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Host-induced silencing of Mppar. confers Myzus persicae resistance in transgenic rape plants

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Journal of Integrative Agriculture 2024年第1期23卷 187-194页

作者： Qi Zhang Wenqin Zhan Chao Li Ling Chang Yi dong Jiang Zhang State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China Oil Crops Research Institute Chinese Academy of Agricultural SciencesWuhan 430062China Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural SciencesShenzhen 518000China

Plant-mediated RNA interference(RNAi)has emerged as a promising technology for insect *** green peach aphid,Myzus persicae,feeds on over 400 species of host *** napus(rape)is the second most important oilseed crop *** persicae is highly reproductive and causes severe damage to the rape plants due to its quite flexible life *** this study,we tested the RNAi effects of transgenic rape plants on *** in vitro feeding *** with artificial diets containing double-stranded RNAs(dsRNAs)targeting seven aphid genes,we identified a new gene encoding the par.itioning-defective protein 6(par.)as the most potent RNAi ***-and stage-expression analysis of par. suggested this gene is highly expressed in the embryo and adult stage of *** next generated transgenic rape plants expressing ds par. by Agrobacteriummediated transformation and obtained nine independent transgenic *** to wild-type control plants,transgenic rape lines expressing ds par. showed strong resistance to *** assays revealed that feeding transgenic rape plants to *** significantly decreased Mppar. expression and survival rate and impaired ***,we showed that the resistance levels to *** are positively correlated with ds par. expression levels in transgenic rape *** study demonstrates that transgenic rape plants expressing ds par. are efficiently protected from *** with the genes involved in embryo development could be the effective RNAi targets for controlling aphids and potentially other insect pests.

关键词： oilseed rape pest control aphid double-stranded RNA RNA interference

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Impact of Sky Conditions on Net Ecosystem Productivity over a “Floating Blanket” Wetland in Southwest China

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Advances in Atmospheric Sciences 2024年第2期41卷 355-368页

作者： Yamei SHAO Huizhi LIU Qun DU Yang LIU Jihua sun Yaohui LI Jinlian LI State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100029China Yunnan Meteorological Observatory Kunming 530100China College of Aviation Meteorology Civil Aviation Flight University of ChinaGuanghan 618307China Meteorological Bureau of Tengchong County Baoshan 679100China

Based on eddy covariance(EC) measurements during 2016–20, the effects of sky conditions on the net ecosystem productivity(NEP) over a subtropical “floating blanket ” wetland were investigated. Sky conditions were divided into overcast, cloudy, and sunny conditions. On the half-hourly timescale, the daytime NEP responded more rapidly to the changes in the total photosynthetic active radiation(par.) under overcast and cloudy skies than that under sunny skies. The increase in the appar.nt quantum yield under overcast and cloudy conditions was the greatest in spring and the least in summer. Additionally, lower atmospheric vapor pressure deficit(VPD) and moderate air temperature were more conducive to enhancing the appar.nt quantum yield under cloudy skies. On the daily timescale, NEP and the gross primary production(GPP) were higher under cloudy or sunny conditions than those under overcast conditions across seasons. The daily NEP and GPP during the wet season peaked under cloudy skies. The daily ecosystem light use efficiency(LUE) and water use efficiency(WUE) during the wet season also changed with sky conditions and reached their maximum under overcast and cloudy skies, respectively. The diffuse photosynthetic active radiation(par.d) and air temperature were primarily responsible for the variation of daily NEP from half-hourly to monthly timescales, and the direct photosynthetic active radiation(par.b) had a secondary effect on NEP. Under sunny conditions, par.b and air temperature were the dominant factors controlling daily NEP. While daily NEP was mainly controlled by par.d under cloudy and overcast conditions.

