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The DUF579 proteins GhIRX15s regulate cotton fiber development by interacting with proteins involved in xylan synthesis

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The Crop Journal 2024年第4期12卷 1112-1125页

作者： Mengyun Li Feng Chen Jingwen Luo yanan gao Jinglong Cai Wei Zeng Monika S.Doblin Gengqing Huang Wenliang Xu Hubei Key Laboratory of Genetic Regulation and Integrative Biology School of Life SciencesCentral China Normal UniversityWuhan 430079HubeiChina Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation School of Life SciencesTaizhou UniversityTaizhou 318000ZhejiangChina La Trobe Institute for Sustainable Agriculture&Food School of AgricultureBiomedicine and EnvironmentLa Trobe UniversityBundooraVIC 3086Australia

Cotton provides the most abundant natural fiber for the textile *** mature cotton fiber largely consists of secondary cell walls with the highest proportion of cellulose and a small amount of hemicellulose and *** dissect the roles of hemicellulosic polysaccharides during fiber development,four IRREGULAR XYLEM 15(IRX15)genes,GhIRX15-1/-2/-3/-4,were functionally characterized in *** genes encode DUF579 domain-containing proteins,which are homologs of AtIRX15 involved in xylan *** four GhIRX15 genes were predominantly expressed during fiber secondary wall thickening,and the encoded proteins were localized to the Golgi *** GhIRX15 gene could restore the xylan deficient phenotype in the Arabidopsis irx15irx15l double *** of GhIRX15s in cotton resulted in shorter mature fibers with a thinner cell wall and reduced cellulose content as compared to the wild ***,GhIRX15-2 and GhIRX15-4 formed homodimers and *** addition,the GhIRX15s showed physical interaction with glycosyltransferases GhGT43C,GhGT47A and GhGT47B,which are responsible for synthesis of the xylan backbone and reducing end ***,the GhIRX15s can form heterocomplexes with enzymes involved in xylan modification and side chain synthesis,such as GhGUX1/2,GhGXM1/2 and *** findings suggest that GhIRX15s participate in fiber xylan biosynthesis and modulate fiber development via forming large multiprotein complexes.

关键词： Cotton fiber Xylan biosynthesis GhIRX15s Protein-protein interaction Protein complexes

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Hybrid coating SnO_(2)for enhanced Li ions storage

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Chinese Chemical Letters 2023年第12期34卷 396-400页

作者： yanan gao Jie Liu Chenjie Lou Hailiang Geng Jipeng Fu Chengyu Li Yongjin Chen Cong Wang Wenda Zhang Xiaojun Kuang Yifan Liu Xiang gao Mingxue Tang School of Physical Science and Technology Inner Mongolia UniversityHohhot 010000China Center for High Pressure Science and Technology Advanced Research Beijing 100193China Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province Institute of Optoelectronic Materials and DevicesHangzhou 310018China College of Mathematics and Physics Bejing University of Chemical TechnologyBejing 100029China MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials Guangxi Key Laboratory of Optic and Electronic Materials and DevicesCollege of MaterialsGuilin 541100China

Anode SnO_(2)in lithium-ion batteries suffers from volume expansion and ***,the SnO_(2)nanoparticles are hybrided with ZrO_(2)particles by the support of carbon nanotube *** obtained SnO_(2)/C/ZrO_(2)composite shows improved electrochemical *** reveal that the carbon nanotubes shorten the transmission path of electrons and Li^(+) *** milling with ZrO_(2)promotes the formation of nanosized SnO_(2)to weaken the internal strain change,being beneficial to buffering volume change during electrochemical cycling ***-resolution 6.7Li NMR investigations indicate that conversion and alloying reactions are stepwise involved for SnO_(2)/C/ZrO_(2)*** strategy of designing SnO_(2)/C/ZrO_(2)composite from the morphology-controlled metal-organic frameworks for energy storage widens the possibility to fabricate promising materials with enhanced performances.

关键词： Hybrid regulation Lithium-ion batteries Fast migration Volume confinement Energy storage

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Covalent organic frameworks as heterogeneous catalysts

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Chinese Journal of Catalysis 2018年第7期39卷 1167-1179页

作者： Hui Hu Qianqian Yan Rile Ge yanan gao Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources Hainan University Ministry of EducationHaikou 570228Hainan China Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023LiaoningChina

Covalent organic frameworks （COFs）, established as an emerging class of crystalline porous polymers with high surface area, structural diversity, and esignability, attract much interest and exhibit potential applications in catalysis. In this review, we summarize the use of COFs as a versatile platform to develop heterogeneous catalysts for a variety of chemical reactions. Catalytic COFs are categorized in accordance with the types of active sites, involving single functional active sites, bifunctional active sites, and metal nanoparticles （NPs） embedded in pores. Special emphasis is placed on the deliberate or incidental synthesis strategies, the stability, the heterogeneity, and the shape/size selectivity for COF catalysis. Moreover, a description of the application of COFs as photocatalysts and electrocatalysts is presented. Finally, the prospects of COFs in catalysis and remaining issues in this field are indicated.

