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Integrated transcriptomics and metabolomics analyses provide insights into cold stress response in wheat

The Crop Journal 2019年第6期7卷 857-866页

作者： Yong Zhao Meng Zhou Ke Xu Jiahao Li Shanshan Li Shuhua Zhang xueju yang Huabei Key Laboratory of Crop Germplasm Hebei Agricultural UniversityBaoding 071000HebeiChina College of Life Sciences Hebei UniversityBaoding 071000HebeiChina

Cold tolerance of crop plants influences survival and productivity under low-temperature conditions. Elucidation of molecular mechanisms underlying low temperature tolerance could be helpful in breeding. In this study, we used integrated transcriptomics and metabolomics analyses to investigate changes in gene/metabolite activity in a winter-hardy wheat cultivar of(cv. Jing 411) when subjected to sold stress. The 223 metabolites mainly enriched during cold acclimation included carbohydrates, flavonoids, and amino *** common metabolites had altered abundance following freezing treatment;six increased and two decreased. Transcriptome analysis revealed that 29,066 genes were differentially expressed in wheat crowns after cold acclimation compared to the nonacclimated control. Among them, 745 genes were up-regulated following freezing treatment, suggesting substantial change in expression of a large quantity of genes upon cold acclimation and freezing treatment, which impacts on the modified *** analysis of gene expression and metabolite profiles revealed that the abscisic acid(ABA)/jasmonic acid(JA) phytohormone signaling and proline biosynthesis pathways were significantly modulated under cold acclimation and freezing treatments. Our results indicated that low-temperature stress induced substantial changes in both transcriptomes and metabolomes. Critical pathways associated with ABA/JA signaling and proline biosynthesis played important roles in regulating cold tolerance in wheat.

关键词： Cold tolerance Transcriptome Metabolome Abscisic acid Jasmonic acid Signaling pathways

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Quantitative Trait Loci for the Diurnal Flag Leaf Starch Content during the Early Grain-filling Stage in Wheat(Triticum aestivum L.)

Quantitative Trait Loci for the Diurnal Flag Leaf Starch Con...

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2017年中国作物学会学术年会

作者： Yong Zhao Jie Wang Ruiling Zhao Xiaoyun Li Xuefang yang Shuhua Zhang Jichun Tian xueju yang Huabei Key Laboratory of Crop Germplasm Hebei Agricultural University Shandong Agricultural University

Starch is a product of photosynthetic activities in *** yields largely depend on photosynthetic carbon fixation and carbohydrate metabolism in flag *** mapping of quantitative trait loci(QTLs) associated with flag leaf starch content(FLSC) in wheat(Triticum aestivum L.) was completed using unconditional and conditional QTL *** FLSC of this population during the early grain-filling stage was measured at six stages in six *** unconditional and conditional QTL mapping methods,eight unconditional QTLs and nine conditional QTLs were detected,with five QTLs identified as unconditional and conditional *** unconditional QTLs(i.e.,qFLS-1 B,qFLS-1 D-1,qFLS-4 A,and qFLS-7 D-1) and one conditional QTL(i.e.,qFLS-3 A-1) were identified in two of six *** QTLs(qFLS-1 D-2 and qFLS-7 D-1),which significantly affected the FLSC,were identified using the unconditional QTL mapping method,while three QTLs(i.e.,qFLS-1 A,qFLS-3 A-1,and qFLS-7 D-1) were detected using the conditional QTL mapping *** findings provide new insights into the genetic mechanism and regulatory network underlying the diurnal FLSC in wheat.

