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Ortholog Alleles at Xa3/Xa26 Locus Confer Conserved Race-Specific Resistance against Xanthomonas oryzae in Rice

Molecular Plant 2012年第1期5卷 281-290页

作者： Hong-jing Li Xiang-hua Li jing-hua xiao Rod A.Wing Shi-Ping Wang National Key Laboratory of Crop Genetic Improvement National Center of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan 430070China Arizona Genomics Institute School of Plant SciencesBIO5 InstituteUniversity of ArizonaTucsonAZ 85721USA

The rice disease resistance （R） gene Xa3/Xa26 （having also been named Xa3 and Xa26） against Xanthomonas oryzae pv. oryzae （Xoo）, which causes bacterial blight disease, belongs to a multiple gene family clustered in chromosome 11 and is from an AA genome rice cultivar （Oryza sativa L.）. This family encodes leucine-rich repeat （LRR） receptor kinase- type proteins, Here, we show that the orthologs （alleles） of Xa3/Xa26, Xa3/Xa26-2, and Xa3/Xa26-3, from wild Oryza spe- cies O. officinalis （CC genome） and O. minuta （BBCC genome）, respectively, were also R genes against Xoo. Xa3/Xa26-2 and Xa3/Xa26-3 conferred resistance to 16 of the 18 Xoo strains examined. Comparative sequence analysis of the Xa3/Xa26 families in the two wild Oryza species showed that Xa3/Xa26-3 appeared to have originated from the CC genome of O. minuta. The predicted proteins encoded by Xa3/Xa26, Xa3/Xa26-2, and Xa3/Xa26-3 share 91-99% sequence identity and 94-99% sequence similarity. Transgenic plants carrying a single copy of Xa3/Xa26, Xa3/Xa26-2, or Xa3PXa26-3, in the same genetic background, showed a similar resistance spectrum to a set of Xoo strains, although plants carrying Xa3/Xa26-2 or Xa3/Xa26-3 showed lower resistance levels than the plants carrying Xa3/Xa26. These results suggest that the Xa3/Xa26 locus predates the speciation of A and C genome, which is approximately 7.5 million years ago. Thus, the resistance spec- ificity of this locus has been conserved for a long time.

关键词： Bacterial blight broad-spectrum resistance durable resistance Oryza officinalis Oryza minuta Oryza sativa.

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Synchronization mechanism of clapping rhythms in mutual interacting individuals

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Chinese Physics B 2021年第1期30卷 197-206页

作者： Shi-Lan Su jing-hua xiao Wei-Qing Liu Ye Wu School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China School of Science Jiangxi University of Science and TechnologyGanzhou 341000China Computational Communication Research Center Beijing Normal UniversityZhuhai 519087China School of Journalism and Communication Beijing Normal UniversityBeijing 100875China

In recent years, clapping synchronization between individuals has been widely studied as one of the typical synchronization phenomena. In this paper, we aim to reveal the synchronization mechanism of clapping interactions by observing two individuals’ clapping rhythms in a series of experiments. We find that the two synchronizing clapping rhythm series exhibit long-range cross-correlations(LRCCs);that is, the interaction of clapping rhythms can be seen as a strong-anticipation process. Previous studies have demonstrated that the interactions in local timescales or global matching in statistical structures of fluctuation in long timescales can be sources of the strong-anticipation process. However, the origin of the strong anticipation process often appears elusive in many complex systems. Here, we find that the clapping synchronization process may result from the local interaction between two clapping individuals and may result from the more global coordination between two clapping individuals. We introduce two stochastic models for mutually interacting clapping individuals that generate the LRCCs and prove theoretically that the generation of clapping synchronization process needs to consider both local interaction and global matching. This study provides a statistical framework for studying the internal synchronization mechanism of other complex systems. Our theoretical model can also be applied to study the dynamics of other complex systems with the LRCCs, including finance, transportation, and climate.

关键词： synchronization mechanism clapping rhythm numerical simulation

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Overexpression of a Chloroplast-located Peroxiredoxin Q Gene, SsPrxQ, Increases the Salt and Low-temperature Tolerance of Arabidopsis

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Journal of Integrative Plant Biology 2006年第10期48卷 1244-1249页

作者： Li-Wen jing Shi-hua Chen xiao-Li Guo Hui Zhang Yan-Xiu Zhao Key Laboratory of Plant Stress Research College of Life Sciences Shandong Normal University Jinan 250014 China

Ablotlc stress, such as salt, drought and extreme temperature, can result in enhanced production of reactive oxygen species （ROS）. Plants have developed both enzymatic ROS-scavenging and non-enzymatic ROS-scavenging systems. The major ROS-scavenging enzymes of plants include superoxide dismutase （SOD）, ascorbate peroxldaae （APX）, catalaae （CAT）, glutathione peroxldaae （GPX） and peroxiredoxina （Prxa）. In the present work, we identified a gene encoding chloroplast-located peroxiredoxin Q, SsPrxQ, from Suaeda salsa L. located at chloroplast. Overexpression of SsPrxQ In Arabidopsis leads to an increase In salt and low-temperature tolerance.

