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Crosstalk between RNA m^(6)A modification and epigenetic factors in plant gene regulation

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Plant Communications 2024年第10期5卷 45-58页

作者： jianzhong Hu Tao Xu Hunseung Kang Guangdong Provincial Key Laboratory for Plant Epigenetics Longhua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenGuangdong 518060China Jiangsu Key Laboratory of Genomics School of Life SciencesJiangsu Normal UniversityXuzhouJiangsu Province 221116China Department of Applied Biology College of Agriculture and Life SciencesChonnam National UniversityGwangju 61186Korea

N^(6)-methyladenosine(m^(6)A)is the most abundant modification observed in eukaryotic *** in transcriptome-wide m^(6)A mapping and sequencing technologies have enabled the identification of several conserved motifs in plants,including the RRACH(R=A/G and H=A/C/u)and uGuAW(W=u or A)***,the mechanisms underlying deposition of m^(6)A marks at specific positions in the conserved motifs of individual transcripts remain to be *** from plant and animal studies suggests that m^(6)A writer or eraser components are recruited to specific genomic loci through interactions with particular transcription factors,5-methylcytosine DNA methylation marks,and histone *** addition,recent studies in animal cells have shown that microRNAs play a role in depositing m^(6)A marks at specific sites in transcripts through a base-pairing mechanism.m^(6)A also affects the biogenesis and function of chromatin-associated regulatory RNAs and long noncoding *** we have less of an understanding of the link between m^(6)A modification and epigenetic factors in plants than in animals,recent progress in identifying the proteins that interact with m^(6)A writer or eraser components has provided insights into the crosstalk between m^(6)A modification and epigenetic factors,which plays a crucial role in transcript-specific methylation and regulation of m^(6)A in plants.

关键词： RNA methylation DNA methylation histone modification epigenetics microRNA long noncoding RNA

Solubility of iron(Ⅲ) and nickel(Ⅱ) acetylacetonates in supercritical carbon dioxide

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Chinese Journal of Chemical Engineering 2024年第1期65卷 29-34页

作者： Haixin Sun Jianlei Qi Jianfei Sun Lin Li Kunpeng Yu Jintao Wu jianzhong Yin State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024China College of Chemical Engineering Inner Mongolia University of TechnologyHohhot 010051China

As a common precursor for supercritical CO_(2)(scCO_(2))deposition techniques,solubility data of organometallic complexes in scCO_(2)is crucial for the preparation of ***,metal acetylacetonates have shown great potential for the preparation of single-atom catalytic *** this study,the solubilities of iron(Ⅲ)acetylacetonate(Fe(acac)3)and nickel(Ⅱ)acetylacetonate(Ni(acac)2)were measured at the temperature from 313.15 to 333.15 K and in the pressure range of 9.5–25.2 MPa to accumulate new solubility *** was measured using a static weight loss *** semi-empirical models proposed by Chrastil and Sung et *** used to correlate the solubility data of Fe(acac)3 and Ni(acac)*** equations obtained can be used to predict the solubility of the same system in the experimental range.

关键词： Iron(III)acetylacetonate Nickel(II)acetylacetonate Supercritical carbon dioxide Solubility measurement Correlation model Phase equilibrium

Benefit of aerosol reduction to winter wheat during China's clean air action:A case study of Henan Province

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Journal of Environmental Sciences 2024年第7期141卷 90-101页

作者： Yang Bai Pengfei Zhao Xueyang Chen Lijun Wang Wenjuan Chang jianzhong Guo Jiayao Wang College of Geography and Environmental Science Henan UniversityKaifeng 475004China Henan Industrial Technology Academy of Spatio-Temporal Big Data Henan UniversityZhengzhou 475000China Henan Technology Innovation Center of Spatio-Temporal Big Data Henan UniversityZhengzhou 450046China Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions(Henan university) Ministry of EducationKaifeng 475000China

A strongly declining aerosol radiative effect has been observed in China since 2013 after implementing the clean air action,yet its impact on wheat(Triticum aestivum L.)production remains *** use satellite measures and a biophysical crop model to assess the impact of aerosol-induced radiative perturbations on winter wheat production in the agricultural belt of Henan province from 2013 to *** calibrating parameters with the extended Fourier Amplitude Sensitivity Test(EFAST)and the generalized likelihood uncertainty estimation(GLuE)method,the DSSAT CERES-Wheat model was able to simulate crop biomass and yield more *** found that the aerosol negatively impacted wheat biomass by 21.87%and yield by 22.48%from 2006 to 2018,and the biomass effects from planting to anthesis were more significant compared to anthesis to *** to the strict clean air action,under all-sky conditions,the surface solar shortwave radiation(SSR)in 2018 increased by about 7.08%over 2006-2013 during the wheat growing *** a result of the improvement of crop photosynthesis,winter wheat biomass and yield increased by an average of 5.46%and 2.9%,*** findings show that crop carbon uptake and yield will benefit from the clean air action in China,helping to ensure national food and health security.

