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Transcriptomic profiling of sorghum leaves and roots responsive to drought stress at the seedling stage

Journal of Integrative Agriculture 2019年第9期18卷 1980-1995页

作者： ZHANG Deng-feng zeng Ting-ru LIU Xu-yang GAO chen-xi LI Yong-xiang LI Chun-hui SONG Yan-chun SHI Yun-su WANG Tian-yu LI Yu Institute of Crop Sciences Chinese Academy of Agricultural Sciences

Drought stress affects the growth and productivity of crop plants including *** study the molecular basis of drought tolerance in sorghum,we conducted the transcriptomic profiling of sorghum leaves and roots under drought stress using RNA-Seq method.A total of 510,559,and 3 687 differentially expressed genes(DEGs)in leaves,3 368,5 093,and 4 635 DEGs in roots responding to mild drought,severe drought,and re-watering treatments were identified,*** them,190 common DEGs in leaves and 1 644 common DEGs in roots were responsive to mild drought,severe drought,and re-watering *** Ontology(GO)enrichment analysis revealed that the GO categories related to drought tolerance include terms related to response to stimulus especially response to water deprivation,abscisic acid stimulus,and reactive oxygen *** major transcription factor genes responsive to drought stress include heat stress transcription factor(HSF),ethylene-responsive transcription factor(ERF),Petunia NAM,Arabidopsis ATAF1/2 and CUC2(NAC),WRKY transcription factor(WRKY),homeodomain leucine zipper transcription factor(HD-ZIP),basic helix-loop-helix transcription factor(bHLH),and V-myb myeloblastosis viral oncogene homolog transcription facotr(MYB).Functional protein genes for heat shock protein(HSPs),late-embryogenesis-abundant protein(LEAs),chaperones,aquaporins,and expansins might play important roles in sorghum drought ***,the genomic regions enriched with HSP,expansin,and aquaporin genes responsive to drought stress could be used as powerful targets for improvement of drought tolerance in sorghum and other ***,our results provide a genome-wide analysis of DEGs in sorghum leaves and roots under mild drought,severe drought,and re-watering *** study contributes to a better understanding of the molecular basis of drought tolerance of sorghum and can be useful for crop improvement.

关键词： sorghum(Sorghum bicolor L.) transcriptomic profiling drought leaves roots

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An integrated self-healing algorithm for resilient packet ring

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High Technology Letters 2005年第3期11卷 284-288页

作者： Zhou Xiaobo（周晓波） Jin Depeng zeng Lieguang School of Electronics and Information Engineering Beijing Jiaotong University Department of Electronic Engineering Tsinghua University

Resilient Packet Ring (RPR) is a Media Access Control (MAC) layer protocol that operates over a double counter-rotating ring network topology. RPR is designed to enhance Synchronous Digital Hierarchy(SDH) in order to handle data traffic more efficiently. Since Intelligent Protection Switching(IPS) is one of the key technologies in ring networks, RPR provides two intelligent protection algorithms: steering and wrapping. While wrapping in RPR in essence inherits the automatic protection switching(APS) algorithm of SDH, it also wastes the bandwidth on the wrapping ringlets and may result in severe congestion. Whereas steering in RPR provides high bandwidth utilization, its switching speed is low, because it is indeed a high layer's restoration algorithm. In this paper, integrated self-healing(ISH) algorithm as an effective algorithm for RPR is proposed, which synthesizes the merits of the two algorithms by transporting healing signal and computing routing in MAC layer. At last, the performance of ISH algorithm is analyzed and simulated.

