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Decrement of Sugar Consumption in Rice Young Panicle Under High Temperature Aggravates Spikelet Number Reduction

Rice science 2020年第1期27卷 44-55页

作者： WANG Yaliang zhang yikai SHI Qinghua CHEN Huizhe XIANG Jing HU Guohui CHEN Yanhua WANG Xiaodan WANG Junke YI Zihao ZHU Defeng zhang Yuping China National Rice Research Institute/State Key Laboratory of Rice Biology Hangzhou 310006China College of Agronomy Jiangxi Agricultural University/Key Laboratory of Crop PhysiologyEcology and Genetics BreedingMinistry of EducationNanchang 330045China

Two rice genotypes Huanghuazhan(HHZ, heat-resistant) and IR36(heat-susceptible) were subjected to high-temperature(HT, 40℃) and normal-temperature(NT, 32℃) treatments at the spikelet differentiation stage. HT treatment inhibited spikelet differentiation, aggravated spikelet degeneration, reduced spikelet size, and disordered carbohydrate allocation. Meanwhile, HT treatment increased nonstructural carbohydrate content in leaves, but decreased that in stems and young panicles, and the same tendencies of sucrose and starch contents were observed in leaves and stem. However, HT treatment significantly increased the sucrose content and sharply decreased the glucose and fructose contents in young panicles. Lower activity levels of soluble acid invertase(EC3.***.1.26) and sucrose synthase(EC2.***.1.13) were observed under HT treatment. Moreover, HT treatment reduced the activities of key enzymes associated with glycolysis and the tricarboxylic acid cycle, which indicated sucrose consumption was inhibited in young panicles under HT treatment. Exogenous glucose and fructose applied under HT treatment increased the spikelet number more than exogenous sucrose. In conclusion, the results demonstrated that the reduction of spikelet number under high temperature was more affected by the decrease in sugar consumption than the blocking of sucrose transport. The impairment of sucrose hydrolysis was the main reason for the inhibition of sugar utilization.

关键词： rice high temperature panicle development spikelet number carbohydrate allocation sugar consumption

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Genome-wide prediction for hybrids between parents with distinguished difference on exotic introgressions in Brassica napus

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The Crop Journal 2021年第5期9卷 1169-1178页

作者： Dandan Hu Yusheng Zhao Jinxiong Shen Xiangxiang He yikai zhang Yong Jiang Rod Snowdon Jinling Meng Jochen C.Reif Jun Zou National Key Laboratory of Crop Genetic Improvement College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Department of Breeding Research Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)Stadt Seeland 06466Germany Department of Plant Breeding IFZ Research Centre for BiosystemsLand Use and NutritionJustus Liebig UniversityGiessen 35392Germany

Extensive exotic introgression could significantly enlarge the genetic distance of hybrid parental populations to promote strong *** goal of this study was to investigate whether genome-wide prediction can support pre-breeding in populations with exotic *** evaluated seed yield,seed yield related traits and seed quality traits of 363 hybrids of Brassica napus (AACC) derived from two parental populations divergent on massive exotic introgression of related species in three *** hybrids presented strong heterosis on seed yield,which was much higher than other investigated *** genomic best linear unbiased prediction models considering the exotic introgression and different marker effects (additive,dominance,and epistatic effects) were constructed to test the prediction ability for different traits of the *** analysis showed that the trait complexity,exotic introgression,genetic relationship between the training set and testing set,training set size,and environments affected the prediction *** models with best prediction ability for different traits ***,relatively high prediction ability (e.g.,0.728 for seed yield) was also observed when the simplest models were used,excluding the effects of the special exotic introgression and epistasis effect by5-fold cross validation,which would simplify the prediction for the trait with complex architecture for hybrids with exotic *** results provide novel insights and strategies for genome-wide prediction of hybrids between genetically distinct parent groups with exotic introgressions.

