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OTS_1-dependent deSUMOylation increases tolerance to high copper levels in Arabidopsis

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Journal of Integrative Plant Biology 2018年第4期60卷 310-322页

作者： Erbao Zhan huapeng zhou Sha Li Lei Liu Tinghong Tan Honghui Lin Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesSichuan University State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural University

The conjugation of SUMO （small ubiquitin-like modifier） to protein substrates is a reversible process （SUMOylation/deSUMOylation） that regulates plant devel- opment and stress responses. The essential metal copper （Cu） is required for normal plant growth, but excess amounts are toxic. The SUMO E3 ligase, SIZI, and SIZ1- mediated SUMOylation function in plant tolerance to excess Cu. It is unknown whether deSUMOylation also contributes to Cu tolerance in plants. Here, we report that OTSI, a protease that cleaves SUMO from its substrate proteins, participates in Cu tolerance in Arabidopsis thaliana （Arabi- dopsis）. OTS1 loss-of-function mutants （otsl-2 and otsl-3） displayed increased sensitivity to excess Cu. Redox homeostasis and the balance between SUMOylation and deSUMOylation were disrupted in the otsl-3 mutant under excess Cu conditions, The otsl-3 mutant accumulated higher levels of Cu in both shoots and roots compared to wild type. Specific Cu-related metal transporter genes were upregu- lated due to the loss-of-function of OTS% which might explain the high Cu levels in otsl-3. These results suggest that the SUMOylation/deSUMOylation machinery is acti- vated in response to excess Cu, and modulates Cu homeostasis and tolerance by regulating both Cu uptake and detoxification. Together, our findings provide insight into the biological function and regulatory role of SUMOylation/deSUMOylation in plant tolerance to Cu.

关键词： OTS1-dependent deSUMOylation increases tolerance to high copper levels in Arabidopsis Cu Figure

Insights into plant salt stress signaling and tolerance

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Journal of Genetics and Genomics 2024年第1期51卷 16-34页

作者： huapeng zhou Haifan Shi Yongqing Yang Xixian Feng Xi Chen Fei Xiao Honghui Lin Yan Guo Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesSichuan UniversityChengduSichuan 610064China State Key Laboratory of Plant Environmental Resilience China Agricultural UniversityBeijing 100193China College of Grassland Science Nanjing Agricultural UniversityNanjingJiangsu 210095China Xinjiang Key Laboratory of Biological Resources and Genetic Engineering College of Life Science and TechnologyXinjiang UniversityUrumqiXinjiang 830046China

Soil salinization is an essential environmental stressor,threatening agricultural yield and ecological security *** soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth and *** is of great necessity for plants to efficiently deal with the adverse effects caused by salt stress for survival and successful *** determinants of salt tolerance have been identified in plants,and the cellular and physiological mechanisms of plant salt response and adaption have been intensely *** respond to salt stress signals and rapidly initiate signaling pathways to re-establish cellular homeostasis with adjusted growth and cellular *** review summarizes the advances in salt stress perception,signaling,and response in plants.A better under-standing of plant salt resistance will contribute to improving crop performance under saline conditions using multiple engineering *** rhizosphere microbiome-mediated plant salt tolerance as well as chemical priming for enhanced plant salt resistance are also discussed in this review.

关键词： Salt stress Salt perception Salt response and signaling Plant salt tolerance Chemical priming Rhizosphere microbiome

RHA2b-mediated MYB30 degradation facilitates MYB75-regulated,sucrose-induced anthocyanin biosynthesis in Arabidopsis seedlings

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Plant Communications 2024年第3期5卷 62-76页

作者： huapeng zhou Jiaxian He Yiyi Zhang Hongyun Zhao Xia Sun Xi Chen Xinrui Liu Yuan Zheng Honghui Lin Key Laboratory of Bio-resource and Eco-environment of the Ministry of Education College of Life SciencesSichuan UniversityChengdu 610064China Innovative Center of Molecular Genetics and Evolution School of Life SciencesGuangzhou UniversityGuangzhou 510642China State Key Laboratory of Cotton Biology Department of BiologyHenan UniversityKaifeng 475004China