关键词： wheat(Triticum aestivum L.) quantitative trait loci developmental behaviour starch

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小麦种质多酚氧化酶的遗传变异及抗穂发芽品种的筛选

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中国农学通报 2011年第7期27卷 55-58页

作者：赵勇杨学举河北农业大学农学院河北保定071001 河北农业大学生命科学学院河北保定071001 河北省作物种质资源实验室河北保定071001

为了研究中国小麦品种资源多酚氧化酶(PPO)活性的变异,并对部分主推小麦品种的抗穗发芽能力进行评价和筛选,选用195份小麦种质资源和24份主推小麦品种,采用籽粒法测定了其多酚氧化酶(PPO)的活性。结果表明,供试小麦资源PPO活性表现出较... 详细信息

为了研究中国小麦品种资源多酚氧化酶(PPO)活性的变异,并对部分主推小麦品种的抗穗发芽能力进行评价和筛选,选用195份小麦种质资源和24份主推小麦品种,采用籽粒法测定了其多酚氧化酶(PPO)的活性。结果表明,供试小麦资源PPO活性表现出较大的变异,变异范围为4.95～13.99AU/(min·g),变异系数为21.4%,表明小麦PPO活性遗传改良具有很大的潜力;我国主推小麦品种之间的PPO活性差异较大,筛选出‘中麦9’,‘京9428’,‘冀麦38’,‘陕229’,‘宁麦9’,‘川麦47’等PPO活性较低的品种,可以鉴定为抗穗发芽能力较强的品种。

关键词：小麦多酚氧化酶活性穗发芽抗性品种筛选

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小麦淀粉特性与面包烘烤品质的相关性

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中国粮油学报 2005年第2期20卷 12-15页

作者：杨学举杜朝刘广田河北农业大学生命科学学院保定071001 中国农业大学农学与生物技术学院北京100094

利用国内外40个面包小麦品种(系)进行了淀粉性状与面包烘烤品质性状的相关性分析,比较了国内外小麦在加工品质和淀粉性状的差异。结果表明,直链淀粉含量与面包品质性状(Zeleny沉淀值、面团形成时间和稳定时间)呈极显著负相关;淀粉总量... 详细信息

利用国内外40个面包小麦品种(系)进行了淀粉性状与面包烘烤品质性状的相关性分析,比较了国内外小麦在加工品质和淀粉性状的差异。结果表明,直链淀粉含量与面包品质性状(Zeleny沉淀值、面团形成时间和稳定时间)呈极显著负相关;淀粉总量与面包品质性状呈负相关,但相关不显著;面粉膨胀势与面包品质性状呈极显著正相关。国内外小麦品种(系)相比,Zeleny沉淀值、面团形成时间和稳定时间等性状差异较大;在淀粉性状和面包品质性状上,国外小麦品种(系)明显优于国内材料。讨论认为,蛋白质和淀粉对小麦的面包烘烤品质都有一定的影响。直链淀粉含量、支链淀粉含量和膨胀势可作为小麦品质育种亲本选配、后代选择的指标。改良我国小麦淀粉的主要目标是降低直链淀粉含量。

关键词：面包烘烤品质淀粉特性小麦品种(系) 面团形成时间低直链淀粉含量品质性状淀粉性状稳定时间相关性分析国内外加工品质性状差异亲本选配品质育种后代选择小麦淀粉沉淀值负相关膨胀势正相关蛋白质面粉

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Anomalous quality factor evolution of induced transparency in a virtualized coupled-oscillator system

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 144-151页

作者： Yunhan yang Han Jia Tuo Liu Yuzhen yang Jun yang Key Laboratory of Noise and Vibration Research Institute of AcousticsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China

The phenomenon of induced transparency,characterized by a high quality(Q)factor,holds significant importance in the fields of high-precision sensing,energy storage and wave *** transparency systems are often constrained by the limited experimentally accessible parameter space and the lack of independent control over intrinsic parameters,thereby hindering advanced research on high-Q *** we propose a virtualized coupled-oscillator system that enables reconfigurable induced transparency in the reflection *** virtually incorporating a pair of coupled oscillators into an individual acoustic meta-atom,we achieve the manipulation of induced transparency in a decoupled,wide-ranging,and elaborate *** the diverse evolutions across the intrinsic parameter space,we show experimentally a counter-intuitive increase in the Q-factor of the transparency window,which is attributed to the enhanced dissipation of the bright ***,a constant group delay at the center frequency is observed accompanying this *** work demonstrates an intriguing platform as well as a novel strategy to engineer high-Q induced transparency phenomenon,and paves the way towards applications in programmable acoustic sensors,filters and slow-wave devices.