关键词： Hybrid Genome-wide prediction Exotic introgression Brassica napus Heterosis

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水稻氮素营养诊断及施用策略研究进展

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杂交水稻 2024年第2期39卷 1-7页

作者：孙凯旋张玉屏向镜张义凯王亚梁熊家欢叶天承高义卓唐梅王志刚陈惠哲中国水稻研究所浙江杭州310006 广西壮族自治区农业科学院水稻研究所/广西水稻遗传育种重点实验室广西南宁530007

氮素是水稻生长不可缺少的元素之一,对水稻进行氮素诊断,根据诊断结果和栽培目标,及时调整相应施肥措施,实现精准施肥,可最大限度地提高肥料利用率,并减轻环境污染。综述了水稻氮素诊断的发展历史、诊断手段的优缺点、未来氮素诊断发展... 详细信息

氮素是水稻生长不可缺少的元素之一,对水稻进行氮素诊断,根据诊断结果和栽培目标,及时调整相应施肥措施,实现精准施肥,可最大限度地提高肥料利用率,并减轻环境污染。综述了水稻氮素诊断的发展历史、诊断手段的优缺点、未来氮素诊断发展趋势等多方面内容,分析了穗肥对于水稻产量、产量构成因素和稻米品质的影响,以期充分发挥氮肥效应,为氮素诊断和穗肥追肥提供参考。

关键词：水稻氮素诊断穗肥精准施肥

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Higher PD-1 expression concurrent with exhausted CD8+ T cells in patients with de novo acute myeloid leukemia

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Chinese Journal of Cancer Research 2017年第5期29卷 463-470页

作者： Jiaxiong Tan Shaohua Chen Yuhong Lu Danlin Yao Ling Xu yikai zhang Lijian Yang Jie Chen Jing Lai Zhi Yu Kanger Zhu Yangqiu Li Institute of Hematology School of Medicine Jinan University Department of Hematology the First Affiliated Hospital Jinan University Key Laboratory for Regenerative Medicine of Ministry of Education Jinan University

Objective： To investigate the association between the T cell inhibitory receptor programmed death 1（PD-1）and T cell exhaustion status in T cells from patients with de novo acute myeloid leukemia（AML） and AML in complete remission（CR）.Methods：Surface expression of PD-1 and the exhaustion and immunosenescence markers CD244 and CD57 on CD3＋,CD4＋ and CD8＋ T cells from peripheral blood samples from 20 newly diagnosed,untreated AML patients and 10 cases with AML in CR was analyzed by flow ***-three healthy individuals served as ***：A significantly higher percentage of PD-1＋ cells were found for CD3＋ T cells in the de novo AML group compared with healthy *** addition,an increased level of PD-1＋ CD8＋ T cells,but not PD-1＋ CD4＋,was found for CD3＋ T cells in the de novo AML and AML-CR samples.A higher percentage of CD244＋ CD4＋,CD244＋ CD8＋,CD57＋ CD4＋ and CD57＋ CD8＋ T cells was found in CD3＋ T cells in samples from those with de novo AML compared with those from healthy *** increased PD-1＋ CD244＋ and PD-1＋ CD57＋ coexpression was found for CD4＋ and CD8＋ T cells in the de novo AML group compared with healthy ***：We characterized the major T cell defects,including co-expression of PD-1 and CD244,CD57-exhausted T cells in patients with de novo AML,and found a particular influence on CD8＋ T cells,suggesting a poor anti-leukemia immune response in these patients.

关键词： Acute myeloid leukemia PD-1 T cell exhaustion

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Progress,challenges,and prospects of spent lithium-ion batteries recycling:A review

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Journal of Energy Chemistry 2024年第2期89卷 144-171,I0005页

作者： Pengwei Li Shaohua Luo Lin zhang Qiuyue Liu yikai Wang Yicheng Lin Can Xu Jia Guo Peam Cheali Xiaoning Xia School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Department of Chemistry and Bioscience Aalborg UniversityAalborg 9220Denmark Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004HebeiChina Department of Materials and Production Aalborg UniversityAalborg 9220Denmark School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The recycling and reutilization of spent lithium-ion batteries(LIBs)have become an important measure to alleviate problems like resource scarcity and environmental *** some progress has been made,battery recycling technology still faces challenges in terms of efficiency,effectiveness and environmental *** review aims to systematically review and analyze the current status of spent LIB recycling,and conduct a detailed comparison and evaluation of different recycling *** addition,this review introduces emerging recycling techniques,including deep eutectic solvents,molten salt roasting,and direct regeneration,with the intent of enhancing recycling efficiency and diminishing environmental ***,to increase the added value of recycled materials,this review proposes the concept of upgrading recycled materials into high value-added functional materials,such as catalysts,adsorbents,and *** life cycle assessment,the paper also explores the economic and environmental impacts of current battery recycling and highlights the importance that future recycling technologies should achieve a balance between recycling efficiency,economics and environmental ***,this review outlines the opportunities and challenges of recycling key materials for next-generation batteries,and proposes relevant policy recommendations to promote the green and sustainable development of batteries,circular economy,and ecological civilization.

