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Dna methylation controlling abscisic acid catabolism responds to light to mediate strawberry fruit ripening

Journal of Integrative Plant Biology 2024年第8期66卷 1718-1734页

作者： Yunfan Sun Xiaofang Yang Rongrong Wu Shouzheng Lv Yunduan Li haoran Jia Yuying Yang Baijun Li Wenbo chen Andrew c.Allan Guihua Jiang Yan-na Shi Kunsong chen college of Agriculture&Biotechnology Zhejiang UniversityZijingang CampusHangzhou 310058China Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiang 310021China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology Zhejiang UniversityZijingang CampusHangzhou 310058China The State Agriculture Ministry Laboratory of Horticultural Plant Growth Development and Quality ImprovementZhejiang UniversityZijingang CampusHangzhou 310058China New Zealand Institute for Plant&Food Research Limited Private Bag 92169AucklandNew Zealand School of Biological Sciences University of AucklandPrivate Bag 92019AucklandNew Zealand

Phytohormones,epigenetic regulation and environmental factors regulate fruit ripening but their interplay during strawberry fruit ripening remains to be *** this study,bagged strawberry fruit exhibited delayed ripening compared with fruit grown in normal light,correlating with reduced abscisic acid(ABA) *** of the key ABA catabolism gene,ABA 8′-hydroxylase FacYP707A4,was induced in bagged *** light exclusion whole genome Dna methylation levels were up-regulated,corresponding to a delayed ripening process,while Dna methylation levels in the promoter of FacYP707A4 were suppressed,correlating with increases in transcript and decreased ABA *** indicated FacRY1,a blue light receptor repressed in bagged fruit and FaAGO4,a key protein involved in Rna-directed Dna methylation,could bind to the promoter of *** interaction between FacRY1 and FaAGO4,and an increased enrichment of FaAGO4 directed to the FacYP707A4 promoter in fruit grown under light suggests FacRY1 may influence FaAGO4 to modulate the Dna methylation status of the FacYP707A4 ***,transient overexpression of FacRY1,or an increase in FacRY1 transcription by blue light treatment,increases the methylation level of the FacYP707A4 promoter,while transient Rna interference of FacRY1 displayed opposite *** findings reveal a mechanism by which Dna methylation influences ABA catabolism,and participates in light-mediated strawberry ripening.

关键词： ABA catabolism Dna methylation light ripening strawberry

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Mechanical reliable,NIR light-induced rapid self-healing hydrogel electrolyte towards flexible zinc-ion hybrid supercapacitors with low-temperature adaptability and long service life

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Journal of Energy chemistry 2024年第5期92卷 63-73页

作者： Tengjia Gao na Li Yang Yang Jing Li Peng Ji Yunlong Zhou Jianxiong Xu School of Materials and Advanced Manufacturing Hunan Key Laboratory of Electrochemical Green Metallurgy TechnologyHunan University of TechnologyZhuzhou 412007HunanChina School of Life Sciences and chemistry Hunan Key Laboratory of Biomedical Nanomaterials and DevicesHunan University of TechnologyZhuzhou 412007HunanChina

Hydrogel electrolytes hold great potential in flexible zinc ion supercapacitors(ZIcs)due to their high conductivity,good safety,and ***,freezing of electrolytes at low temperature(subzero)leads to drastic reduction in ionic conductivity and mechanical properties that deteriorates the performance of flexible ***,the mechanical fracture during arbitrary deformations significantly prunes out the lifespan of the flexible ***,a Zn^(2+)and Li^(+)co-doped,polypyrrole-dopamine decorated Sb_(2)S_(3)incorporated,and polyvinyl alcohol/poly(N-(2-hydroxyethyl)acrylamide)double-network hydrogel electrolyte is constructed with favorable mechanical reliability,anti-freezing,and self-healing *** addition,it delivers ultra-high ionic conductivity of 8.6 and 3.7 S m^(-1)at 20 and−30°c,respectively,and displays excellent mechanical properties to withstand tensile stress of 1.85 MPa with tensile elongation of 760%,together with fracture energy of 5.14 MJ m^(-3).Notably,the fractured hydrogel electrolyte can recover itself after only 90 s of infrared illumination,while regaining 83%of its tensile strain and almost 100%of its ionic conductivity during−30–60°***,ZIcs coupled with this hydrogel electrolyte not only show a wide voltage window(up to 2 V),but also provide high energy density of 230 Wh kg^(-1)at power density of 500 W kg^(-1)with a capacity retention of 86.7%after 20,000 cycles under 20°***,the ZIcs are able to retain excellent capacity even under various mechanical deformation at−30°*** contribution will open up new insights into design of advanced wearable flexible electronics with environmental adaptability and long-life span.