关键词： Covalent organic framework Organic porous material Catalyst Catalyst support Heterogeneous catalysis

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Phenotypic analysis and molecular characterization of an allelic mutant of the D61 gene in rice

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The Crop Journal 2014年第4期2卷 175-182页

作者： yanan gao Guangquan Wang Shoujiang Yuan Yanling Qin Jinfeng Zhao Yanpei Zhang Wenhui Zhang Xueyong Li College of Life Sciences Liaocheng University National Key Facility for Crop Gene Resource and Genetic Improvement Institute of Crop Science Chinese Academy of Agricultural Sciences Shandong Rice Research Institute College of Agriculture Shandong Agricultural University

Brassinosteroids(BRs) are a class of plant-specific steroidal hormones that play important roles in multiple biological processes. In this paper, a classic rice mutant gsor300084,showing erect leaves and semi-dwarf stature, was characterized. Morphological analysis in darkness showed that the mesocotyl of the gsor300084 mutant did not elongate when grown in darkness. Coleoptile elongation and root growth were less affected by the exogenous application of brassinolide(BL), the most active form of BR, in gsor300084 than in the wild-type rice variety Matsumae. Lamina joint bending analysis also showed that gsor300084 was less sensitive to exogenous BL than Matsumae. These results suggested that the gsor300084 mutant is defective in BR sensitivity. Map-based cloning indicated that gsor300084 is a novel allelic mutant of the DWARF61(D61) gene, which encodes the putative BR receptor OsBRI1. A single-base mutation appears in the LRR domain of OsBRI1, changing the 444 th amino acid from tryptophan(W) to arginine(R). Subcellular localization analysis suggested that both the wild-type and mutant OsBRI1 protein are localized at the cytoplasmic membrane. Structure modeling revealed that the W444 R substitution may affect the perception of BRs by the LRR domain.

关键词： Rice Dwarf Brassinosteroid D61 OsBRI1

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A Characterization of Complex Projective Spaces by Sections of Line Bundles

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Advances in Pure Mathematics 2015年第8期5卷 450-453页

作者： Shuyu Liang yanan gao Yicai Zhao Department of Mathematic Jinan University Guangzhou China

Let M be a n-dimensional compact irreducible complex space with a line bundle L. It is shown that if M is completely intersected with respect to L and dimH0(M, L) = n + 1, then M is biholomorphic to a complex projecti... 详细信息

关键词： Complex Space Projective Space Line Bundle Complete Intersected

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Application of biotechnology in germplasm innovation of Brassica napus

Application of biotechnology in germplasm innovation of Bras...

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第十四届全国植物基因组学大会

作者： yanan gao Jinjin Jiang Youping Wang College of Bioscience and Biotechnology Yangzhou University

Protoplast fusion can overcome the imcompatibility of distant hybridization,and promote recombination of cytoplasmic *** rapeseed lines with elevated breeding qualities were selected from progenies of somatic hybrids of Brassica napus and Sinapis alba,including yellow seed lines with 47%oil content,high pod density,long silique,low fiber content,high protein content and improved disease

关键词： Brassica napus Germplasm innovation Rapeseed breeding

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Influence of hematite morphology on the CO oxidation performance of Au/α-Fe_(2)O_(3)

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Chinese Journal of Catalysis 2021年第4期42卷 658-665页

作者： yanan gao Fu-Kuo Chiang Shaojie Li Long Zhang Peng Wang Emiel J.M.Hensen Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and ChemistryEindhoven University of TechnologyP.O.Box 5135600 MB EindhovenThe Netherlands National Institute of Clean-and-Low-Carbon Energy Shenhua NICEFuture Science and Technology CityBeijing 102211China

Controlling the interaction between metal nanoparticles and the support is a means to tune catalytic activity and *** we investigated the influence of the morphology of hematite on the performance of gold for CO *** and nanorod forms of hematite,α-Fe_(2)O_(3)(S)andα-Fe_(2)O_(3)(R)respectively,were used to support gold *** surface ofα-Fe_(2)O_(3)(R)was more corrugated than that ofα-Fe_(2)O_(3)(S).These defects provide anchoring sites for gold nanoparticle deposition and *** to the stronger gold-support interactions,Au/α-Fe_(2)O_(3)(R)contained smaller and more hemispherical gold particles than Au/α-Fe_(2)O_(3)(S).Au/α-Fe_(2)O_(3)(R)was not only more active in CO oxidation but also much more stable as evident from the small change in gold particle size during *** higher reducibility of Au/α-Fe_(2)O_(3)(R)also contributed to the higher CO oxidation activity.