关键词： Spent li-ion batteries Recycle Direct regeneration High-value conversion Functional materials

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Effects of calendering state on coupled electrochemical-mechanical performance of silicon based composite electrodes

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Green Energy and Intelligent Transportation 2024年第5期3卷 34-41页

作者： Dawei Li Hongfei Wan Jiahui Liu Hainan Jiang yikai Wang Junqian zhang Yuejiu Zheng School of Mechanical Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Engineering Physics Tsinghua UniversityBeijing100084China Department of Chemical and Materials Engineering University of KentuckyLexingtonKY 40506USA Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China

The super volume changes and severe mechanical degradation have been a hindrance in the wide application of silicon based composite electrodes in commercial lithium-ion batteries(LIBs).Calendering,one procedure in producing LIBs'electrodes,is indispensable to ensure low porosity and energy ***,the repercussions of the calendering process on the physical characteristics related to the behavior of silicon(Si)based electrodes during the electrochemical reaction have not been well ***,on account of the deformation characteristic of cantilever electrodes,an in-situ technique is employed to analyze the repercussions of calendering status on the coupled electro-chemo-mechanical *** the electrochemical cycling,Young's modulus and diffusion-induced stress in composite electrodes are *** results show that the swelling strain,the stress and the modulus of the Si-based electrode and the calendering degree are positively ***,the stress induced by diffusion in the active layer tends to increase in the stage of lithiation and reverses during the delithiation *** with the SEM analysis,we conclude that the calendering process can induce larger stress,driving the formation of cracks in *** findings can help understand how the calendering process could affect the capacity dissipating and lifetime of Si based electrodes.

关键词： Calendering degree In situ measurement Coupled electro-mechan-chemical properties Si composite electrode Stress evolution

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水田覆膜直播压槽与覆盖物对水稻出苗的影响

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中国稻米 2024年第3期30卷 63-66页

作者：熊雪曹雪仙向镜陈惠哲武辉张义凯王亚梁王志刚王晶卿徐一成赵福建张玉屏中国水稻研究所/水稻生物育种全国重点实验室杭州310006 宜宾学院四川宜宾644000 天台县农业技术推广总站浙江天台317200 浙江家乐蜜园艺科技有限公司浙江绍兴312000

为探讨水田覆膜直播压槽与覆盖物对土壤温度、出苗率及秧苗素质的影响,以籼型常规水稻中早39为材料,进行了池栽模拟试验。结果表明,膜上压槽及覆盖能提高土壤温度、缩短出苗时间;在体积较大的覆盖物中加入一定基质有利于提高秧苗素质和... 详细信息

为探讨水田覆膜直播压槽与覆盖物对土壤温度、出苗率及秧苗素质的影响,以籼型常规水稻中早39为材料,进行了池栽模拟试验。结果表明,膜上压槽及覆盖能提高土壤温度、缩短出苗时间;在体积较大的覆盖物中加入一定基质有利于提高秧苗素质和干物质积累;在体积较小的覆盖物中加入基质对秧苗素质影响不大。本研究中,条播条件下,每1 m覆盖205.9 mL细沙的处理出苗齐、快,秧苗更壮。

关键词：水稻直播覆膜覆盖物秧苗素质

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Ultra-wideband and Visual Odometry Based Relative Localization for Multi-UAV System

Ultra-wideband and Visual Odometry Based Relative Localizati...

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第三十九届中国控制会议

作者： yikai zhang Bailing Tian Hongming Chen School of Electrical and Information Engineering Tianjin University

This paper proposes a relative localization algorithm for Multi-UAV system, in which each agent is able to estimate the relative position of its neighbor based on Ultra-wideband measurement and visual odometry information exchanged. The relative localization algorithm consists of two parts. Visual odometry pre-process part fuses the IMU data and radar altimeter data to correct visual odometry error and reach a higher update rate to ensure flight smoothly and a better state *** the UWB measurement and information exchanged, each agent constructs a graph to solve relative localization problem in sliding window. Finally, experimental results are presented to corroborate the effectiveness of our proposed relative localization algorithm.