关键词： induced transparency acoustic meta-atom high quality-factor scattering programmable intrinsic parameter

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贵州省农村三产融合发展对策研究

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热带农业工程 2021年第5期45卷 45-48页

作者：杨学菊朱晓凤贵州大学经济学院贵州贵阳550025

农村三产融合发展能促进各产业间要素流动,整合资源形成产业集群,扩大规模效应带动农村发展,促进农民增收、农业增效,最终实现农村美,农民富,农业强。在乡村振兴战略引领下,通过定性方法将贵州三产融合发展分为内部重组融合(农业内部的... 详细信息

农村三产融合发展能促进各产业间要素流动,整合资源形成产业集群,扩大规模效应带动农村发展,促进农民增收、农业增效,最终实现农村美,农民富,农业强。在乡村振兴战略引领下,通过定性方法将贵州三产融合发展分为内部重组融合(农业内部的组合发展)以及外部融合(三产间进行交叉融合发展)2种融合发展模式。依据贵州三产融合发展现状,发现存在产业间发展不协调、融合程度低、融合目的不明确以及人才匮乏等问题,并提出加快第一产业发展速度,提升三产融合衔接度,加快基层人才队伍建设、培育新型职业民,完善利益分配机制等建议,以期能为贵州农村三产融合发展提供参考。

关键词：乡村振兴战略贵州省农村三产融合发展

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Rapid reduction of air pollution and short-term exposure risks in China

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Journal of Environmental Sciences 2025年第3期149卷 126-138页

作者： Hao Fan Chuanfeng Zhao Yikun yang Xingchuan yang State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentBeijing Normal UniversityBeijing 100875China Laboratory for Climate and Ocean-Atmospheric Studies Department of Atmospheric and Oceanic SciencesSchool of PhysicsPeking UniversityBeijing 100871China College of Resource Environment and Tourism Capital Normal UniversityBeijing 100048China

With the continuous control of anthropogenic emissions,China’s air quality has improved significantly in recent *** this background,research on how the short-term exposure risks caused by air pollution in China have changed is *** study utilized hourly concentration data from ground observation stations and the official air quality guidelines of the Ministry of Ecology and Environment of China and the World Health Organization as standards to systematically investigate the spatiotemporal characteristics and short-term exposure risks of air pollution in China from 2015 to *** results indicate that various atmospheric pollutants except for ozone showed a decreasing trend ***,both single pollutant air pollution days(SAPDs)and multiple pollutant air pollution days(MAPDs)showed varying degrees of reduction within 15 and 25 days,*** was dominated mainly by excessive PM_(2.5)and PM_(10)pollutants,while MAPD was dominated mainly by excessive pollutant combinations,including PM_(2.5)+PM_(10),CO+PM_(2.5)+PM_(10),and SO_(2)+PM_(2.5)+PM_(10).As the concentration of atmospheric pollutants decreased,the total excess risk(ER)decreased yearly from 2015 to 2022,but there were significant regional ***,the ER is less than 0.25%in southern China,in the range of 0.25%-0.5%in the North China Plain and some cities in the northeast,and higher than 1%in the *** matter is currently the primary pollutant posing short-term exposure risk in China,especially due to the impact of sandstorm *** study indicates that China’s atmospheric cleaning action is significantly beneficial for reducing health risks.

