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VG,encoding a thylakoid formation protein,regulates the formation of variegated leaves in tomato

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Horticultural Plant Journal 2023年第1期9卷 98-108页

作者： Jianwen Song Lijie Guo Lele Shang Wenqian Wang chuying yu Zhibiao Ye Junhong Zhang Key Laboratory of Horticultural Plant Biology(Ministry of Education) Huazhong Agricultural UniversityWuhanHubei 430070China

Leaf-color mutations have been studied extensively in ***,to better understand the complex mechanisms underlying the formation of leaf color,it is essential to continue discover novel genes involved in the process of leaf color *** this study,we identified a variegated-leaf(vg)mutant in tomato that exhibited defective phenotypes in thylakoids and *** clone the vg locus,an F2population was constructed from the cross between the vg mutant(Solanum lycopersicum)and the wild tomato LA1589(***).Using the map-based cloning approach,the vg locus was mapped on chromosome 7 and narrowed down to a 128 kb region that contained 21 open reading frames(ORFs).The expression levels of ORF9,ORF10,and ORF13 were significantly lower in vg than in the wild-type plants,while the ORF11 transcript level was elevated in *** then mutagenized ORF9,ORF10,and ORF13 by the CRISPR/Cas9 system in the wild-type tomato background and found that only the ORF10 mutation reproduced the phenotype of variegated leaves,indicating that ORF10 represents VG and its down-regulated expression was responsible for the variegated leaf ***10 encodes a thylakoid formation protein and its mutant lines showed reduced levels of chlorophyll synthesis and *** together,these results suggest that VG is necessary for chloroplast development,chlorophyll synthesis,and photosynthesis in tomato.

关键词： Chloroplast Genetic mapping Mutation Tomato Variegated leaves

iTRAQ proteomics reveals the regulatory response to Xanthomonas campestris *** in resistant *** pepper genotypes

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Horticultural Plant Journal 2022年第6期8卷 747-756页

作者： Fei Wang Shenghua Gao Juntawong Niran Ning Li Yanxu Yin chuying yu Chunhai Jiao Minghua Yao Hubei Academy of Agricultural Sciences Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic ImprovementCash Crops Research InstituteHubei Academy of Agricultural SciencesWuhanHubei 430070China Kasetsart University Bangkok 10900Thailand

Bacterial spot(BS)is a severe bacterial disease induced by Xanthomonas campestris ***(Xcv),a pathogen that causes serious damage to pepper growth and *** is therefore important to study the mechanisms of pepper resistance to Xcv and to breed and promote Xcvresistant pepper ***,studies of the responses to Xcv infection in peppers at the protein level are ***,we examined Xcv-induced proteomic changes in leaves of the BS susceptible bell pepper ECW and the resistant bell pepper VI037601 using the isobaric tags for relative and absolute quantitation(iTRAQ)-based protein labeling technology.A total of 6,120 distinct proteins were identified,and there were 1,289 significantly differentially accumulated proteins(DAPs)in ECW and VI037601 leaves after Xcv *** these,339(250up-and 89 down-regulated)and 479(300 up-and 179 down-regulated)DAPs were specifically identified in ECW and VI037601,respectively,with 459(364 up-and 95 down-regulated)similarly expressed DAPs being shared by ECW and *** on bioinformatics analysis,many defense-associated proteins were identified as up-regulated in ECW and VI037601,especially the proteins involved in plant-pathogen interaction,phenylpropanoid biosynthesis,protein processing in the endoplasmic reticulum,and MAPK signaling ***,we evaluated transcript levels of six differentially expressed genes from the iTRAQ results by q *** analysis revealed transcriptional changes that were consistent with the changes at the protein *** study will provide a valuable resource for understanding the molecular basis of pepper resistance to Xcv infection and for improving the disease resistance of pepper cultivars.

关键词： Pepper Proteomics analysis Bacterial spot Xanthomonas campestris pv.vesicatoria

Bimetallic-organic coordination polymers to prepare N-doped hierarchical porous carbon for high performance supercapacitors

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Progress in Natural Science:Materials International 2019年第5期29卷 495-503页

作者： Danchen Fu Zeyu Chen chuying yu Xiaolan Song Wenbin Zhong School Minerals Processing and Bioengineering Central South University College of Materials Science and Engineering Hunan University

Single metal-organic coordination polymers have limited functions as precursors for porous carbon electrode *** construction of bimetallic organic coordination polymers can effectively utilize the advantages of each single metal-organic coordination polymer to improve the performance of the derived carbon ***,High performance nitrogen-doped porous carbon(BC;)have been produced by directly carbonizing bimetallic organic coordination polymers formed by 4,4’-bipyridine（BPD）reaction with Fe Cl;and NiCl;.The BC;exhibits high nitrogen content（12.66 at%）,large specific surface area(1049.51 m;g;)and hierarchical porous structure,which contributes to an excellent gravimetric specific gravity of 320.5 Fg;and 108%of specific capacitance retention after 10000 *** BC;assembled symmetrical supercapacitor shows an energy density of 18.3 Wh kg;at a power density of 350 W kg;.It is expected that the as-prepared N-doped porous carbon derived from bimetallic-organic coordination polymer is a promising electrode material for high performance energy storage devices.