关键词： Flexible zinc ion supercapacitor Hydrogel electrolyte Self-healing Anti-freezing

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Influences of Earth Incidence Angle on FY-3/MWRI SST Retrieval and Evaluation of Reprocessed SST

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Journal of Tropical Meteorology 2024年第3期30卷 230-240页

作者： ZhaNG Miao cHEN Lin XU na.c.O Guang-zhen Key Laboratory of Radiometric calibration and Validation for Environmental Satellites National Satellite Meteorological CenterChina Meteorological AdministrationBeijing 100081 China Innovation center for FengYun Meteorological Satellite(FYSIc) Beijing 100081 China

Sea surface temperature(SST)is a crucial physical parameter in meteorology and *** study demonstrates that the influence of earth incidence angle(EIA)on the SST retrieved from the microwave radiation imager(MWRI)onboard FengYun-3(FY-3)meteorological satellites should not be *** with algorithms that do not consider the influence of EIA in the regression,those that integrate the EIA into the regression can enhance the accuracy of SST ***,based on the recalibrated Level 1B data from the FY-3/MWRI,a long-term SST dataset was reprocessed by employing the algorithm that integrates the EIA into the *** reprocessed SST data,including FY-3B/MWRI SST during 2010-2019,FY-3c/MWRI SST during 2013-2019,and FY-3D/MWRI SST during 2018-2020,were compared with the in-situ SST and the SST dataset from the Operational Sea Surface Temperature and Ice Analysis(OSTIA).The results show that the FY-3/MWRI SST data were consistent with both the in-situ SST and the OSTIA SST *** with the copernicus climate change Service V2.0 SST,the absolute deviation of the reprocessed SST,with a quality flag of 50,was less than 1.5℃.The root mean square errors of the FY-3/MWRI orbital,daily,and monthly SSTs,with a quality flag of 50,were approximately 0.82℃,0.69℃,and 0.37℃,*** primary discrepancies between the FY-3/MWRI SST and the OSTIA SST were found mainly in the regions of the western boundary current and the Antarctic circumpolar ***,this reprocessed SST product is recommended for El Niño and La Niña events monitoring.

关键词： FengYun-3 satellites sea surface temperature microwave radiation imager earth incidence angle reprocessing

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Magnetic properties of soft magnetic composites prepared by gas-atomized glassy powders from a new Fe-based alloy with high glass-forming ability

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Science china(Physics,Mechanics & Astronomy) 2024年第11期67卷 91-104页

作者： Ranbin Wang Jili Jia You Wu Wenhui Guo na.c.en Yang Shao Kefu Yao School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Wuzhen Laboratory Tongxiang 314500China

With a pressing need for high efficiency, low power consumption, and miniaturization of electronics, soft magnetic composites(SMcs) show great potential, especially for applications in key electronic component. However, core loss is still the focused issue for SMcs that hinders their sustainable development and widespread applications. In the present study, high-performance SMcs were fabricated by novel Fe_(74)B_(7)c_(7)P_(7)Si_(3)Mo_(1)cr_(1) powders with spherical shape and a fully glassy structure, which were successfully prepared by a gas atomization method. The microstructure and high-frequency magnetic properties of these SMcs were studied in detail. To enhance the soft ferromagnetism, the effects of annealing temperature(T_a) and powder size on their performance were clarified. Increasing T_a up to 703 K not only helps to effectively release internal stress in the powders, but also improves the integrity of the insulation layer structure, which is conducive to decreasing the core loss. In addition, reducing the powder size contributes to the overall performance enhancement. Prepared from the powders with the smallest mean particle size and annealed at 703 K, the SMc exhibits optimum property combination of a stable effective permeability of 26.2 up to 1 MHz, a total core loss of 883 kW m^(–3)(100 kHz, 100 mT), and a Dc-Bias performance of 79.3% under 100 Oe field, which is even comparable to those of the most prominent SMcs reported so far. These results are meaningful for potentially stimulating the development and application of new low-loss SMcs.