关键词： Ultra-wideband relative localization Visual Odometry Multi-UAV system

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Expression and clinical significance of pattern recognition receptor-associated genes in hand, foot and mouth disease

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Asian Pacific Journal of Tropical Medicine 2024年第4期17卷 173-183,I0001-I0003页

作者： Muqi Wang Huiling Deng Yuan Chen yikai Wang Yufeng zhang Chenrui Liu Meng zhang Ting Li Shuangsuo Dang Yaping Li Department of Infectious Diseases The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'an 710004China Department of Pediatrics Xi'an Central HospitalXi'an 710004China Department of Infectious Diseases Xi'an Children's HospitalXi'an 710003China

Objective:To explore which pattern recognition receptors(PRRs)play a key role in the development of hand,foot,and mouth disease(HFMD)by analyzing PRR-associated ***:We conducted a comparative analysis of PRR-associated gene expression in human peripheral blood mononuclear cells(PBMCs)infected with enterovirus 71(EV-A71)which were derived from patients with HFMD of different severities and at different stages.A total of 30 PRR-associated genes were identified as significantly upregulated both over time and across different EV-A71 ***,ELISA was employed to quantify the expression of the six most prominent genes among these 30 identified genes,specifically,BST2,IRF7,IFI16,TRIM21,MX1,and ***:Compared with those at the recovery stage,the expression levels of BST2(P=0.027),IFI16(P=0.016),MX1(P=0.046)and DDX58(P=0.008)in the acute stage of infection were significantly upregulated,while no significant difference in the expression levels of IRF7(P=0.495)and TRIM21(P=0.071)was found between different stages of the *** expression levels of BST2,IRF7,IFI16 and MX1 were significantly higher in children infected with single pathogen than those infected with mixed pathogens,and BST2,IRF7,IFI16 and MX1 expression levels were significantly lower in coxsackie B virus(COXB)positive patients than the negative *** levels of one or more of BST2,IRF7,IFI16,TRIM21,MX1 and DDX58 genes were correlated with PCT levels,various white blood cell counts,and serum antibody levels that reflect disease course of *** aminotransferase was correlated with BST2,MX1 and DDX58 expression ***:PRR-associated genes likely initiate the immune response in patients at the acute stage of HFMD.

关键词： Pattern recognition receptors(PRRs) Hand,foot,and mouth disease(HFMD) Immune Enterovirus 71(EV-A71)

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Maternal High-Fat Diet Impairs Offspring Glucose Metabolism and Programs Hepatic DNA Methylation Linked to NK Cell-Mediated Cytotoxicity Signaling Pathway at Weaning

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Food Science and Human Wellness 2024年

作者： Sheng Zheng Ling zhang Shixuan zhang Guanyu Hu yikai Li Jia Zheng Department of Traditional Chinese Orthopedics and Traumatology， Center for Orthopedic Surgery， The Third Affiliated Hospital of Southern Medical University Department of Endocrinology， Peking University First Hospital

Maternal consumption of a high-fat diet has been linked to increased risks of obesity and impaired glucose metabolism in offspring. However， the precise epigenetic mechanisms governing these intergenerational effects， particularly during the early stages of offspring development， remain poorly understood. In this study， female C57BL/6J mice were randomly assigned to either a high-fat diet or normal chow diet throughout gestation and lactation. Methylated DNA immunoprecipitation (MeDIP) coupled with microarray analysis was employed to identify differentially methylated genes in the livers of offspring at weaning age. We found that maternal high-fat diet feeding predisposes offspring to obesity and impaired glucose metabolism as early as the weaning period. DNA methylation profile analysis unveiled a significant enrichment of differentially methylated genes within the natural killer (NK) cell-mediated cytotoxicity pathway. MeDIP-PCR validated reduced methylation levels of specific genes within this pathway， including TNFα， PI3K， and SHC1. Consistently， the expressions of TNFα， PI3K， and SHC1 were significantly upregulated， accompanied by elevated serum TNFα and IL-6 levels in offspring from dams fed with high-fat diet. Moreover， we assessed the expressions of genes associated with NK cell activities， uncovering a notable rise in hepatic granzyme B levels and a trend towards increased CD107a expression in offspring from dams fed a high-fat diet. In addition， methylation levels of TNFα， PI3K， and SHC1 promoters were inversely correlated with glucose response during glucose tolerance testing. In conclusion， our findings underscore the critical role of the NK cell-mediated cytotoxicity signaling pathway in mediating DNA methylation patterns， thereby contributing to the programming effects of maternal high-fat diet consumption on offspring glucose metabolism as early as the weaning period.

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