关键词： Bimetallic-organic coordination polymers N-doped porous carbon High specific surface area Supercapacitors

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不同砧木嫁接对番茄抗性及果实品质的影响

长江蔬菜 2024年第10期 52-55页

作者：李蝶范宋进何小艳李韦柳蒋雅琴杨其洪余楚英莫永诚易琳珺王益奎李文嘉甘桂云广西壮族自治区农业科学院广西南宁530007 福建省意达科技股份有限公司广西资源县农业科学研究所

为探讨不同砧木嫁接对番茄抗性、产量和品质的影响,将8个不同番茄砧木品种与接穗品种南国红1号进行嫁接,对砧木嫁接成活率、田间抗病性、果实产量及品质进行统计与调查。试验结果表明,砧木勇士6号的综合抗病性最好,对青枯病和枯萎病均... 详细信息

为探讨不同砧木嫁接对番茄抗性、产量和品质的影响,将8个不同番茄砧木品种与接穗品种南国红1号进行嫁接,对砧木嫁接成活率、田间抗病性、果实产量及品质进行统计与调查。试验结果表明,砧木勇士6号的综合抗病性最好,对青枯病和枯萎病均表现为高抗;各砧木的嫁接成活率均高于90%,与南国红1号的亲和性较好;单株产量以勇士6号、T1-134和宝砧5号的较大;不同砧木对果实品质的影响规律不同,其中健壮23号嫁接的番茄果实品质相比其他品种有所提升。综合评价认为,勇士6号可作为南国红1号嫁接砧木在福建地区嫁接番茄生产上应用。

关键词：番茄砧木嫁接品质产量抗病性

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基于CBE的普通物理实验教学改革探索

科教导刊 2022年第35期 113-116页

作者：余楚迎韩山师范学院物理与电子信息工程学院广东潮州521041

文章针对传统物理实验教学存在的问题,基于CBE理论对普通物理实验教学模式的改革进行了探索与实践。首先,依据CBE理念,结合Moodle与线上仿真实验平台构建自主学习系统,从知识、技能和创新等多个维度培养学生的能力;其次,采用综合评价方... 详细信息

文章针对传统物理实验教学存在的问题,基于CBE理论对普通物理实验教学模式的改革进行了探索与实践。首先,依据CBE理念,结合Moodle与线上仿真实验平台构建自主学习系统,从知识、技能和创新等多个维度培养学生的能力;其次,采用综合评价方法完善考核方式,以更客观地评价学生的学习效果。教学实践表明:虚实互补、线上线下结合的实验教学新模式能有效提升学生的自主学习和实践动手能力及创新意识,提高实验教学质量。

关键词：普通物理实验 CBE Moodle平台仿真实验自主学习

基于无人机影像的无瓣海桑单木提取与地上生物量估算

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热带地理 2023年第1期43卷 12-22页

作者：余楚滢龚辉曹晶晶刘燕君刘凯中山大学地理科学与规划学院//广东省公共安全与灾害工程技术研究中心//广东省城市化与地理环境空间模拟重点实验室广州510006 南方海洋科学与工程广东省实验室(珠海) 广东珠海519000 广州市城市规划勘测设计研究院广州510060

无瓣海桑(Sonneratia apetala)是中国红树林恢复种植最早引进的优质红树树种,其生产力在红树林群落中处于较高水平,具有显著的高生物量和能量积累。然而,由于红树林群落冠层密集、结构复杂,精确描绘无瓣海桑的单木树冠存在极大挑战性。... 详细信息

无瓣海桑(Sonneratia apetala)是中国红树林恢复种植最早引进的优质红树树种,其生产力在红树林群落中处于较高水平,具有显著的高生物量和能量积累。然而,由于红树林群落冠层密集、结构复杂,精确描绘无瓣海桑的单木树冠存在极大挑战性。传统的卫星遥感侧重于区域或更大尺度监测需求,而新兴的低空无人机遥感在更精细尺度的红树林生态监测中具有显著优势。以广东省珠海市淇澳岛红树林自然保护区为研究区,利用消费级无人机影像生成的冠层高度模型(Canopy Height Model,CHM)和种子区域生长(Seed Region Growing,SRG)算法进行无瓣海桑单木树冠提取,并建立基于地面调查数据获取的树高和胸径两者之间的回归关系,以优化无瓣海桑地上生物量异速生长方程,进而实现研究区单木尺度的无瓣海桑地上生物量估算。结果表明:基于无人机影像可以有效提取无瓣海桑单木树冠,其提取精度达到67%;验证了树高和胸径之间较高的相关性,提出了基于树高的无瓣海桑地上生物量异速生长方程;研究区无瓣海桑平均地上生物量的范围为2.99~247.24 t/hm2,平均值为92.14 t/hm2,且单木地上质量分布具有空间聚集性。

