检索结果-南通市图书馆

Genetic regulators of leaf size in Brassica crops

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2021年第1期8卷 1581-1591页

作者： Umer Karamat xiaoxue sun Na Li Jianjun Zhao State Key Laboratory of North China Crop Improvement and Regulation Key Laboratory of Vegetable Germplasm Innovation and Utilization of HebeiCollaborative Innovation Center of Vegetable Industry in HebeiCollege of HorticultureHebei Agricultural University071000 BaodingChina

Leaf size influences plant development and biomass and is also an important agricultural trait in Brassica crops,in which leaves are the main organ produced for *** size is determined by the coordinated regulation of cell proliferation and cell expansion during leaf development,and these processes are strictly controlled by various integrated signals from the intrinsic regulatory network and the growth *** the molecular mechanism of leaf size control is a prerequisite for molecular breeding for crop improvement *** research on leaf size control is just beginning in Brassica,recent studies have identified several genes and QTLs that are important in leaf size *** genes have been proposed to influence leaf growth through different pathways and mechanisms,including phytohormone biosynthesis and signaling,transcription regulation,small RNAs,and *** this review,we summarize the current findings regarding the genetic regulators of leaf size in Brassica and discuss future prospects for this research.

关键词： crops breeding size

Reusable salt-template strategy for synthesis of porous nitrogen-rich carbon boosts H_(2)S selective oxidation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Green Energy & Environment 2024年第12期9卷 1866-1877页

作者： Xu Liu Liang Shan xiaoxue sun Tianxin Wang Zhongqing Liu Yuefeng Liu College of Chemical Engineering Sichuan UniversityChengdu610065China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian116023China College of Chemical Engineering Shenyang University of Chemical TechnologyShenyang110142China

Removing hydrogen sulfide(H_(2)S)via the selective oxidation has been considered an effective way to further purify the indusial sulfurcontaining due to it can completely transform residual H_(2)S into elemental *** N-doped porous carbon was applied to H_(2)S selective oxidation,a sustainable methodology for the synthesis of efficient and stable N-doped carbon catalysts remains a difficulty,limiting its future development in large-scale ***,we present porous,honeycomb-like N-doped carbon catalysts with large specific surface areas,high pyridinic N content,and numerous structural defects for H_(2)S selective oxidation prepared using reusable NaCl as the *** asprepared NC-10-800 catalyst exhibits excellent catalytic performance(sulfur formation rate of 784 g_(sulfur) kg_(cat.)^(-1) h^(-1)),outstanding stability(>100 h),and excellent anti-water vapor,anti-CO_(2) and anti-oxidation properties,suggesting significant potential for practical industrial *** characterization results and kinetic study demonstrate that the large surface areas and structural defects created by the molten salt at high temperature enhance the exposure of pyridinic N sites and thus accelerate the catalytic ***,the water-soluble NaCl template could be easily washed from the carbon nanomaterials,and thus the downstream salt-containing wastewater could be subsequently reused for the dissolution of carbon *** environment-friendly,low-cost,reusable salt-template strategy has significant implications for the development of N-doped carbon catalysts for practical applications.

关键词： H_(2)S selective oxidation Nitrogen-doped carbon Reusable salt-template Green synthesis Porous carbon nanomaterials

Genome-wide transcriptome analysis reveals molecular pathways involved in leafy head formation of Chinese cabbage(Brassica rapa)

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2019年第1期6卷 95-107页

作者： xiaoxue sun Ram Kumar Basnet Zhichun Yan Johan Bucher Chengcheng Cai Jianjun Zhao Guusje Bonnema Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei Collaborative Innovation Center of Vegetable Industry in HebeiDepartment of HorticultureHebei Agricultural UniversityBaoding 071001China Plant Breeding Wageningen University and ResearchWageningen 6708PBThe Netherlands Quantitative genetics department Rijk Zwaan Breeding B.V.Eerste Kruisweg 9Fijnaart 4793 RSThe Netherlands

Chinese cabbage plants go through seedling and rosette stages before forming their leafy *** cabbage plants resemble pak-choi plants at their seedling stage,but in their rosette stage the leaves of Chinese cabbage differentiate,as they increase in size with shorter *** order to understand the molecular pathways that play a role in leafy head formation,transcript abundance of young emerging leaves was profiled during development of two Chinese cabbage genotypes and a single pak-choi *** two Chinese cabbages differed in many aspects,among others earliness,leaf size and shape,leaf numbers,and leafy head ***-wide transcriptome analysis clearly separated the seedling stages of all three genotypes together with the later stages from pak-choi,from the later developmental stages of both Chinese cabbages(rosette,folding,and heading).Weighted correlation network analysis and hierarchical clustering using Euclidean distances resulted in gene clusters with transcript abundance patterns distinguishing the two Chinese cabbages from *** clusters included genes with transcript abundance affected by both genotype and developmental stage,whereas two clusters showed only genotype *** included a genotype by developmental stage cluster highly enriched with the MapMan category photosynthesis,with high expression during rosette and folding in Chinese cabbages and low expression in the heading inner leaves that are not exposed to *** other clusters contained many genes in the MapMan categories Cell,showing again differences between pak-choi and both Chinese *** discuss how this relates to the differences in leaf blade growth between Chinese cabbage and pak-choi,especially at the rosette ***,comparison of the transcriptome between leaves of two very different Chinese cabbages with pak-choi during plant development allowed the identification of specific gene categories associated with leafy head formation.

