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Effects of Tsukamurella tyrosinosolvens P9 on growth,physiology and antioxdant enzyme of peanut under drought stress and after re-watering

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BIOCELL 2023年第6期47卷 1417-1430页

作者： ChanGMEI LONG TINGTING YANG yujie han LIZHEN han College of Life Sciences Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education)Collaborative Innovation Center for Mountain Ecology&Agro-Bioengineering(CICMEAB)Institute of Agro-BioengineeringGuizhou UniversityGuiyang550025China

Background:The plant-growth-promoting rhizobacterium Tsukamurella tyrosinosolvens is a rare strain of actinomycete,in order to recognize and expand the ecological functions of rare ***:In this experiment,we studied the effect of Tsukamurella tyrosinosolvens P9 on the drought resistance of peanut by inoculating peanut seedlings in pots and measuring the growth and physiological indicators of peanut under drought stress and re-watering ***:The results showed that during drought stress,the relative water content of the soil and leaves,chlorophyll content,and stomatal length,width,and aperture were significantly decreased while the levels of malondialdehyde(MDA),H_(2)O_(2) and stomatal density were significantly *** growth was also ***,inoculation with the P9 strain significantly promoted the growth of peanut under drought stress as plant height,fresh weight,root length and root weight were significantly higher compared with the uninoculated drought stress *** addition,in P9-inoculated plants,the water and chlorophyll contents were significantly higher and the activities of the antioxidant enzymes CAT and SOD were significantly increased(except during the six days of drought treatment).While the stomatal length,width,and aperture were improved,the levels of MDA and H2O2 were significantly *** staining showed that inoculation with P9 reduced O^(2−) accumulation under *** re-watering,the physiological indexes of inoculated plants recovered more quickly and grew ***:The results showed that *** P9 enhanced drought resistance and improves peanut growth by increasing leaf water content,increasing photosynthesis,regulating stomatal closure,and improving antioxidant enzyme activity.

关键词： PGPR Rare actinomycetes Drought resistance Biofertilizer

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Effect of Residual Stress on Corrosion Sensitivity of Carbon Steel Studied by SECM

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Chemical Research in Chinese Universities 2014年第6期30卷 1022-1027页

作者： WANG yujie han Xiaoping LIU Yu ZhanG Weiwei NIU Lin Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical Engineering Shandong University Jinan 250100 P. R. China

The effect of compressive residual stress on the reactivity of carbon steel in a neutral chloride solution was investigated by means of potentiodynamic polarization and local electrochemical measurement with scanning electrochemical microscope（SECM）. Meanwhile, X-ray diffraction, as a nondestructive technique, was employed to determine the levels of residual stress in near-surface layers of carbon steel specimen. The results show that the resi- dual stress existed in the specimen fell into the category of compressive residual stress which was inversely propor- tional to the corrosion sensitivity of carbon steel specimen. By using I/I3 couple as a redox mediator in the current feedback mode of SECM measurements, the Faradaic current on Pt tip, which was relevant to the rate of the I3- ion reduction, fell with the increase of compressive residual stress. The correlation between compressive residual stress and heterogeneous electron transfer rate has been proposed based on the inference of the localized electrochemical reactions occurred on the specimen surface,

关键词： rCarbon steel Corrosion sensitivity Residual stress Scanning electrochemical microscope(SECM)

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Research on the Education of Migrant Children in China:A Review of the Literature

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Frontiers of Economics in China-Selected Publications from Chinese Universities 2019年第2期14卷 168-202页

作者： Yuanyuan Chen Shuaizhang Feng yujie han School of Economics Shanghai University of Finance and EconomicsShanghai 200433China Key Laboratory of Mathematical Economics (Ministry of Education) Shanghai University of Finance and EconomicsShanghai 200433China Institue for Economic and Social Research Jinan UniversityGuangzhou 510632China

With the rapid urbanization and mass internal migration in China during the past several decades, the population of children who migrate with their parents to the cities has now reached over 35 million. The education of migrant children poses significant challenges to China's hukou based education system. In this paper, we first review the policy developments and descriptive studies related to migrant children's education to offer a comprehensive view of the issue. We then provide in-depth examination of several important quantitative literatures, including the effect of parental migration on children's education, schooling choices of migrant children and their impacts on school performance, peer effects of migrant children in urban public schools. Overall, although considerable progress has been made regarding migrant children's education in China, more fundamental policy reforms are necessary to improve the quality of migrant children^ education at the compulsory education level and beyond.