关键词： diffuse radiation eddy covariance NEP controlling factors wetland path analysis

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Bismuth-free Mg_(3)Sb_(2) with enhanced room-temperature thermoelectric and mechanical properties

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Journal of Materiomics 2024年第5期10卷 1101-1108页

作者： Jie Song Peng Luo Hailong sun Hezhang Li Chao Wang Yi Niu Jing Jiang Clean Energy Materials and Engineering Center State Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China The State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing100084China

Thermoelectric materials are competitive candidates for special cooling ***_(3)Sb_(2)-based materials consisting of inexpensive ingredients have profound thermoelectric *** present,alloying with Mg_(3)Bi_(2) is the most effective approach to optimize the thermoelectric properties of Mg_(3)Sb_(2)-based ***,the extremely low abundance of bismuth in the crust contradicts its economic *** this work,the ZrO_(2) micro-par.icles were separ.ted into the Mg_(3.2)Sb_(1.99)Te_(0.01).The doping effect of Zr atoms at Mg sites increased the electrical conductivity,and the combined secondary phase lowered the lattice thermal *** acceptable degradation in the Seebeck coefficient,the sample combined with 5%(in mass)ZrO_(2) exhibited a dimensionless figure of merit(zT)of 0.49 and a power factor of 2.7 mW·m^(−1)·K^(−2) near room *** average zT in the range from 300 K to 500 K reached 0.8,on par.with the Mg_(3)Sb_(2) single bond Mg_(3)Bi_(2) ***,the compressive and bending strengths reach 669 MPa and 269 MPa,respectively,far superior to the common room-temperature *** secondary phase showed a surprising and uncostly promotion of the Mg_(3)Sb_(2)-based thermoelectric materials,impelling the realization of its commercial application.

关键词： Mg_(3)Sb_(2)-Mg_(3)Bi_(2)alloy Secondary phase Room-temperature thermoelectric properties Mechanical properties Inexpensive ingredients

Key geological factors governing sweet spots in the Wufeng-Longmaxi shales of the Sichuan Basin,China

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Energy Geoscience 2024年第3期5卷 163-174页

作者： Zongquan Hu Zengqin Liu Wei Du Zhenrui Bai Ruyue Wang Chuanxiang sun dongjun Feng State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development SINOPECBeijing102206China Key Laboratory of Shale Oil/Gas Exploration and Production Technology SINOPECBeijing102206China Petroleum Exploration and Production Research Institute SINOPECBeijing102206China

Production performance of the Wufeng-Longmaxi shales varies significantly among Fuling,Weirong,and Wulong fields in the Sichuan *** organic carbon(TOC)content,mineralogy,and organic matter(OM)pore characteristics are investigated to identify key factors governing sweet *** shales with good preservation conditions in the Fuling Field exhibit large thickness,high TOC content and thin-section porosity(TSP),and well-developed OM macropores,thus high initial production and estimated ultimate recovery(EUR).Thin carbonate-containing siliceous shales with good preservation conditions in the Weirong Field feature medium-to-high TOC and well-developed OM macropores but low TSP,leading to high initial production but low *** shales with poor preservation conditions in the Wulong Field are characterized by large thickness,high TOC,low TSP and poorly-developed OM macropores,causing low initial production and *** sedimentary and preservation conditions are intrinsic decisive factors of sweet spots,as they control the mineral composition,TOC,and OM macropore ***-water shales in transgressive systems tracts(TSTs)exhibit better-developed OM macropores and greater TOC compar.d to highstand systems tracts(HSTs).OM macropores are most prevalent in siliceous shales,followed by carbonate-containing siliceous shales and then argillaceous ***,good preservation conditions are conducive to retain OM macropores with low pore aspect ratio(par..Compar.son among the three fields shows that high-TOC silicious shales with good preservation conditions are the highest in TSP and ***,organic richness,lithofacies,and preservation conditions are the major factors which determine OM pore development,governing the sweet spots of the Wufeng-Longmaxi shales.