关键词： overexpression peroxiredoxin Q salt and low-temperature tolerance suaeda salsa subcellular localization

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Synthesis and Biological Activity of Novel Spin Labeled Derivatives of 4′-Demethyl-4-deoxypodophyllotoxin

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Chemical Research in Chinese Universities 2010年第5期26卷 753-756页

作者： XU jing SUN xiao-hua ZHANG Jia-qiang ZHANG Zhi-wei TIAN Xuan State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China

Seven novel spin labeled derivatives of 4＇-demethyl-4-deoxypodophyllotoxin with nitroxyl radi- cals（TMHPO and TMPRO） were prepared and their cytotoxic and antioxidative activities were tested. Their cytotoxic activities were tested against two tumor cell lines（A-549 and HL-60） in vitro. Among them, five compounds show higher inhibition activity against A-549 cells compared with the clinical drug VP-16（2） and parent compound 4＇-demethyl-4-deoxypodophyllotoxin（DDPT, 6）. Compounds 8, 10 and 13 show excellent inhibition activity against HL-60 cells. Furthermore, the antioxidative activities of them were tested. All the seven spin labeled compounds show stronger antioxidative activity compared with VP-16（2） and DDPT（6）. The partition coefficients P of these derivatives were determined.

关键词： 4'-Demethyl-4-deoxypodophyllotoxin Nitroxyl radical Antiturnor activity Antioxidative activity

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Reconstruction of dynamic structures of experimental setups based on measurable experimental data only

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Chinese Physics B 2018年第3期27卷 177-183页

作者： Tian-Yu Chen Yang Chen Hu-Jiang Yang jing-hua xiao Gang Hu School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China Department of Physics Beijing Normal UniversityBeijing 100875China

Nowadays,massive amounts of data have been accumulated in various and wide fields,it has become today one of the central issues in interdisciplinary fields to analyze existing data and extract as much useful information as possible from *** is often that the output data of systems are measurable while dynamic structures producing these data are hidden,and thus studies to reveal system structures by analyzing available data,i.e.,reconstructions of systems become one of the most important tasks of information *** the past,most of the works in this respect were based on theoretical analyses and numerical *** analyses of experimental data are very *** physical science,most of the analyses of experimental setups were based on the first principles of physics laws,i.e.,so-called top-down *** this paper,we conducted an experiment of"Boer resonant instrument for forced vibration"(BRIFV)and inferred the dynamic structure of the experimental set purely from the analysis of the measurable experimental data,i.e.,by applying the bottom-up *** of the experimental set is strongly nonlinear and chaotic,and it's subjects to inevitable *** proposed to use high-order correlation computations to treat nonlinear dynamics;use two-time correlations to treat noise *** applying these approaches,we have successfully reconstructed the structure of the experimental setup,and the dynamic system reconstructed with the measured data reproduces good experimental results in a wide range of parameters.

关键词： dynamics inverse problem data analysis

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Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu jing Zhang jing Yang jinghui Chen Xingyue xiao Xiayin Yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery shows excellent cycling stability at 1 C,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery

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Preparation and Examination of Inactivated Emulsion Vaccine against Newcastle Disease, Infectious Bronchitis and H9 Subtype Avian Influenza

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Animal Husbandry and Feed Science 2011年第2期3卷 27-28,44页

作者： ZHANG Jian-wei LI Lin ZHANG Zhen-hua jing xiao-dong ZHENG xiao-lan JIANG Bei-yu Institute of Animal Husbandry and Veterinary Medicine Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 China

[ Objective] To prepare inactivated emulsion vaccine against Newcastle disease, infectious bronchitis and H9 subtype avian influenza. [ Method] Antigen fluid of Newcastle disease virus （NDV） La Sota strain, infectious bronchitis virus （IBV） M41 strain and HgN2 subtype avian in- fluenza virus （AIV） WD strain was prepared by propagation in chicken embryos, respectively. The antigen fluid was concentrated with FILTRON Cassette ultra-filtration system and inactivated by formalin. The antigen fluid of NDV, IBV and AIV was mixed at a volume ratio of 1：1：1. Then the mixture was emulsified by Span-80 and Tween-80 and added medical white oil as adjuvant. The sterility and physical characteristics of the prepared ND-IB-AI combined vaccine were detected. [ Result] The three batches of ND-IB-AI combined vaccine were germ-free, milky white, with water-in- oil pattern and with viscosity of 6.3 -6.8 s. The water and oil were not separated after rest at 37 ~C for 21 d or centrifugation. [ Conclusion] The three batches of ND-IB-AI combined vaccine were germ-free and reached the standard for physical characteristics of vaccines.

关键词： Newcastle disease Infectious bronchitis disease Avian influenza disease Inactivated vaccine

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悬臂梁冲击消振系统实验分析

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噪声与振动控制 2009年第5期29卷 13-15页

作者：景晓华郑广花华北航天工业学院河北廓房065000

对悬臂梁冲击消振系统进行实验研究,测量振动系统的减振位移响应,分析主要实验现象。

关键词：振动与波冲击消振系统减振效率

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A facile synthesis and anti-tumour activity of 6-methyl-N-substituted-2-arylamino-4-amino-furo[2,3-d]pyrimidine-5-carboxamide

A facile synthesis and anti-tumour activity of 6-methyl-N-su...

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中国化学会第27届学术年会

作者： Hu, Yang-Gen Xu, jing Zeng, xiao-hua Ma, Jun-Kai Zheng, Ai-hua Institute of Medicinal Chemistry, Yunyang Medical College, Shiyan 442000, China

＜正＞The derivatives of fused pyrimidines are valued not only for their rich and varied chemistry, but also for many important biological properties. As such, they have found applications in

关键词： Furo[2,3-d]pyrimidine synthesis anti-tumour activity

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冲击消振系统动力学初探

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噪声与振动控制 2009年第4期29卷 23-26页

作者：景晓华郑广花付鸿鸽北华航天工业学院机械工程系河北廊坊065000

通过数值分析获得冲击消振系统典型的稳定周期响应相轨图,在相轨图中直接观察倍周期分叉,并在庞加莱(Poincare)截面中显示了该振冲系统的混沌运动性质。

关键词：振动与波冲击消振周期响应分叉混沌

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