检索结果-南通市图书馆

Genome-wide alternative splicing variation and its potential contribution to maize immature-ear heterosis

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2021年第2期9卷 476-486页

作者： xiaojiao hu Hongwu Wang Kun Li Xiaogang Liu Zhifang Liu Yujin Wu Shuqiang Li Changling huang National Engineer Laboratory of Crop Molecular Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Heterosis is a well-known phenomenon widely applied in *** studies have suggested that differential gene and protein expression between hybrids and their parents play important roles in *** splicing(AS)is an essential posttranscriptional mechanism that can greatly affect the transcriptome and proteome diversity in ***,genome-wide AS divergence in hybrids compared to their parents and its potential contribution to heterosis have not been comprehensively *** report the direct profiling of the AS landscape using RNA sequencing data from immature ears of the maize hybrid ZD808 and its parents NG5 and *** results revealed a large number of significant differential AS(DAS)events in ZD808 relative to its parents,which can be further classified into parental-dominant and novel DAS ***-dominant,especially NG5-dominant,events were prevalent in the hybrid,accounting for 42%of all analyzed DAS *** enrichment analysis revealed that the NG5-dominant AS events were involved mainly in regulating the expression of genes associated with carbon/nitrogen metabolism and cell division processes and contributed greatly to maize ear *** ZD808,CL11,and NG5,32.5%of DAS contained or lacked binding sites of at least one annotated maize microRNA(miRNA)and may be involved in miRNA-mediated posttranscriptional *** regulation was the predominant contributor to AS variation and participates in many important biological processes associated with immature ear *** study provides a comprehensive view of genome-wide alternative splicing variation in a maize hybrid.

关键词： Maize Heterosis Dominant alternative splicing Cis-regulation

Genetic analysis and QTL mapping of stalk cell wall components and digestibility in maize recombinant inbred lines from B73 × By804

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2020年第1期8卷 132-139页

作者： Qi Wang Kun Li xiaojiao hu huimin Shi Zhifang Liu Yujin Wu Hongwu Wang Changling huang National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijingChina National Engineering Laboratory for Crop Molecular Breeding BeijingChina

The cell wall composition and structure of the maize stalk directly affects its digestibility and in turn its feed *** studies of stem quality have focused mostly on common maize germplasm,and few studies have focused on high-oil cultivars with high grain and straw *** of the genetic basis of cell wall composition and digestibility of maize stalk using high-oil maize is desirable for improving maize forage *** the present study,a high-oil inbred line(By804)was crossed as male parent with the maize inbred line B73 to construct a population of 188 recombinant inbred lines(RILs).The phenotypes of six cell-wall-related traits were recorded,and QTL analysis was performed with a genetic map constructed with SNP *** traits were significantly correlated with one another and showed high broad-sense *** 20 QTLs mapped,the QTL associated with each trait explained 10.0%–41.1%of phenotypic *** half of the QTL each explained over 10%of the phenotypic *** results provide a theoretical basis for improving maize forage quality by marker-assisted selection.

关键词： Maize QTL Cell wall Digestibility Recombinant inbred lines

Maize WI5 encodes an endo-1,4-β-xylanase required for secondary cell wall synthesis and water transport in xylem

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2020年第10期62卷 1607-1624页

作者： xiaojiao hu Yang Cui Xiaomin Lu Weibin Song Lei Lei Jinjie Zhu Jinsheng Lai Lizhu E Haiming Zhao State Key Laboratory of Plant Physiology and Biochemistry National Maize Improvement CenterCollege of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100193China

Water transport from roots to leaves through xylem is important for plant growth and *** in water transport can cause drought stress,even when there is adequate water in the ***,we identi-fied the maize(Zea mays)wilty5(wi5)mutant,which ex-hibits marked dwarfing and leaf wilting throughout most of its life cycle under normal growth ***5 seed-lings exhibited lower xylem conductivity and wilted more rapidly under drought,NaCl,and high temperature treat-ments than wild-type ***-based cloning revealed that WI5 encodes an active endo-1,4-β-xylanase from gly-cosyl dehydration family 10,which mainly functions in degrading and reorganizing cell wall ***-transcription polymerase chain reaction andβ-glucuronidase assays revealed that WI5 is highly expressed in stems,especially in internodes undergoing secondary wall *** sequencing suggested that WI5 plays a unique role in internode *** and electron microscopy confirmed that wi5 is defective in xylan deposition and secondary cell wall *** deposition and xylan content were markedly re-duced in wi5 compared to the wild-type *** results suggest that WI5 functions in xylem cell wall thickening through its xylanase activity and thereby regulates xylem water transport,the drought stress response,and plant growth in maize.

关键词： dwarf fir transport

在线全文

学校读者我要写书评

暂无评论

新型建筑节能外墙保温体系施工工艺

江苏建筑职业技术学院学报 2018年第4期18卷 26-29页

作者：胡晓娇北京中铁大都工程有限公司北京102600

FS外模板现浇混凝土复合保温体系是全国重点推广的新型建筑节能材料.建筑节能与结构一体化技术集建筑保温和墙体围护于一体,墙体不需要另行采取保温措施即可满足现行建筑节能标准要求,实现保温与墙体寿命的新型建筑保温.结合燕郊某房建... 详细信息

FS外模板现浇混凝土复合保温体系是全国重点推广的新型建筑节能材料.建筑节能与结构一体化技术集建筑保温和墙体围护于一体,墙体不需要另行采取保温措施即可满足现行建筑节能标准要求,实现保温与墙体寿命的新型建筑保温.结合燕郊某房建工程外墙保温体系施工过程的研究,总结并优化了FS外模板现浇混凝土复合保温体系的施工工艺、施工技术和控制要点.