关键词： Shale gas Organic matter pores Sweet spot Wufeng-Longmaxi shales Sichuan basin

The super-pangenome of Populus unveils genomic facets for its adaptation and diversification in widespread forest trees

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Molecular Plant 2024年第5期17卷 725-746页

作者： Tingting Shi Xinxin Zhang Yukang Hou Changfu Jia Xuming Dan Yulin Zhang Yuanzhong Jiang Qiang Lai Jiajun Feng Jianju Feng Tao Ma Jiali Wu Shuyu Liu Lei Zhang Zhiqin Long Liyang Chen Nathaniel R.Street par.K.Ingvarsson Jianquan Liu Tongming Yin Jing Wang Key Laboratory for Bio-Resources and Eco-Environment of Ministry of Education College of Life SciencesSichuan UniversityChengduSichuanChina College of Horticulture and Forestry Tarim UniversityAlar 843300China Umea Plant Science Centre Department of Plant PhysiologyUmea UniversityUmeaVasterbottenSweden Linnean Centre for Plant Biology Department of Plant BiologyUppsala BioCenterSwedish University of Agricultural SciencesUppsalaSweden The Key Laboratory of Tree Genetics and Biotechnology of Jiangsu Province and Education Depar.ment of China Nanjing Forestry UniversityNanjingJiangsuChina

Understanding the underlying mechanisms and links between genome evolution and adaptive innovations stands as a key goal in evolutionary ***,among the world’s most widely distributed and cultivated trees,exhibit extensive phenotypic diversity and environmental *** this study,we present a genus-level super-pangenome comprising 19 Populus genomes,revealing the likely pivotal role of private genes in facilitating local environmental and climate *** the integration of pangenomes with transcriptomes,methylomes,and chromatin accessibility mapping,we unveil that the evolutionary trajectories of pangenes and duplicated genes are closely linked to local genomic landscapes of regulatory and epigenetic architectures,notably CG methylation in gene-body *** compar.tive genomic analyses have enabled the identification of 142202 structural variants across species that intersect with a significant number of genes and contribute substantially to both phenotypic and adaptive *** have experimentally validated a∼180-bp presence/absence variant affecting the expression of the CUC2 gene,crucial for leaf serration ***,we developed a user-friendly web-based tool encompassing the multi-omics resources associated with the Populus super-pangenome(http://***).Together,the present pioneering super-pangenome resource in forest trees not only aids in the advancement of breeding efforts of this globally important tree genus but also offers valuable insights into potential avenues for comprehending tree biology.

关键词： Populus pangenomes whole-genome duplication structural variation genome evolution

LA COMPOSITION MINERALOGIQUE ET CHIMIQUE DES ROCHES ERUPTIVES ET par.ICULIEREMENT DES LAVES MESOZOIQUES ET PLUS RECENTES DE LA CHINE ORIENTALE par.***.

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地质学报 1928年第1期 13-59页

作者： par.A.Lacroix Prof. au Museum d’Histoire Naturelle par.s Membre honoraire de la Soeiete Geologique de Chine.

Au cours d’un voyage en Chine, effectue en decembre 1927, j’al eu I’honneur et le plaisir d’etre recu a Peking par.la Societe geologique de Chine et d’etre ainsi le temoin de sa grande activite scientifique. Auss... 详细信息

关键词： der LA COMPOSITION MINERALOGIQUE ET CHIMIQUE DES ROCHES ERUPTIVES ET par.ICULIEREMENT DES LAVES MESOZOIQUES ET PLUS RECENTES DE LA CHINE ORIENTALE par.A.Lacroix ET DES

Extracorporeal liver support in severe alcoholic hepatitis

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World Journal of Gastroenterology 2014年第25期20卷 8011-8017页

作者： Albert par.s Antoni Mas Liver Unit Hospital ClínicUniversity of BarcelonaIDIBAPSCIBERehd08036 BarcelonaSpain

The severity of alcoholic hepatitis(AH) which may coexist with cirrhosis varies greatly, from asymptomatic forms which are detected in alcoholic patients without any sign of liver disease, except laboratory abnormalities, to severe forms characterised by deep jaundice, ascites, hepatic encephalopathy and low prothrombin index. In hospitalized patients the mortality could be as high as 75%. The elevated number of therapeutic proposals reported for more than forty years reveals the lack of efficacy of a par.icular modality. Even in the most favorable trials, the survival is already very poor and in some cases related to the development of renal failure or hepatorenal syndrome. There are some motivating reports concerning albumin dialysis as a support treatment in patients with severe AH, either alone or in combination with other pharmacological therapies. The favorable effects of albumin dialysis in patients with severe AH suggest that the procedure used alone or in combination with other therapies may have a role in this clinical condition. This will be par.icularly relevant to offer an alternative therapy in these patients, thus being a potential bridge to recovery or to be listed for liver transplantation.