关键词： resilient packet ring (RPR) media access control (MAC) self-healing ring intelligent protection switching (IPS)

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肝脏干细胞研究与应用存在的问题及对策

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第二军医大学学报 2017年第9期38卷 1092-1097页

作者：林勇曾欣谢渭芬第二军医大学长征医院消化内科上海200003

干细胞是目前生物医学的研究热点之一。近年研究发现肝脏中存在多种具有不同标志物的干细胞,在肝脏再生中具有重要作用;自体及异体干细胞移植治疗终末期肝病也取得了一定进展。但肝干细胞的来源及标志物尚未完全阐明,肝干细胞的增殖和... 详细信息

干细胞是目前生物医学的研究热点之一。近年研究发现肝脏中存在多种具有不同标志物的干细胞,在肝脏再生中具有重要作用;自体及异体干细胞移植治疗终末期肝病也取得了一定进展。但肝干细胞的来源及标志物尚未完全阐明,肝干细胞的增殖和分化调控机制仍有待深入研究。随着谱系追踪技术、干细胞分离和培养体系的发展与成熟,肝干细胞的来源及其在肝再生中的作用将会进一步明确,肝病干细胞治疗有望成为现实。

关键词：肝干细胞干细胞标志物干细胞移植慢性疾病

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Effects of Mulching Mode on Canopy Physiological, Ecological Characteristics and Yield of Upland Rice

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Rice science 2011年第3期18卷 217-223页

作者： Yu-zhu ZHANG[a][b] Yang LIU[a][b] Xiang zeng[b] Kai-lin chen[b] Ze-hui HUANG[b] Hong-ke XIE[b] [a]Hunan Agricultural University Changsha 410128 China [b]Hunan Rice Research Institute Changsha 410125 China

The effects of mulching mode on population physiology and ecology of rice were studied using a combination P88S/1128 as the material under three mulching cultivation modes including plastic film mulching, straw mulching and liquid film mulching, as well as bare cultivation (control). The results indicated that mulching mode had significant effects on micro-meteorological factors and individual growth of rice, as shown by an increase of relative humidity, a better internal micro-meteorological environment of rice population, a significant reduction under the rice canopy temperature, especially during high-temperature periods. Rice plants under mulching cultivation conditions displayed a stronger transpiration and lower leaf temperature, thereby improving the ability of anti-high temperature stress and markedly increasing the photosynthetic rate. Furthermore, the yield components of rice were significantly optimized under mulching cultivation, of which with plastic film mulching displayed the highest grain number per panicle and seed-setting rate, and a yield increase of 16.81% compared with the control; and with straw mulching displayed an increase of effective panicle number and a 9.59% increase of total yield compared to the control.

关键词： upland rice mulching yield photosynthesis microclimate

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Synthesis and electrochemical performance of LiMnPO_4 /C composites cathode materials

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Rare Metals 2012年第5期31卷 474-478页

作者： ZHONG Shengkui XU Yuebin LI Yanhong zeng Honghu LI Wei WANG Jian College of Environmental Science and Engineering Guilin University of Technology Guilin 541004 China Guangxi Key Laboratory of Environmental Engineering Protection and Assessment Guilin University of Technology Guilin 541004 China

LiMnPO_4 /C composites were synthesized via solid-state reaction with different carbon sources: sucrose, citric acid and oxalic acid. The sam- ples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical performance test. The results of XRD reveal that carbon coating has no effect on the phase of LiMnPO_4 . The LiMnPO_4 /C synthesized at 600 °C with citric acid as carbon source shows an initial discharge capacity of 117.8 mA·hg^-1 at 0.05 C rate. After 30 cycles, the capacity remains 98.2 mAh·g^-1 . The improved electrochemical properties of LiMnPO_4 /C is attributed to the decomposition of organic acid during the sintering process.

关键词： lithium-ion battery cathode material carbon coating LiMnPO^4

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Advanced Space-based Solar Observatory(ASO-S):an overview

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Research in Astronomy and Astrophysics 2019年第11期19卷 3-10页

作者： Wei-Qun Gan cheng Zhu Yuan-Yong Deng Hui Li Yang Su Hai-Ying Zhang Bo chen Zhe Zhang Jian Wu Lei Deng Yu Huang Jian-Feng Yang Ji-Jun Cui Jin Chang Chi Wang Ji Wu zeng-Shan Yin Wen chen cheng Fang Yi-Hua Yan Jun Lin Wei-Ming Xiong Bin chen Hai-Chao Bao Cai-Xia Cao Yan-Ping Bai Tao Wang Bing-Long chen xin-Yu Li Ye Zhang Li Feng Jiang-Tao Su Ying Li Wei chen You-Ping Li Ying-Na Su Hai-Yan Wu Mei Gu Lei Huang Xue-Jun Tang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201203China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Nanjing Institute of Astronomical Optics&Technology National Astronomical ObservatoriesChinese Academy of SciencesNanjing 210042China Changchun Institute of Optics Fine Mechanics and PhysicsChangchun 130033China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Yunnan Observatories Chinese Academy of SciencesKunming 650011China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 101408China Beijing Special Engineering and Design Institute Beijing 100028China Beijing Institute of Tracking and Telecommunications Technology Beijing 100094China Shanghai Academy of Spaceflight Technology Shanghai 201109China