关键词： metallic glassy powder soft magnetic composite annealing temperature particle size high-frequency property

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Advanced oxidation via the synergy of c-defective/c-O band modified ultrathin porous g-c3N4 and PMS for efficient photothermal degradation of bisphenol pollutants and lignin derivatives

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Green Energy & Environment 2024年第7期9卷 1159-1170页

作者： Liquan Jing Meng Xie Yuanguo Xu chun Tong Xia Du Heng Zhao na Zhong Huaming Li Jinguang Hu School of chemistry and chemical Engineering Jiangsu University Department of chemical and Petroleum Engineering University of Calgary School of Pharmacy Jiangsu University School of Material Science & chemical Engineering Harbin University of Science and Technology Institute for Energy Research Jiangsu University

This work uses thermal polymerization of urea nitrate, oxyacetic acid and urea as the raw material to prepare ultra-thin porous carbon nitride with carbon defects and c-O band（OA-UN-cN）. Density functional theory（DFT） calculations showed OA-UN-cN had narrower band gap,faster electron transport and a new internal construction electric field. Additionally, the prepared OA-UN-cN significantly enhanced photocatalytic activation of peroxymonosulfate（PMS） due to enhanced light absorption performance and faster electron overflow. As the result, the OA-UN-cN/PMS could entirely degrade bisphenol A（BPA） within 30 min, where the photodegradation rate was 81.8 and 7.9 times higher than that of g-c3N4and OA-UN-cN, respectively. Beyond, the OA-UN-cN/PMS could likewise degrade other bisphenol pollutants and sodium lignosulfonate efficiently. We suggested possible photocatalytic degradation pathways accordingly and explored the toxicity of its degradation products. This work provides a new idea on the development of advanced photocatalytic oxidation processes for the treatment of bisphenol pollutants and lignin derivatives, via a metal-free photothermal-catalyst.

关键词： Photothermal-catalytic G-c 3 N 4 Peroxymonosulfate Bisphenol Sodium lignosulfonate

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Dry eye rate and its relationship with disease stage in patients with primary hypertension:a cross-sectional study in Vietnam

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 653-658页

作者： Tran Tat Thang Pham Hong Phuong Nguyen Sa Huynh Nguyen Trung Kien NguyenDuy Toan Nguyen Thi Thu ha Le ha Khoa Nguyen Huu Dung Thai Doan Thang Le Viet Thang Nghe An Eye Hospital Nghe An 43000Vietnam Nghe An Friendship General Hospital Nghe An 43000Vietnam Military Hospital 103 Ha Noi 100000Vietnam Vietnam Military Medical University Ha Noi 100000Vietnam hanoi Medical University Ha Noi 100000Vietnam Bạch Mai Hospital Ha Noi 100000Vietnam TTH Vinh General Hospital Nghe An 100000Vietnam

AIM:To determine the dry eye(DE)rate and its relationship with disease stage in patients with primary ***:A cross-sectional study included 432 patients with primary hypertension(with an equal number of patients in each group:144 in stage Ⅰ,Ⅱ,and Ⅲ hypertension)and 144 healthy subjects as a control *** Ocular Surface Disease Index(OSDI)and Schirmer Ⅰ test without anesthetics were conducted on all 576 *** with OSDI scoreschirmer Ⅰ values equal to or under 10 mm were diagnosed with ***:The ratio of DE in hypertension patients was higher than in the control group(41.7%versus 18.8%;Pcreased gradually according to the hypertension stage:27.1% in stage Ⅰ,40.3% in stage Ⅱ,and 57.6% in stage Ⅲ,Pcreatinine,and high-sensitivity c-reactive protein(cRP-hs)levels in hypertension patients with DE were higher than those without DE,Pcreatinine,and cRP-hs levels were independent factors associated with DE in primary hypertension patients,Pcommon disorder associated with advanced age,a long duration of hypertension,diabetes mellitus,elevated plasma cRP-hs,and creatinine levels in patients with primary hypertension.