关键词： Haze pollution Clean air action Aerosol-induced radiative perturbation Wheat production DSSAT model

Data-driven Predictive Voltage Control for Distributed Energy Storage in Active Distribution Networks

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CSEE Journal of Power and Energy Systems 2024年第5期10卷 1876-1886页

作者： Yanda Huo Peng Li Haoran Ji Hao Yu Jinli Zhao Wei Xi jianzhong Wu Chengshan Wang School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Digital Power Grid Research Institute China Southern Power GridGuangzhou 510630China School of Engineering Cardiff UniversityCardiff CF243AAU.K.

Integration of distributed energy storage(DES)is beneficial for mitigating voltage fluctuations in highly distributed generator(DG)-penetrated active distribution networks(ADNs).Based on an accurate physical model of ADN,conventional model-based methods can realize optimal control of ***,absence of network parameters and complex operational states of ADN poses challenges to model-based *** paper proposes a data-driven predictive voltage control method for ***,considering time-series constraints,a data-driven predictive control model is formulated for DES by using measurement ***,a data-driven coordination method is proposed for DES and DGs in each *** boundary information interaction,voltage mitigation effects can be improved by interarea coordination ***,control performance is tested on a modified IEEE 33-node test *** studies demonstrate that by fully utilizing multi-source data,the proposed predictive control method can effectively regulate DES and DGs to mitigate voltage violations.

关键词： Distribution network distributed energy storage(DES) distributed generators(DGs) data-driven predictive voltage control

1例放射治疗后大网膜原发血管肉瘤^(18)F-FDG PET/CT表现

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中国医学影像技术 2024年第6期40卷 947-948页

作者：陈涛樊建中湖北文理学院附属医院襄阳市中心医院核医学科湖北襄阳441000

患者女,55岁,腹胀、食欲减退半年、加重20天;宫颈癌史6年,曾接受6个疗程规律化学治疗(简称化疗)及25次腹盆腔放射治疗(简称放疗)。查体:腹部膨隆,无压痛及反跳痛,移动性浊音阳性。实验室检查:红细胞计数2.52×10^(12)/L,血红蛋白78.00g... 详细信息

患者女,55岁,腹胀、食欲减退半年、加重20天;宫颈癌史6年,曾接受6个疗程规律化学治疗(简称化疗)及25次腹盆腔放射治疗(简称放疗)。查体:腹部膨隆,无压痛及反跳痛,移动性浊音阳性。实验室检查:红细胞计数2.52×10^(12)/L,血红蛋白78.00g/L,血清糖类抗原CA125203.50u/ml。腹盆腔CT及MRI:大网膜广泛不规则增厚,部分呈结节状,增强后明显不匀均强化(图1A~1D);腹盆腔大量积液。全身^(18)F-FDG PET/CT:大网膜多发结节状不规则增厚伴糖代谢异常增高,最大标准摄取值11.20(图1E~1G);腹盆腔大量血性积液。

关键词：血管肉瘤网膜正电子发射断层显像

Screening and Identifying of Interaction Protein AtL5 in Arabidopsis thaliana

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Journal of Biosciences and Medicines 2024年第7期12卷 184-193页

作者： jianzhong Huang Xiaoju Zhong Xiuying Guan Peng Jia Hongbin Zhang Kai Chen Zhuojun Li Guangyu Chen Chuitang Zeng Key Laboratory of Chronic Diseases Fuzhou Medical University Fuzhou China

Research background: The Arabidopsis-resistance protein L5 (AT1G12290) can trigger cell death in Nicotiana benthamiana, which is a characteristic function of an NBS-LRR (Nucleotide-Binding Sites and Leucine-Rich Repeat) protein activation. Purpose: To explore the function and molecular regulatory network of L5. Method: We employed yeast two-hybrid technology to search for interacting proteins of L5, combined with laser confocal microscopy to observe the subcellular localization of these candidate proteins, and analyzed the impact of these proteins on L5 function using an Agrobacterium mediated transient expression system. Results: Seven candidate interacting proteins were identified from the Arabidopsis cDNA library, including PPA1 (AT1G01050), RIN4 (AT3G25070), LSu1 (AT3G49580), BZIP24 (AT3G51960), BOI (AT4G19700), RING/u (AT4G22250) and PPA3 (AT2G46860). Functional analysis of these candidate interacting proteins showed that they participated in multiple pathways, including biological and abiotic stress, programmed cell death, protein degradation, material metabolism and transcriptional regulation. The results of laser confocal microscopy manifested that RIN4 was only localized on the plasma membrane (PM), and RING/u was mainly associated with the PM. PPA1, PPA3, LSu1, BZIP24, and BOI all emerged nuclear and cytoplasmic localization. The results of the transient assay proclaimed that both BOI and RING/u can inhibit cell death caused by L5. Conclusions: These results indicate that L5 immune receptors may participate in various pathways, and their protein levels and activities are strictly regulated at multiple levels, providing a basis for elucidating the mechanism of L5 immune receptors in Arabidopsis resistance.