关键词： Gold CO oxidation Hematite Morphology Stability

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二氧化钛-钒酸铋复合材料光催化降解布洛芬的研究

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无机盐工业 2019年第6期51卷 88-91页

作者：高雅男河北化工医药职业技术学院化学与环境工程系

为综合二氧化钛、钒酸铋光催化剂的性能,制备了二氧化钛-钒酸铋复合光催化剂,并以布洛芬为目标降解物,与二氧化钛、钒酸铋光催化剂的光催化性能进行了对比。以钛酸丁酯为原料,加入无水乙醇、盐酸、去离子水,采用凝胶法制备了二氧化钛光... 详细信息

为综合二氧化钛、钒酸铋光催化剂的性能,制备了二氧化钛-钒酸铋复合光催化剂,并以布洛芬为目标降解物,与二氧化钛、钒酸铋光催化剂的光催化性能进行了对比。以钛酸丁酯为原料,加入无水乙醇、盐酸、去离子水,采用凝胶法制备了二氧化钛光催化剂;以五水硝酸铋、偏钒酸铵为原料,加入浓硝酸、氢氧化钠,制备了钒酸铋、二氧化钛-钒酸铋复合光催化剂。此制备方法简便、高效。在可见光照射下,使用二氧化钛、钒酸铋、二氧化钛-钒酸铋3种光催化剂对布洛芬进行光催化降解,并将3种光催化剂分别联合过氧化氢对布洛芬进行光催化降解,考察了3种光催化剂的光催化性能。结果表明,未加入过氧化氢条件下,3种光催化剂的光催化性能由大到小的顺序为二氧化钛-钒酸铋、二氧化钛、钒酸铋;加入电子捕获剂过氧化氢后,提高了光催化剂降解布洛芬的效率,减少了电子-空穴对的复合速度,并且3种光催化剂的光催化性能由大到小的顺序为二氧化钛-钒酸铋、钒酸铋、二氧化钛。

关键词：二氧化钛钒酸铋二氧化钛-钒酸铋复合材料布洛芬光催化性能

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行走人群-结构相互作用模型研究

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振动与冲击 2016年第23期35卷 153-159页

作者：高延安杨庆山北京交通大学土木建筑工程学院结构风工程与城市风环境北京市重点实验室北京100044

人群中每个行人简化为一个集中质量和两个弹簧阻尼器腿的模型,利用拉格拉日方程建立了多人行走状态下的人群-结构相互作用模型。首先利用该模型研究了人群引起结构的响应和人群-结构系统的模态特性改变,然后分析了结构响应和系统模态随... 详细信息

人群中每个行人简化为一个集中质量和两个弹簧阻尼器腿的模型,利用拉格拉日方程建立了多人行走状态下的人群-结构相互作用模型。首先利用该模型研究了人群引起结构的响应和人群-结构系统的模态特性改变,然后分析了结构响应和系统模态随着人群数量的变化而改变,最后比较了在队列和并排两种不同行走状态下人群结构系统的响应和模态特性的变化。数值分析表明结构的响应和模态特性随着人群数目增加而变化增大,然而行人在结构上分布较为均匀的纵向行走方式能够有效降低结构的响应,为减轻结构的剧烈波动,在人行桥设计时建议采用窄的截面宽度或者在桥面上设置纵向疏导设施以避免人流集中对结构的不利影响。

关键词：数值模拟人群-结构相互作用模态特征结构响应人群行走方式

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采动影响下损伤煤岩体峰后渗透率演化模型研究

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中国矿业大学学报 2017年第3期46卷 521-527页

作者：薛熠高峰高亚楠梁鑫中国矿业大学深部岩土力学与地下工程国家重点实验室江苏徐州221116

在对比分析煤岩体峰前和峰后阶段渗透率演化规律差异的基础上,通过考虑开挖损伤对煤岩体渗透率的影响,基于裂隙平板模型建立了考虑损伤效应的峰后煤岩体渗透率模型;将实验测试数据与渗透率模型计算结果进行对比分析,验证了渗透率模型的... 详细信息

在对比分析煤岩体峰前和峰后阶段渗透率演化规律差异的基础上,通过考虑开挖损伤对煤岩体渗透率的影响,基于裂隙平板模型建立了考虑损伤效应的峰后煤岩体渗透率模型;将实验测试数据与渗透率模型计算结果进行对比分析,验证了渗透率模型的合理性.基于此模型,具体分析了3种典型开采方式下(保护层开采,放顶煤开采和无煤柱开采)工作面前方煤岩体渗透率分布特征.研究结果表明:峰前和峰后阶段煤岩体渗透率均随应力呈现指数增长趋势,但两者在增长量上存在明显不同;根据渗透率分布特征,可以将工作面前方煤岩体划分为4个区域:渗流开放区,渗流屏蔽区,渗流过渡区和原岩渗流区;3种开采方式对工作面前方煤岩体的瓦斯渗流影响规律相似,但是在影响区域范围上存在较大差异.

关键词：工作面开挖损伤渗透率模型采动卸压

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