关键词：新型建筑节能外墙保温体系 FS外模板施工技术

Influence of Heat Treatment on The Precipitation of γ1 Phase in High Nb Containing TiAl-based Intermetallic Alloys

在线全文

学校读者我要写书评

暂无评论

Influence of Heat Treatment on The Precipitation of γ1 Phas...

《大卫·柯波菲尔》四译本比较分析——以人物语言及抒情段落为对象

2011中国材料研讨会

作者： YiFan hu,xiaojiao Zhang,Junpin Lin,Guoliang Chen State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing

＜正＞A new intermetallic compound γ1 （Ti4Nb3Al9） phase can be observed with the increasment of Nb content in the Ti-Al-Nb ternary *** work deals with the influence of heat treatment on the

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

鸡西大学学报（综合版） 2009年第2期9卷 99-102页

作者：胡晓姣大连外国语学院

《大卫·柯波菲尔》是英国小说家查尔斯.狄更斯的得意之作,目前国内有若干汉译本,然而译本质量却良莠不齐,许多学者曾就其译文质量问题进行过翻译批评。拟就其中四个译本中对人物语言及抒情段落的翻译进行比较,以期与读者共同感受原作... 详细信息

《大卫·柯波菲尔》是英国小说家查尔斯.狄更斯的得意之作,目前国内有若干汉译本,然而译本质量却良莠不齐,许多学者曾就其译文质量问题进行过翻译批评。拟就其中四个译本中对人物语言及抒情段落的翻译进行比较,以期与读者共同感受原作的良苦用心以及译作的匠心独运之处。

关键词：《大卫·柯波菲尔》翻译翻译批评

从“脱贫攻坚”到“乡村振兴”战略转轨阶段的农村基层党建工作研究--以四川省凉山彝族自治州为例

在线全文

学校读者我要写书评

暂无评论

阿坝师范学院学报 2021年第1期38卷 5-11页

作者：任志江胡小娇西南财经大学马克思主义学院四川成都611130

农村基层党组织如何在从“脱贫攻坚”到“乡村振兴”的战略转轨中继续有效地发挥其战斗堡垒作用,不仅关系着我国“三农”问题的解决状况,也关系着现代化进程和民族复兴大业的全局。四川省凉山彝族自治州是我国脱贫攻坚基础最差、全面小... 详细信息

农村基层党组织如何在从“脱贫攻坚”到“乡村振兴”的战略转轨中继续有效地发挥其战斗堡垒作用,不仅关系着我国“三农”问题的解决状况,也关系着现代化进程和民族复兴大业的全局。四川省凉山彝族自治州是我国脱贫攻坚基础最差、全面小康底子最薄、乡村振兴难度最大的地区之一。对这一代表性地区农村基层党建工作中的问题与对策进行专题研究,能为西部民族地区顺利实现两大战略转轨和如期完成新阶段的各项奋斗目标提供有价值的思路和启示。

关键词：西部民族地区凉山彝族自治州农村基层党建脱贫攻坚乡村振兴

反应氧族促进神经保护的量效关系及其机制研究

在线全文

学校读者我要写书评

暂无评论

Journal of Chinese Pharmaceutical Sciences 2024年第1期33卷 46-56页

作者：黄荣胡小娇张润芳李晓晖岑娟河南大学第一附属医院神经内科河南开封475000 河南大学药学院天然药物与免疫工程重点实验室河南开封475004

反应氧族(ROS)的大量产生是缺血性中风损伤的关键因素。尽管大量研究表明抗氧化剂具有神经保护作用,然而其长期临床疗效始终差强人意。事实上,ROS在特定浓度下具有促进细胞增殖、促进保护性自噬、激活自身抗氧化能力等积极的生理作用,... 详细信息

反应氧族(ROS)的大量产生是缺血性中风损伤的关键因素。尽管大量研究表明抗氧化剂具有神经保护作用,然而其长期临床疗效始终差强人意。事实上,ROS在特定浓度下具有促进细胞增殖、促进保护性自噬、激活自身抗氧化能力等积极的生理作用,在抗氧化干预时尽量保留ROS的优势作用或是解决问题的关键。本研究探索了不同剂量下H2O2对PC12和SH-SY5Y神经细胞增殖、自噬、凋亡等生理病理功能的影响,检测了相应细胞内及线粒体内ROS的变化规律,绘制了ROS发挥优势活性的剂量区间。进一步使用自噬抑制剂及信号通路抑制剂等进行研究,结果表明100μM的H2O2可通过AKT/m-TOR介导的HIF-1α和TFEB信号激活保护性自噬,从而实现神经细胞的保护作用。本研究揭示了ROS发挥优势作用的浓度范围,并阐明了其神经保护机制,为全面优化脑缺血后抗氧化剂的使用提供了重要参考。

关键词：反应氧族脑缺血保护性自噬 HIF-1α TFEB

含羟乙基纤维素及其加成物废水的霉菌降解研究

在线全文

学校读者我要写书评

暂无评论

工业安全与环保 2011年第10期37卷 4-6页

作者：岳建雄王志宏陈大志胡小娇广东省工程技术研究所广东省水环境污染控制重点实验室广州510406

从广东某化工厂的废水中分离筛选到一株可降解羟乙基纤维素(HEC)及其加成物的霉菌,在COD为40 000mg/L以上的废水中,COD的去除率达30%以上。对该霉菌的无机营养、pH值、底物浓度等降解条件也进行了分析。

关键词：霉菌羟乙基纤维素及其加成物降解