关键词： Cell Death NBS-LRR Nicotiana benthamiana Yeast Two-Hybrid

An improved effective liquid drop model for cluster radioactivity

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Communications in Theoretical Physics 2024年第3期76卷 127-137页

作者：崔建坡邢凤竹高永浩齐立倩王艳召顾建中 Department of Mathematics and Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Institute of Applied Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hebei Research Center of the Basic Discipline Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China

The effective liquid drop model(ELDM)is improved by introducing an accurate nuclear charge radius formula and an analytic expression for assaulting *** the improved effective liquid drop model(IMELDM),the experimental cluster radioactivity half-lives of the trans-lead region are *** is shown that the accuracy of the IMELDM is improved compared with that of the *** last,the cluster radioactivity half-lives that are experimentally unavailable for the trans-lead nuclei are predicted by the *** predictions may be useful for searching for new candidates for cluster radioactivity in future experiments.

关键词： cluster radioactivity nuclear charge radius assaulting frequency effective liquid drop model

On the origin and regulation of ultrasound responsiveness of block copolymer nanoparticles

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Science China Chemistry 2020年第2期63卷 272-281页

作者： Bo Yang jianzhong Du Department of Orthopedics Shanghai Tenth People's HospitalTongji University School of MedicineShanghai 200072China Department of Polymeric Materials School of Materials Science and EngineeringTongji UniversityShanghai 201804China

Noninvasive ultrasound is more convenient and easily accessible for controlled drug delivery of polymeric nanoparticles than many other ***,controlled ultrasound responsiveness is rather challenging as the mechanism is still *** this article,we disclose the origin and the key regulating factors of ultrasound responsiveness of block copolymer nanoparticles such as simple vesicles,framboidal vesicles,lamellae,beads-like micelles and complex micelles that are self-assembled from a range of poly(ethylene oxide)-b-polymethacrylates based model *** discover that the intrinsic ultrasound responsiveness of block copolymer nanoparticles thermodynamically originates from their metastable states,and its expression kinetically relates to the mobility of the hydrophobic segments of block ***,the self-assembly temperature(Ts) that has been usually considered as a less important factor in most of macromolecular self-assembly systems,and the solvents for the selfassembly are two dominant regulating factors of the ultrasound responsiveness because they determine the thermodynamic state(metastable or stable) of *** example,simple vesicles with good or excellent ultrasound responsiveness can be prepared in THF/water when the Tsis around or slightly below the glass transition temperature(Tg) of the hydrophobic segment of the block copolymer because the combination of this solvent with this Tsfacilitates the formation of metastable *** contrast,thermodynamically stable solid nanoparticles such as spherical micelles and lamellae(mainly formed in DMF/water)are not sensitive to ultrasound at all,neither are the vesicles in THF/water at stable states when the Tsis highly above *** addition,we unravel that the responsive rate is highly dependent on the sonication temperature(Tu),i.e.,the higher the Tu,the faster the ***,the above important findings provide us with a fresh insight into how to design ultrasound-r

关键词： ultrasound responsiveness polymeric nanoparticles polymer vesicles self-assembly metastable states

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右江盆地卡林型金矿成矿年代学研究进展

地学前缘 2024年第1期31卷 267-283页

作者：高伟胡瑞忠李秋立刘建中李献华中国科学院地球化学研究所矿床地球化学国家重点实验室贵州贵阳550081 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 贵州省地质矿产开发局贵州贵阳550081 中国科学院大学地球与行星科学学院北京100049

右江盆地是全球仅次于美国内华达地区的第二大卡林型金矿床集中分布区。由于成矿时代的不确定性,盆地内卡林型金矿床的成矿动力学背景一直不清。为准确确定这些金矿床的成矿时代,近四十年来国内外矿床学家进行了孜孜不倦的探索,从早期... 详细信息

右江盆地是全球仅次于美国内华达地区的第二大卡林型金矿床集中分布区。由于成矿时代的不确定性,盆地内卡林型金矿床的成矿动力学背景一直不清。为准确确定这些金矿床的成矿时代,近四十年来国内外矿床学家进行了孜孜不倦的探索,从早期以石英裂变径迹和流体包裹体Rb-Sr等时线法为代表的定年,到中期以硫化物Re-Os等时线法为代表的单矿物溶样法定年,再到最新以热液金红石、独居石和磷灰石u-Th-Pb法为代表的微区原位定年,其定年对象和方法见证了同位素地质年代学的发展历程。现已基本明确,右江盆地主要发育两期卡林型金矿成矿作用,分别为215~200 Ma和155~140 Ma,相当于印支期和燕山期,其动力学背景分别对应于印支-华南-华北地块碰撞后的印支期陆内造山过程以及燕山期软流圈上涌诱发的岩石圈伸展作用。

关键词：右江盆地卡林型金矿成矿时代印支期和燕山期成矿