关键词： migrant children education public schools migrant schools compulsory education hukou

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The phase separation of SGS3 regulates antiviral immunity and fertility in Arabidopsis

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Science China(Life Sciences) 2023年第8期66卷 1938-1941页

作者： yujie han Xiaolin Zhang Ran Du Xiaoyi Shan Daoxin Xie MOE Laboratory of Bioinformatics Tsinghua-Peking Center for Life SciencesSchool of Life SciencesTsinghua UniversityBeijing 100084China Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program School of Life SciencesTsinghua UniversityBeijing 100084China Shenzhen Branch of Guangdong Laboratory for Lingnan Modern Agriculture Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124China

Dear Editor,As a conserved mechanism among eukaryotic organisms,RNA silencing is vital for suppressing gene expression at the transcriptional or posttranscriptional level to regulate multiple biological *** interfering RNAs(si RNAs)generated by Dicer proteins integrate with Argonaute(AGO)to form an RNA-induced silencing complex(RISC),in which RNA/DNA could be degraded/methylated through a sequence-specific manner(Ding et al.,2004).

关键词： immunity separation

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Characteristics of carbon storage in Shanghai's urban forest

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Chinese Science Bulletin 2013年第10期58卷 1130-1138页

作者： WANG Zhe CUI Xuan YIN Shan SHEN GuangRong han yujie LIU ChunJiang School of Agriculture and Biology and Research Center for Low Carbon Agriculture Shanghai Jiao Tong University Department of Art Design Shanghai Jian Qiao College Key Laboratory of Urban Agriculture(South) Ministry of Agriculture Shanghai Forestry Station

Urban forest has undergone rapid development in China over the last three decades because of the acceleration of *** forest thus plays an increasingly important role in carbon sequestration at a regional and national *** one of the most urbanized cities in China,Shanghai showed an increase of forest coverage from 3% in the 1990s to 13% in *** on CITY-green model and the second soil survey of Shanghai,the forest biomass carbon(FBC) was estimated to be 0.48 Tg in the urban area and,forest soil organic carbon(SOC)(0-100 cm soil depth) is 2.48 Tg in the urban and suburban areas,*** values are relatively within the median and lower level compared with other Chinese megacities,with the FBC of 0.02 Tg in Harbin to 47.29 Tg in Chongqing and the forest SOC of 1.74 Tg in Nanjing to 418.67 Tg in *** the different land-use types in Shanghai,the SOC density ranges from 13.8(tidal field) to 38.6 t ha-1(agricultural land).On average,the forest SOC density(31.5 t ha-1) in Shanghai is lower than that in agricultural lands(38.6 t ha-1) and higher than that in lawns(26.5 t ha-1) and gardens(21.3 t ha-1).In Shanghai,the SOC density in newly established urban parks is generally lower than that in older *** the northern and southeastern suburban areas(e.g.,Baoshan,Yangpu,and Nanhui districts),greenspace SOC density is higher than that in the central commercial areas(Hongkou,Putuo,Changning,and Zhabei districts) and in newly developed district(Pudong District).Uncertainties still exist in the estimation of urban forest carbon in Shanghai,as well as in other Chinese ***,future research directions are also discussed in this paper.