关键词： Acute alcoholic hepatitis Alcoholic liver disease Extracorporeal liver support Molecular Adsorbents Recirculating System Hepatorenal syndrome Treatment of alcoholic hepatitis

Effectiveness and safety of early lens extraction during par.plana vitrectomy for proliferative diabetes retinopathy with mild cataract:a randomized clinical trial

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 528-536页

作者： Wei-Bo Feng Lei Zheng Ying-Qi Li Yong-Hao Li Guo-Ming Zhang Xian Wang Bing-Qian Liu Ling Jin Yi-Nuo Huang Yang-Fan Yang Zi-dong Chen Da-Hui Ma Qing-Shan Chen Chao-Jun Qin Bing-Min Feng Zhu-Min Yang Xing Huang Cheng-Jie Yang Sheng-Hui Liu Ming-Xing Wu State Key Laboratory of Ophthalmology Guangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular DiseasesZhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510275Guangdong ProvinceChina Shenzhen Eye Hospital Affiliated to Jinan University Shenzhen 518040Guangdong ProvinceChina The Affiliated Hospital of Guizhou Medical University Guiyang 550004Guizhou ProvinceChina Guangzhou Aier Eye Hospital Guangzhou 510000Guangdong ProvinceChina

●AIM:To evaluate the effectiveness and safety of early lens extraction during par. plana vitrectomy(PPV)for proliferative diabetic retinopathy(PDR)compar.d to those of PPV with subsequent cataract surgery.●METHODS:This multicenter randomized controlled trial was conducted in three Chinese hospitals on patients with PDR,aged>45y,with mild *** par.icipants were randomly assigned to the combined(PPV combined with simultaneously cataract surgery,i.e.,phacovitrectomy)or subsequent(PPV with subsequent cataract surgery 6mo later)group and followed up for *** primary outcome was the change in best-corrected visual acuity(BCVA)from baseline to 6mo,and the secondary outcomes included complication rates and medical expenses.●RESULTS:In total,129 patients with PDR were recruited and equally randomized(66 and 63 in the combined and subsequent groups respectively).The change in BCVA in the combined group[mean,36.90 letters;95%confidence interval(CI),30.35–43.45]was significantly better(adjusted difference,16.43;95%CI,8.77–24.08;Ppar.d to sequential surgeries.

关键词： lens extraction par. plana vitrectomy proliferative diabetic retinopathy cataract simultaneously operations

基于供需匹配的商业养老财富储备体系路径优化研究

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西南金融 2024年第8期 93-108页

作者：张栋张琳中国农业大学人文与发展学院北京100084 中国劳动关系学院公共管理学院北京100048

老年人日益多元的养老需求亟需坚实的养老财富储备作为基础。除了制度化的养老金之外,非制度化的商业养老财富储备则可以通过更加灵活的方式为国民提供更丰富的养老经济保障。当前银行、基金、保险、信托等金融机构利用自身特色,创新和... 详细信息

老年人日益多元的养老需求亟需坚实的养老财富储备作为基础。除了制度化的养老金之外,非制度化的商业养老财富储备则可以通过更加灵活的方式为国民提供更丰富的养老经济保障。当前银行、基金、保险、信托等金融机构利用自身特色,创新和开发了类别和形式多样的养老金融产品,给广大国民养老财富储备提供了新的选择。但由于国民财富积累规模有限、养老金融专业认知欠缺,制约了其商业养老财富储备参与能力和意愿;同时,当前我国资本市场发展不稳定不完善,国民信任度不高,商业养老财富储备的针对性服务也有待提升,阻碍了供给的有效性。未来应通过完善收入分配政策、提高国民养老金融素养、丰富商业养老金融产品供给等方式更好匹配商业养老财富储备供给和需求,此外,还要营造良好的养老金融市场环境,重塑国民养老金融参与信心。

关键词：人口老龄化养老财富储备养老金融养老理财养老储蓄养老目标基金养老保险养老信托

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