关键词：红树林遥感地上生物量无人机单木提取无瓣海桑珠海市

Linear-Quadratic Pareto Cooperative Game for Mean-Field Backward Stochastic System

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Journal of Systems Science & Complexity 2024年第3期37卷 947-964页

作者： WANG yu School of Control Science and Engineering Shandong UniversityJinan 250061China

This paper focuses on a Pareto cooperative differential game with a linear mean-field backward stochastic system and a quadratic form cost functional. Based on a weighted sum optimality method, the Pareto game is equivalently converted to an optimal control problem. In the first place,the feedback form of Pareto optimal strategy is derived by virtue of decoupling technology, which is represented by four Riccati equations, a mean-field forward stochastic differential equation(MF-FSDE),and a mean-field backward stochastic differential equation(MF-BSDE). In addition, the corresponding Pareto optimal solution is further obtained. Finally, the author solves a problem in mathematical finance to illustrate the application of the theoretical results.

关键词： Backward stochastic differential equation linear-quadratic control mean-field Pareto optimality

Topological Stability and Entropy for Certain Set-valued Maps

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Acta Mathematica Sinica,English Series 2024年第4期40卷 962-984页

作者： yu ZHANG yu Jun ZHU School of Mathematical Sciences Xiamen UniversityXiamen 361005P.R.China

In this paper,the dynamics(including shadowing property,expansiveness,topological stability and entropy)of several types of upper semi-continuous set-valued maps are mainly considered from differentiable dynamical systems points of *** is shown that(1)if f is a hyperbolic endomorphism then for eachε>0 there exists a C^(1)-neighborhood U of f such that the induced set-valued map F_(f,U)has theε-shadowing property,and moreover,if f is an expanding endomorphism then there exists a C^(1)-neighborhood U of f such that the induced set-valued map F_(f,U)has the Lipschitz shadowing property;(2)when a set-valued map F is generated by finite expanding endomorphisms,it has the shadowing property,and moreover,if the collection of the generators has no coincidence point then F is expansive and hence is topologically stable;(3)if f is an expanding endomorphism then for eachε>0 there exists a C^(1)-neighborhood U of f such that h(F_(f,U,ε))=h(f);(4)when F is generated by finite expanding endomorphisms with no coincidence point,the entropy formula of F is ***,the dynamics of the set-valued maps based on discontinuous maps on the interval are also considered.

关键词： Set-valued map orbit space hyperbolic endomorphism perturbation shadowing expansiveness topological stability entropy

A new liquid membrane diffusion model for characterizing the adsorption kinetics of europium by using a continuous measurement of adsorption platform

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Nuclear Science and Techniques 2024年第1期35卷 59-72页

作者： Hao-Qi yu Tao yu Jian-Hua Ye State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China CGN Cangnan Nuclear Power Co. Ltd.Cangnan 325800China Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang 330013China School of Nuclear Science and Engineering East China University of TechnologyNanchang 330013China

To explore the kinetic adsorption under continuous and nonequilibrium states, an integration of continuous measurement and adsorption platform kinetics method was proposed, which was initially called the ICM-AP kinetics method, and a corresponding kinetic adsorption experimental method was developed. Adsorption experiments of europium(Eu) on Ca-bentonite,Na-bentonite, and the D231 cation exchange resin were performed using the ICM-AP kinetics method and continuous measurements. Because the kinetic experimental results observed in this study were different from those of traditional batch adsorption data, pseudo-first-order or pseudo-second-order kinetic models were unsuitable for fitting the experimental ***, a liquid membrane diffusion(LMD) model was developed based on the assumption of simultaneous adsorption/desorption to discuss the mechanism of kinetic adsorption. The kinetic adsorption mechanism was also studied by using *** results indicated that the proposed adsorption model can fit the experimental data more suitably, and the adsorption/desorption behaviors of Eu on bentonite and the D231 resin were simultaneously observed, suggesting that the adsorption kinetics of Eu(Ⅲ) was mainly dominated by hydrated Eu(Ⅲ) ions on the liquid membrane.

关键词： ICM-AP method LMD model Adsorption mechanism Eu(Ⅲ)