关键词：城市森林碳储量上海土壤有机碳密度城市化进程特征土地利用类型城市公园

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SMAD7 expression in CAR-T cells improves persistence and safety for solid tumors

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Cellular & Molecular Immunology 2024年第3期21卷 213-226页

作者： Sixin Liang Rui Zheng Baile Zuo Jia Li Yiyi Wang yujie han Hao Dong Xiaojuan Zhao Yiting Zhang Pengju Wang Ruotong Meng Lintao Jia Angang Yang Bo Yan State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers Department of Biochemistry and Molecular BiologyFourth Military Medical UniversityXi’anShaanxi710032China School of Medicine Technology Xinxiang Medical UniversityXinxiangHenan453003China Department of Obstetrics and Gynecology Xijing Hospital of Fourth Military Medical UniversityXi’anShaanxi710032China College of Life Science Yan’an UniversityYan’anShaanxi716000China Department of Immunology Fourth Military Medical UniversityXi’anShaanxi710032China

Despite the tremendous progress of chimeric antigen receptor T(CAR-T)cell therapy in hematological malignancies,their application in solid tumors has been limited largely due to T-cell exhaustion in the tumor microenvironment(TME)and systemic toxicity caused by excessive cytokine *** a key regulator of the immunosuppressive TME,TGF-βpromotes cytokine synthesis via the NF-κB ***,we coexpressed SMAD7,a suppressor of TGF-βsignaling,with a HER2-targeted CAR in engineered T *** novel CAR-T cells displayed high cytolytic efficacy and were resistant to TGF-β-triggered exhaustion,which enabled sustained tumoricidal capacity after continuous antigen ***,SMAD7 substantially reduced the production of inflammatory cytokines by antigen-primed CAR-T ***,SMAD7 downregulated TGF-βreceptor I and abrogated the interplay between the TGF-βand NF-κB pathways in CAR-T *** a result,these CAR-T cells persistently inhibited tumor growth and promoted the survival of tumor-challenged mice regardless of the hostile tumor microenvironment caused by a high concentration of TGF-β.SMAD7 coexpression also enhanced CAR-T-cell infiltration and persistent activation in patient-derived tumor ***,our study demonstrated the feasibility of SMAD7 coexpression as a novel approach to improve the efficacy and safety of CAR-T-cell therapy for solid tumors.

关键词： TGF-βpathway SMAD7 NF-κB pathway CAR-T-cell therapy Cytokine release syndrome(CRS)

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论中国当代科幻小说生态向度的建设性

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小说评论 2019年第3期 26-33页

作者：韩玉洁华北水利水电大学

近年来,科幻小说受到读者和评论者的广为关注,其中一个原因是因为以刘慈欣、郝景芳、韩松、吴岩为首的一批科幻作家成果颇丰,写出了文学性和科学性兼具的优秀作品。特别是刘慈欣和郝景芳分别获得第73和74届雨果奖。有力证明了中国科幻... 详细信息

近年来,科幻小说受到读者和评论者的广为关注,其中一个原因是因为以刘慈欣、郝景芳、韩松、吴岩为首的一批科幻作家成果颇丰,写出了文学性和科学性兼具的优秀作品。特别是刘慈欣和郝景芳分别获得第73和74届雨果奖。有力证明了中国科幻小说发展到了极为成熟的高度,走向了国际科幻文坛,并逐渐得到认可。

关键词：科幻小说中国当代生态向度科幻作家优秀作品刘慈欣评论者科学性

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A Facile Electrochemical Aptasensing Platform Based on Polydopamine@Graphene Composite for Detection of Protein

A Facile Electrochemical Aptasensing Platform Based on Polyd...