The Advanced Space-based Solar Observatory(ASO-S)is a mission proposed for the 25 th solar maximum by the Chinese solar *** scientific objectives are to study the relationships between the solar magnetic field,solar flares and coronal mass ejections(CMEs).Three payloads are deployed:the Full-disk vector Magneto Graph(FMG),the Lyman-αSolar Telescope(LST)and the Hard X-ray Imager(HXI).ASO-S will perform the first simultaneous observations of the photospheric vector magnetic field,non-thermal imaging of solar flares,and the initiation and early propagation of CMEs on a single ***-S is scheduled to be launched into a 720 km Sun-synchronous orbit in *** paper presents an overview of the mission till the end of Phase-B and the beginning of Phase-C.

关键词： space vehicles instruments-Sun magnetic fields-Sun flares-Sun CMEs-Sun UV radiation-Sun X-ray,gamma-rays

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Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism

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Journal of Iron and Steel Research International 2024年第5期31卷 1071-1081页

作者： Min Gan Hao-xiang Zheng Xiao-hui Fan Zhi-yun Ji Qiang Li Ming Wu Yi-fan Wang Xiao-long Wang Yu-feng Wu Xu-ling chen zeng-qing Sun Xiao-xian Huang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan030003ShanxiChina

Hot air sintering technology is used to improve the quality and production efficiency of sintered ***,the current thick layer condition highlights the disadvantage of the low oxygen potential of the hot air sintering ***,it is considered to use oxygen enrichment sintering to improve the environment of hot air *** sintering,hot air sintering,and oxygen-rich hot air sintering were compared through sintering cup experiments,and the influence of hot air and oxygen-rich hot air on sintering indexes was *** air reduced the vertical sintering velocity,while improved the yield and tumbler ***-rich hot air sintering contributed to improving the vertical sintering velocity while ensuring the quality of sintered ore,thus comprehensively improving production *** the action of hot air,the highest temperature of the sintering layer increased and the high-temperature holding time was *** oxygen enrichment,the combustion efficiency of fuels in the upper layer of materials was promoted,which optimized heat distribution in the middle and lower layers of materials and increased the content of calcium ferrite in the sintered ore,thus strengthening the sintering process.

关键词： Iron ore sintering Hot air sintering Oxygen enrichment Function mechanism

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RNA结合蛋白的组学解析与功能探索

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化学学报 2024年第1期82卷 53-61页

作者：曾如馨陈鹏北京大学化学与分子工程学院化学生物学系、北京大学合成与功能生物分子中心北京100871

转录后调控在生理过程中占据十分重要的地位,其分子机制包含大量的核糖核酸(RNA)与蛋白质之间的相互作用.在RNA的整个生命周期中,RNA结合蛋白(RBPs)是相当关键的参与者和执行者,影响了细胞生理过程的运行及机体稳态的维持.研究RNA结合... 详细信息

转录后调控在生理过程中占据十分重要的地位,其分子机制包含大量的核糖核酸(RNA)与蛋白质之间的相互作用.在RNA的整个生命周期中,RNA结合蛋白(RBPs)是相当关键的参与者和执行者,影响了细胞生理过程的运行及机体稳态的维持.研究RNA结合蛋白质组,可以为发掘生物标志物、寻找疾病治疗的靶标提供重要信息.近年来,捕捉RBPs的手段推陈出新,从只能富集特定RNA的结合蛋白发展至可以实现全局性的RBPs鉴定,并对RBP的性质如空间分布、翻译后修饰所产生的影响进行了探索.聚焦于RBPs的组学解析手段以及功能蛋白质组探索,介绍现有的技术,总结技术特点并分析其所存在的问题,最后展望RBP组学研究技术改进的方向和应用前景.