关键词： Air pollution Emission-reduction Total excess risk Particulate matter China

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小麦面粉配粉对面团强度的影响

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中国粮油学报 2008年第3期23卷 34-37页

作者：杨学举陈笑娟张彩英张树华河北农业大学生命科学学院保定071001

选用9个在基因型和面筋强度上有明显差异的小麦品种,进行两两配粉试验,共形成36种配粉组合,每种组合的两种面粉按照9种比例配成9种混合面粉,测定每种混合面粉的Zeleny沉淀值,根据实测值和理论值统计中值改进率,分析配粉的品质效应。结... 详细信息

选用9个在基因型和面筋强度上有明显差异的小麦品种,进行两两配粉试验,共形成36种配粉组合,每种组合的两种面粉按照9种比例配成9种混合面粉,测定每种混合面粉的Zeleny沉淀值,根据实测值和理论值统计中值改进率,分析配粉的品质效应。结果表明,不同小麦面粉配粉后,Zeleny沉淀值不是两种面粉的简单相加,而是提高或降低面团强度(中值改进率为正值或负值);在每个配粉组合中,不同比例混合面粉的Zeleny沉淀值随着某一面粉比例的不断提高,中值改进率变化呈现出一定的规律性;在不同面粉配粉时,0.3:0.7,0.4:0.6,0.5:0.5三种比例面粉的面团强度变化幅度较大,即配粉的品质效应较大;强筋面粉与强筋面粉配粉,Zeleny沉淀值变化不大。中筋面粉与中筋面粉配粉,面筋强度倾向于降低。弱筋面粉与弱筋面粉配粉,面筋强度倾向于提高;强筋面粉与中筋面粉配粉,面筋强度倾向于降低;强筋面粉与弱筋面粉配粉,面筋强度倾向于降低;中筋面粉与弱筋面粉配粉,面筋强度有较大幅度的提高。

关键词：小麦面团强度配粉品质效应中值改进率

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钢丝网复合岩棉板作为外墙外保温体系的应用探讨

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工程质量 2017年第8期35卷 51-53,66页

作者：金学菊杨全兵甘肃省建筑科学研究院甘肃兰州730050 甘肃省绿色建筑与建筑节能工程研究中心甘肃兰州730050

总结了目前国内建筑外墙外保温体系的应用现状和性能指标,发现所用保温板很难达到与结构同等级、耐久性与建筑同寿命的要求。因此,提出外墙外保温体系应采用以无机材料生产合成的钢丝网复合岩棉板,这种外墙外保温材料不仅燃烧性能可以达... 详细信息

总结了目前国内建筑外墙外保温体系的应用现状和性能指标,发现所用保温板很难达到与结构同等级、耐久性与建筑同寿命的要求。因此,提出外墙外保温体系应采用以无机材料生产合成的钢丝网复合岩棉板,这种外墙外保温材料不仅燃烧性能可以达到A级,而且设计使用年限可以达到50年。同时对钢丝网复合岩棉板的性能指标和技术水平做了介绍,并提出了应用钢丝网复合岩棉板的配套技术。

关键词：钢丝网复合岩棉板外墙外保温防火性能耐久性

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Engineering strategies of biomaterial-assisted exosomes for skin wound repair:Latest advances and challenges

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Chinese Chemical Letters 2025年第1期36卷 99-109页

作者： yang Xu Le Ma yang Wang Chunmeng Shi Institute of Rocket Force Medicine State Key Laboratory of Trauma and Chemical PoisoningThird Military Medical University(Army Medical University)Chongqing 400038China

The treatment of skin wounds,especially chronic wounds,remains a critical clinical challenge and places a heavy burden on patients and healthcare *** recent years,the engineering strategy of using biomaterial-assisted exosomes has emerged as a powerful tool for skin *** to treatments such as debridement and regular dressing changes,the design of biomaterial-assisted exosomes not only maintains the bioactivity of exosomes at the wound site but also provides an appropriate microenvironment for the repair of complex tissues,thereby accelerating wound *** review systematically introduces the general characteristics of exosomes and their functions in skin wound healing,highlights recent advances in classification of natural exosomes and engineering methods which enriching their functions in intercellular ***,various emerging and innovative approaches based on biomaterials delivery of exosomes are comprehensively *** review seeks to bring an in-depth understanding of bioactive dressings based on exosomes therapeutic strategies,aiming to facilitate new clinical application value.

关键词： Exosomes Biomaterials Hydrogel Delivery system Wound healing

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