关键词： seedling heading analysis

Genetic analysis of the “head top shape” quality trait of Chinese cabbage and its association with rosette leaf variation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2021年第1期8卷 1374-1385页

作者： xiaoxue sun Ying Gao Yin Lu Xiaomeng Zhang Shuangxia Luo Xing Li Mengyang Liu Daling Feng Aixia Gu Xueping Chen Shuxin Xuan Yanhua Wang Shuxing Shen Guusje Bonnema Jianjun Zhao State Key Laboratory of North China Crop Improvement and Regulation Key Laboratory of Vegetable Germplasm Innovation and Utilization of HebeiCollaborative Innovation Center of Vegetable Industry in HebeiCollege of HorticultureHebei Agricultural University071000 BaodingChina Plant Breeding Wageningen University and ResearchWageningenThe Netherlands

The agricultural and consumer quality of Chinese cabbage is determined by its *** shape is defined by the folding of the heading leaves,which defines the head top shape(HTS).The overlapping HTS,in which the heading leaves curve inward and overlap at the top,is the shape preferred by *** understand the genetic regulation of HTS,we generated a large segregating F 2 population from a cross between pak choi and Chinese cabbage,with phenotypes ranging from nonheading to heading with either outward curving or inward curving overlapping heading *** was correlated with plant height,outer/rosette leaf length,and petiole length.A high-density genetic map was *** trait locus(QTL)analysis resulted in the identification of 22 QTLs for leafy head-related traits,which included five HTS *** segregant analysis(BSA)was used to confirm HTS QTLs and identify candidate genes based on informative single-nucleotide ***,the HTS QTLs colocalized with QTLs for plant height,outer/rosette leaf,and petiole length,consistent with the observed phenotypic *** QTL analysis and BSA laid a foundation for molecular marker-assisted breeding of Chinese cabbage HTS and directions for further research on the genetic regulation of this trait.

关键词： heading trait breeding

Assessing the corrosion protection property of coatings loaded with corrosion inhibitors using the real-time atmospheric corrosion monitoring technique

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 119-126页

作者： xiaoxue Wang Lulu Jin Jinke Wang Rongqiao Wang Xiuchun Liu Kai Gao Jingli sun Yong Yuan Lingwei Ma Hongchang Qian Dawei Zhang School of Energy and Power Engineering Beihang UniversityBeijing 100191China Beijing Institute of Space Long March Vehicle Beijing 100076China National Materials Corrosion and Protection Data Center University of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Shanghai Spaceflight Precision Machinery Institute Shanghai 201600China

The atmospheric corrosion monitoring(ACM)technique has been widely employed to track the real-time corrosion behavior of metal ***,limited studies have applied ACM to the corrosion protection properties of organic *** study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors,both applied on ACM sensors,to observe their corrosion protection properties over *** with artificial damage via scratches were exposed to immersion and alternating dry and wet environments,which allowed for monitoring galvanic corrosion currents in *** the corrosion tests,the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy *** trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface *** alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic *** with the blank epoxy coating,the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.

关键词： atmospheric corrosion monitoring technology corrosion inhibitor coating carbon steel corrosion protection

在线全文

学校读者我要写书评

暂无评论

量词与复数表达的关联

当代语言学 2021年第2期23卷 239-258页

作者：孙晓雪浙江大学中文系

本文考察中国境内140种语言(含汉语方言)的量词与复数表达的类型学特征。在区分量词发达型、较发达型和不发达型三种类型语言的基础上,本文指出,形态手段是复数表达最常见的手段,但量词的发达程度与名词复数表达的形态手段之间存在一定... 详细信息

本文考察中国境内140种语言(含汉语方言)的量词与复数表达的类型学特征。在区分量词发达型、较发达型和不发达型三种类型语言的基础上,本文指出,形态手段是复数表达最常见的手段,但量词的发达程度与名词复数表达的形态手段之间存在一定程度的张力。量词发达型语言复数表达手段以集合量词/不定量词、词缀为主,量词不发达型语言则以后缀、重叠为主。与Dryer(2013)统计结果所呈现的世界语言情况不同,中国境内量词发达型语言中复数标志前置于名词(词根)的语序更为常见。文章得出以下语言共性:1)若一种语言的复数标志前置于名词,那么此种语言很可能符合"数-名"语序;但若复数标志后置于名词,此种语言不一定符合"名-数"语序;2)在数词前置于名词且集合量词作复数标志的语言中,复数标志前置是无标记形式,后置则是有标记形式。