关键词：核糖核酸(RNA)结合蛋白 RNA结合蛋白质组相分离空间分布翻译后修饰

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Patients with SERPINC1 rs2227589 polymorphism found to have multiple cerebral venous sinus thromboses despite a normal antithrombin level:A case report

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World Journal of Clinical Cases 2022年第2期10卷 618-624页

作者： Feng Liao Jun-Ling zeng Jian-Gang Pan Jing Ma Zhi-Jian Zhang Zhi-Jun Lin Li-Feng Lin Yu-Sen chen Xiao-Tang Ma Department of Neurology Affiliated Hospital of Guangdong Medical UniversityZhanjiang 524001Guangdong ProvinceChina Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases Affiliated Hospital of Guangdong Medical UniversityZhanjiang 524001Guangdong ProvinceChina

BACKGROUND The hereditary antithrombin(AT)deficiency caused by SERPINC1 gene mutation is an autosomal dominant thrombotic *** increasing number of studies have shown that mutations in the SERPINC1 rs2227589 polymorphic site are correlated with a risk of venous thromboembolism(VTE)at common sites,such as lower extremity deep venous thrombosis and pulmonary ***,there are no reports of cerebral venous sinus thrombosis(CVST),a VTE site with a low incidence rate and rs2227589 *** SUMMARY Here,we report a Chinese CVST case with a mutation of the SERPINC1 rs2227589 polymorphic site,which did not cause significant AT *** a 50-year-old male patient presenting with multiple cerebral venous sinus thromboses no predisposing factors were detected,although a relative had a history of lower extremity deep venous *** performed sequencing of the SERPINC1 gene for the patient and his daughter,which revealed the same heterozygous mutation at the rs2227589 polymorphic site:c.41+141G>*** The results showed that more studies should be conducted to assess the correlation between rs2227589 polymorphism and CVST.

关键词： Cerebral venous sinus thromboses SERPINC1 rs2227589 polymorphic Deep venous thrombosis Venous thromboembolism Case report

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河北承德路通沟剖面寒武系层序地层划分

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中国地质 2016年第3期43卷 921-935页

作者：赵新伟曾伟中国地质大学(北京)地球科学与资源学院北京100083

层序地层学是地层学研究中的第三次革命,其强调年代地层框架内的沉积相关系和地层结构。河北路通沟剖面寒武系地层连续,层序界面清楚而独特,沉积现象丰富,是进行华北地台寒武系层序地层划分的典型地点之一。该剖面岩相类型以泥晶灰岩、... 详细信息

层序地层学是地层学研究中的第三次革命,其强调年代地层框架内的沉积相关系和地层结构。河北路通沟剖面寒武系地层连续,层序界面清楚而独特,沉积现象丰富,是进行华北地台寒武系层序地层划分的典型地点之一。该剖面岩相类型以泥晶灰岩、鮞粒灰岩及白云岩为主,发育潮坪相、颗粒滩相、缓坡相及陆棚相等沉积相。在新的年代地层框架下,依据沉积相的垂向叠加样式及其反映的长周期旋回特征,将路通沟剖面寒武系划分为9个三级层序,以第三统徐庄组组成的三级层序(TST+CS+HST)为界,整个沉积序列从混积潮坪相沉积变为缓坡型碳酸盐岩沉积,层序也从以"TST+HST"为主的沉积序列转变为以"CS+HST"为特征的淹没不整合型层序序列。芙蓉统中众多的叠层石生物丘暗示:寒武系末期贫乏骨骼的风暴海洋中微生物碳酸盐岩随后生动物辐射也在增加的特殊沉积现象。基于沉积相叠置方式及旋回特征对路通沟剖面寒武系的层序地层研究,将为探索华北地台东北部广泛分布的寒武系地层的层序划分提供一个典型的实例,为今后大范围的追索和对比提供更多的思考途径。

关键词：层序地层寒武系路通沟剖面叠加样式淹没不整合

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