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中国化学会第十三届全国分析化学年会

作者： Fenglin Zhang Zhiguang Liu yujie han Xiuying Peng Yujing Guo Institute of Environmental Science Shanxi University College of Chemistry and Chemical Engineering Shanxi University

We demonstrated a facile electrochemical aptasensing platform to detect thrombin by using polydopamine@graphene (PDA@Gr) *** serves as enhanced material for constructing high-performance electrochemical *** have fascinating adhesion and biocompatibility *** PDA incorporate with graphene to form functional material PDA@Gr,it exhibits both excellent conductivity and adsorption properties of graphene and *** results indicated that the nanohybrids has strong adsorption ability to DNA *** immobilizing of thrombin binding aptamer (TBA) on the PDA@Gr surface,it would hinder the electron transfer,so the decreased signal of[Fe(CN)]was *** the presence of thrombin,the TBA on the electrode surface would recognize the thrombin specifically and a protein layer as hindrance was further *** a result,the electron transfer rate was hindered,resulting in a further decrease of[Fe(CN)].The changes of the peak currents enhanced with the increase of the thrombin *** the optimal conditions,a dynamic response range from 1.0×10 M to 1.0×10 M with a detection limit of 1.0×10 M (S/N=3) was *** strategy is simple and hopeful to be extended to detect other proteins.

关键词： Graphene Polydopamine Aptamer Thrombin

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新疆东准噶尔野马泉花岗岩体的年龄和地球化学特征

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岩石学报 2010年第8期26卷 2374-2388页

作者：甘林唐红峰韩宇捷中国科学院地球化学研究所地球深部物质与流体作用地球化学研究室贵阳550002 中国科学院研究生院北京100049

新疆东准噶尔野马泉花岗岩体是一个主要由花岗闪长岩、二长花岗岩和碱长花岗岩组成的复式花岗岩体。三种岩石的锆石U-Pb年龄在误差范围内有很好的一致性(～300Ma),指示野马泉岩体是在晚石炭世侵位的,也属于东准噶尔地区后碰撞阶段的岩... 详细信息

新疆东准噶尔野马泉花岗岩体是一个主要由花岗闪长岩、二长花岗岩和碱长花岗岩组成的复式花岗岩体。三种岩石的锆石U-Pb年龄在误差范围内有很好的一致性(～300Ma),指示野马泉岩体是在晚石炭世侵位的,也属于东准噶尔地区后碰撞阶段的岩浆作用产物。元素地球化学组成表明,花岗闪长岩、二长花岗岩和碱长花岗岩均属于准铝质,其主量元素和微量元素如CaO、Al2O3、Na2O、K2O、Rb、Sr与SiO2之间有明显的线性关系,三种岩石在不相容元素蛛网图和稀土元素配分模式上均表现出相似的特征,Eu负异常程度也随着SiO2含量的增加而提高。此外,野马泉岩体不同岩石有非常近似的Hf同位素组成,其εHf(t)值为+11.8～+12.7。因此,年龄结果和地球化学特征说明,野马泉复式花岗岩体很可能是由同源岩浆通过一定的岩浆演化形成的。

关键词：锆石U-Pb年龄 Hf同位素组成岩浆演化野马泉花岗岩体东准噶尔新疆

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高职院校个性化教育:基本诉求与路径探索

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中国职业技术教育 2019年第17期35卷 30-34页

作者：韩玉洁浙江经贸职业技术学院

个性化教育是以学生为本,尊重学生的个性差异与人格特征,为每一个学生提供最合适的教育,通过优势潜能的开发与个性培养,促进学生全面发展的教育。当前,高职院校个性化教育面临社会认可度低、因材与施教不对称和职业性与个性化冲突等困... 详细信息

个性化教育是以学生为本,尊重学生的个性差异与人格特征,为每一个学生提供最合适的教育,通过优势潜能的开发与个性培养,促进学生全面发展的教育。当前,高职院校个性化教育面临社会认可度低、因材与施教不对称和职业性与个性化冲突等困境。唤醒学生的个性化、争取全社会的支持、促进学校的特色化建设是当前高职院校个性化教育的基本诉求。因此,高职院校需要不断探索四个"个性化"建设、个性化导师设置和科学化的个性化评价体系等个性化教育的可行路径。

关键词：高职院校个性化教育现实困境基本诉求可行路径

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