关键词：复数表达集合量词不定量词语序类型学

在线全文

学校读者我要写书评

暂无评论

从分配正义到承认正义:学校内部公平的转向

当代教育科学 2022年第2期 10-16页

作者：孙晓雪华东师范大学教育学系

随着优质教育公平时期的到来,承认正义从微观过程中弥补分配正义的相对优势作用,逐渐获得认可。相对于偏向宏观制度保障的分配正义,承认正义将实践教育公平的重点置于教育过程中的承认和满足,从祛除蔑视和促进承认两个维度构建学校内部... 详细信息

随着优质教育公平时期的到来,承认正义从微观过程中弥补分配正义的相对优势作用,逐渐获得认可。相对于偏向宏观制度保障的分配正义,承认正义将实践教育公平的重点置于教育过程中的承认和满足,从祛除蔑视和促进承认两个维度构建学校内部公平体系。尊重学生基本权利、满足爱的需要、开放评价体系、承认多元能力,是实现学校内部公平的主要抓手。

关键词：教育公平分配正义承认正义

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

基于绩效考量的地方零基预算改革研究

经济纵横 2024年第2期 107-115页

作者：马蔡琛孙小雪南开大学经济学院天津300071

零基预算是缓解财政收支压力、深化预算管理制度改革的重要手段。近年来,财政收支矛盾较为突出,关于零基预算理论与实践的探索不断深入。文章通过对零基预算的作用机理、地方零基预算改革的实践进展及地方预算支出的变化趋势展开三重分... 详细信息

零基预算是缓解财政收支压力、深化预算管理制度改革的重要手段。近年来,财政收支矛盾较为突出,关于零基预算理论与实践的探索不断深入。文章通过对零基预算的作用机理、地方零基预算改革的实践进展及地方预算支出的变化趋势展开三重分析,认为零基预算制度改革在实践中不断向纵深推进,对调整地方预算支出的规模与结构均产生了积极影响,但仍有一定进步空间。基于此,应推动构建零基础、保重点的预算资金安排机制,全方位完善零基预算审查制度,促进零基预算与绩效管理深度融合,从而构建以绩效为导向的新型零基预算管理模式。

关键词：零基预算预算绩效管理地方预算支出现代预算制度

Construction of a high-density mutant population of Chinese cabbage facilitates the genetic dissection of agronomic traits

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2022年第5期15卷 913-924页

作者： xiaoxue sun Xing Li Yin Lu Shan Wang Xiaomeng Zhang Kang Zhang Xiangjie Su Mengyang Liu Daling Feng Shuangxia Luo Aixia Gu Yu Fu Xueping Chen Shuxin Xuan Yanhua Wang Donghui Xu Shumin Chen Wei Ma Shuxing Shen Feng Cheng Jianjun Zhao State Key Laboratory of North China Crop Improvement and Regulation Key Laboratory of Vegetable Germplasm Innovation and Utilization of HebeiCollaborative Innovation Center of Vegetable Industry in HebeiCollege of HorticultureHebei Agricultural UniversityBaoding 071000China Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture and Rural AffairsSino-Dutch Joint Laboratory of Horticultural GenomicsBeijing 271000China

Chinese cabbage(Brassica rapa ***)is an economically important vegetable crop throughout the world,especially in ***-quality genome sequences are available for Chinese cabbage,but gene functional studies remain *** promote functional genomic studies of Chinese cabbage,we generated an ethyl methane sulfonate(EMS)mutant population of~8000 M_(2) plants using the double haploid inbred line A03 as the *** genome of A03 was sequenced and used as a reference for high-throughput functional characterization of gene mutations at the whole-genome level.A total of 300 M_(2) to M_(5) EMS mutants were phenotypically screened and then sequenced,revealing 750629 SNPs and 46272 InDel mutations that cover 98.27%of all predicted genes in the A03 genome.A forward-genetics approach was successfully used to identify two genes with chloroplast-related functions that are responsible for the yellow leaf mutant trait.A reverse-genetics approach was also used to identify associations between mutations in five genes of the glucosinolate biosynthetic pathway and variations in glucosinolate content of the mutant *** addition,we built the Chinese cabbage EMS mutation database(CCEMD,***/EMSmutation/home)to increase the usability of this mutant population *** summary,we performed large-scale screening of a heading Chinese cabbage EMS mutant collection at the phenotypic and genotypic levels,which will facilitate gene mining of Chinese cabbage and might also be useful for the study of other Brassica crops.

关键词： Chinese cabbage EMS morphological variations whole-genome sequencing functional genomics