关键词： primary hypertension dry eye stage of hypertension plasma creatinine

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Toughened (Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))B_(2)–Sic composites fabricated by one-step reactive sintering with a unique SiB_(6) additive

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Journal of Advanced ceramics 2024年第1期13卷 86-100页

作者： Wei hao Xinzhe Lu Ling Li Tao Wang Guoliang Ren Huangyue cai Xiaofeng Zhao Dongyun Wang na Ni Zhejiang Provincial Key Laboratory of Urban Rail Transit Intelligent Operation and Maintena.c. Technology&Equipment Zhejiang Normal UniversityZhejiang 321004China Key Lab of Education Ministry for Power Machinery and Engineering School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China

High-entropy diboride has been arousing considerable interest in recent ***,the low toughness and damage tolerance limit its applications as ultra-high-temperature structural *** we report that a unique SiB_(6) additive has been first incorporated as boron and silicon sources to fabricate a high-entropy boride(Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))B_(2)–Sic composite though one-step boro/carbothermal reduction reactive sintering.A synergetic effect of high-entropy sluggish diffusion and Sic secondary phase retarded the grain growth of the(Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))B_(2)–51Sic *** small grain size was beneficial to shorten the diffusion path for mass transport,thereby enhancing the relative density to~99.3%.These results in an increase of fracture toughness from~5.2 in HEBS-1900 to~7.7 MPa·m^(1/2) in HEBS-2000,which corresponded to a large improvement of 48%.The improvement was attributed to a mixed mode of intergranular and transgranular cracking for offering effective pinning in crack propagation,resulting from balanced grain boundary strength collectively affected by improved densification,solid solution strengthening,and incorporation of Sic secondary phase.

关键词： high-entropy diboride silicon hexaboride boro/carbothermal reduction reactive sintering fracture toughness

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carbon allocation in Picea jezoensis:Adaptation strategies of a non-treeline species at its upper elevation limit

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Forest Ecosystems 2024年第3期11卷 347-357页

作者： Renkai Dong na Li Mai-He Li Yu cong haibo Du Decai Gao Hong S.He Key Laboratory of Geographical Processes and Ecological Security in changbai Mountains Ministry of EducationSchool of Geographical SciencesNortheast Normal UniversityChangchun130024China School of natural Resources University of MissouriColumbiaMO65211USA Swiss Federal Institute for Forest Snow and Landscape Research WSL8903BirmensdorfSwitzerland Northeast Institute of Geography and Agricultural Ecology Chinese Academy of SciencesChangchun130102China School of Life Science Hebei UniversityBaoding071002China

Understanding the physiological adaptations of non-treeline trees to environmental stress is important to understand future shifts in species composition and distribution of current treeline *** aim of the present study was to elucidate the mechanisms of the formation of the upper elevation limit of non-treeline tree species,Picea jezoensis,and the carbon allocation strategies of the species on changbai *** employed the^(13)c in situ pulse labeling technique to trace the distribution of photosynthetically assimilated carbon in Picea jezoensis at different elevational positions(tree species at its upper elevation limit(TSAUE,1,700 m a.s.l.)under treeline ecotone;tree species at a lower elevation position(TSALE,1,400 m a.s.l.).We analyzed^(13)c and the non-structural carbohydrate(NSc)concentrations in various tissues following *** findings revealed a significant shift in carbon allocation in TSAUE compared to *** was a pronounced increase inδ^(13)c allocation to belowground components(roots,soil,soil respiration)in TSAUE compared to ***,the c flow rate within the plant-soil-atmosphere system was faster,and the c residence time in the plant was shorter in *** trends indicate enhanced c sink activity in belowground tissues in TSAUE,with newly assimilated c being preferentially directed there,suggesting a more conservative c allocation strategy by *** at higher elevations under harsher *** a strategy,prioritizing c storage in roots,likely aids in withstanding winter cold stress at the expense of aboveground growth during the growing season,leading to reduced growth of TSAUE compared to *** results of the present study shed light on the adaptive mechanisms governing the upper elevation limits of non-treeline trees,and enhances our understanding of how non-treeline species might respond to ongoing climate change.

