFI对200个甲状腺结节的诊断准确率为82%(164/200),其中40个声脉冲辐射力诊断'灰带'甲状腺结节诊断准确率为70%(28/40),超声造影对40个声脉冲辐射力诊断'灰带'甲状腺结节诊断准确率为90%(36/40),两种方法诊断准确率之间有显著差异(P<0.05)。结论超声造影对于声脉冲辐射力诊断'灰带'甲状腺结节有着更高的诊断准确率,在临床工作中,可以作为ARFI的补充。

关键词：超声造影声脉冲辐射力灰带甲状腺结节

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安徽淮河以北地区出土周代青铜容器简论

考古与文物 2021年第6期 67-73页

作者：朱华东安徽大学历史学院

安徽淮河以北地区出土的周代青铜容器,器形有鼎、簋、鬲、盨、簠、盘、匜、盉等。其年代主体可分为三个阶段:第一阶段属西周中期偏晚至春秋早期偏早,有五河台子山鼎、太和胡窑组、宿州谢芦村组,器形有鼎、簋、鬲、盨、匜、盘等;第二阶... 详细信息

安徽淮河以北地区出土的周代青铜容器,器形有鼎、簋、鬲、盨、簠、盘、匜、盉等。其年代主体可分为三个阶段:第一阶段属西周中期偏晚至春秋早期偏早,有五河台子山鼎、太和胡窑组、宿州谢芦村组,器形有鼎、簋、鬲、盨、匜、盘等;第二阶段主体为春秋中期,有利辛管台子组、泗县组,器形有鼎、鬲、盉等;第三阶段主要为春秋晚期偏早阶段,有蒙城小涧组,器形有鼎、簠、盏、匜等。

关键词：淮河以北周代青铜容器

TSNAdb v2.0:The Updated Version of Tumor-specific Neoantigen Database

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Genomics, Proteomics & Bioinformatics 2023年第2期21卷 259-266页

作者： Jingcheng Wu Wenfan Chen Yuxuan Zhou Ying Chi Xiansheng Hua Jian Wu Xun Gu Shuqing Chen zhan Zhou Institute of Drug Metabolism and Pharmaceutical Analysis and Zhejiang Provincial Key Laboratory of Anti-Cancer Drug Research College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China Alibaba-Zhejiang University Joint Research Center of Future Digital Healthcare Alibaba DAMO AcademyHangzhou 311121China The Second Affiliated Hospital of School of Medicine and School of Public HealthZhejiang UniversityHangzhou 310058China Innovation Institute for Artificial Intelligence in Medicine Zhejiang UniversityHangzhou 310018China Department of Genetics Development and Cell BiologyIowa State UniversityAmesIA 50011USA

In recent years,neoantigens have been recognized as ideal targets for tumor *** the development of neoantigen-based tumor immunotherapy,comprehensive neoantigen databases are urgently needed to meet the growing demand for clinical *** have built the tumor-specific neoantigen database(TSNAdb)previously,which has attracted much *** this study,we provide TSNAdb v2.0,an updated version of the *** v2.0 offers several new features,including(1)adopting more stringent criteria for neoantigen identification,(2)providing predicted neoantigens derived from three types of somatic mutations,and(3)collecting experimentally validated neoantigens and dividing them according to the experimental level.

关键词： Neoantigen Tumor immunotherapy Human leukocyte antigen Somatic mutation Database