关键词： ^(13)c pulse labeling carbon distribution Non-structural carbohydrates(NSc) Non-treeline species Sink activity Stressful environments Upper elevation limit

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尖晶石LiNi_(0.5)Mn_(1.5)O_(4)材料表面Li_(3)PO_(4)包覆改性与电化学性能

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硅酸盐学报 2024年第6期52卷 2032-2039页

作者：柳娜宁德时代新能源科技股份有限公司福建宁德352106

尖晶石结构LiNi_(0.5)Mn_(1.5)O_(4)(LNMO)材料因具备高工作电压、低成本和环境友好等优点,被认为是最具有发展前景的正极材料之一。然而,LNMO材料在充放电过程中表现出严重的表面失氧和Mn溶出反应,导致其整体电化学性能较差。采用前驱... 详细信息

尖晶石结构LiNi_(0.5)Mn_(1.5)O_(4)(LNMO)材料因具备高工作电压、低成本和环境友好等优点,被认为是最具有发展前景的正极材料之一。然而,LNMO材料在充放电过程中表现出严重的表面失氧和Mn溶出反应,导致其整体电化学性能较差。采用前驱体Li_(3)PO_(4)包覆技术,在LNMO材料颗粒表面构建均匀的纳米包覆层,不仅提高了LNMO的循环稳定性和倍率性能,而且有效抑制了循环过程中阴极材料过渡金属溶出。结合X射线衍射仪、扫描电子显微技术、透射电子显微镜和电化学分析等测试手段,充分对比和分析Li_(3)PO_(4)包覆LNMO材料前后对微观结构和电化学性能的影响。该方法实现了Li_(3)PO_(4)的均匀包覆,并且没有改变LNMO正极材料的晶体结构。前驱体包覆3%Li_(3)PO_(4)的LNMO材料在1 c倍率下循环300圈容量保持率从无包覆的81.82%提升至包覆后的90.47%,2 c高倍率下的放电容量保持率从87.72%提升至92.39%,且EOL电芯阳极极片中过渡金属Mn溶出量明显降低。前驱体Li_(3)PO_(4)包覆策略是一种有效的材料表面改性策略,可以有效提升尖晶石型LNMO正极材料在循环过程中的结构稳定性和电化学性能。

关键词：镍锰酸锂磷酸锂包覆电化学性能

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nanoparticle Exsolution on Perovskite Oxides:Insights into Mechanism,characteristics and Novel Strategies

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nano-Micro Letters 2024年第2期16卷 312-346页

作者： Yo han Kim Hyeongwon Jeong Bo‑Ram Won Hyejin Jeon chan‑ho Park Dayoung Park Yeeun Kim Somi Lee Jae‑ha Myung Department of Materials Science and Engineering Incheon National UniversityIncheon 22012Republic of Korea

Supported nanoparticles have attracted considerable attention as a promising catalyst for achieving unique properties in numerous applications,including fuel cells,chemical conversion,and *** demonstrate high activity by expanding the number of active sites,but they also intensify deactivation issues,such as agglomeration and poisoning,*** for bottomup synthesis of supported nanoparticles has emerged as a breakthrough technique to overcome limitations associated with conventional *** are uniformly exsolved from perovskite oxide supports and socketed into the oxide support by a one-step reduction *** uniformity and stability,resulting from the socketed structure,play a crucial role in the development of novel ***,tremendous research efforts have been dedicated to further controlling exsolution *** effectively address exsolution at a more precise level,understanding the underlying mechanism is *** review presents a comprehensive overview of the exsolution mechanism,with a focus on its driving force,processes,properties,and synergetic strategies,as well as new pathways for optimizing nanocatalysts in diverse applications.

关键词： Supported nanoparticle Exsolution In situ growth Mechanism Perovskite oxide catalyst

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