Anthocyanins play diverse roles in plant physiology and stress *** Arabidopsis,the MYB–bHLH–WD40(MBW)complex has a crucial role in the regulation of anthocyanin ***,we report that the R2R3-MYB transcription factor MYB30 and the ubiquitin E3 ligase RHA2b participate in anthocyanin biosynthesis through regulation of the MBW ***30 was found to negatively regulate sucrose-induced anthocyanin biosynthesis in Arabidopsis *** of multiple genes involved inflavo-noid or anthocyanin biosynthesis was affected in the myb30 mutant,and MYB30 directly repressed the expression of MYB75,which encodes a core component of the MBW complex,by binding to its ***,MYB30 physically interacted with MYB75 to inhibit its activity by repressing MBW complex *** addition,sucrose treatment signicantly promoted MYB30 degradation via the action of *** ubiquitination and degradation of MYB30 were signicantly attenuated in the rha2b mutant un-der high-sucrose treatment,and further analysis showed that MYB75 directly promoted RHA2b expression in response to high *** work thus reveals an anthocyanin biosynthetic regulatory module,RHA2b–MYB30,that controls the function of the MBW complex via *** repression of MYB75 by MYB30 is released by MYB75-induced RHA2b expression,thus ensuring the self-activation of MYB75 when anthocy-anin synthesis is needed.

关键词： anthocyanin biosynthesis high sucrose MBW complex MYB30 MYB75 RHA2b

Overexpression of PvWOX3a in switchgrass promotes stem development and increases plant height

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Horticulture Research 2021年第1期8卷 3506-3519页

作者： Ruijuan Yang Zhenying Wu Chen Bai Zhichao Sun Mengqi Wang Yuzhu Huo Hailing Zhang Yamei Wang huapeng zhou Shaojun Dai Wenwen Liu Chunxiang Fu Shandong Provincial Key Laboratory of Energy Genetics and CAS Key Laboratory of Biofuels Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences266101 QingdaoShandongChina University of Chinese Academy of Sciences 100049 BeijingChina Shanghai Normal University 201418 ShanghaiChina Grass and Science Institute of Heilongjiang Academy of Agricultural Sciences HarbinHeilongjiangChina Key Laboratory of Bio-resource and Eco-environment of Ministry of Education College of Life SciencesSichuan University610064 ChengduChina

Switchgrass(Panicum virgatum L.)is an important perennial,noninvasive,tall ornamental grass that adds color and texture to gardens and ***,switchgrass has been considered a forage and bioenergy crop because of its vigorous growth,low-input requirements,and broad ***,we identified PvWOX3a from switchgrass,which encodes a WUSCHEL-related homeobox transcription *** overexpression of PvWOX3a in switchgrass increased stem length,internode diameter,and leaf blade length and width,all of which contributed to a 95%average increase in dry weight biomass compared with control *** one-hybrid and transient dual-luciferase assays showed that PvWOX3a can repress the expression of gibberellin 2-oxidase and cytokinin oxidase/dehydrogenase through apparently direct interaction with their promoter *** results suggested that overexpression of PvWOX3a could increase gibberellin and cytokinin levels in transgenic switchgrass plants,which promotes cell division,elongation,and vascular bundle *** also overexpressed PvWOX3a in a transgenic miR156-overexpressing switchgrass line that characteristically exhibited more tillers,thinner internodes,and narrower leaf *** transgenic switchgrass plants displayed significant increases in internode length and diameter,leaf blade width,and plant height but retained a tiller number comparable to that of plants expressing miR156 ***,the double transgenic switchgrass plants produced 174%more dry-weight biomass and 162%more solubilized sugars on average than control *** findings indicated that PvWOX3a is a viable potential genetic target for engineering improved shoot architecture and biomass yield of horticulture,fodder,and biofuel crops.

关键词： expressing blade landscape

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十世班禅大师的爱国思想及其精神财富

青海师范大学民族师范学院学报 2019年第1期30卷 1-4页

作者：张利涛董华朋 zhou huapeng 青海大学马克思主义学院青海西宁810016 青海省社会科学院政法研究所青海西宁810000 不详

十世班禅大师热爱中国共产党、热爱祖国、热爱自己的民族、热爱自己信仰的宗教,把爱党、爱国、爱民族、爱教完美地统一起来,是班禅大师一生的写照。十世班禅大师的一生,是爱国爱教、团结进步的一生;是精研佛法、深悟教义的一生;是反对... 详细信息

十世班禅大师热爱中国共产党、热爱祖国、热爱自己的民族、热爱自己信仰的宗教,把爱党、爱国、爱民族、爱教完美地统一起来,是班禅大师一生的写照。十世班禅大师的一生,是爱国爱教、团结进步的一生;是精研佛法、深悟教义的一生;是反对分裂、治边稳藏的一生;是立场坚定、服务群众的一生;是不计得失、胸怀坦荡的一生。班禅大师的爱国思想,给宗教界人士、藏传佛教信众和全国各族人民群众留下了宝贵的精神财富。

关键词：十世班禅爱国思想团结进步精神财富

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基于CAN网络的超声波测距模块设计

压电与声光 2010年第5期32卷 874-877页

作者：毛建国李芳培沈峘周华鹏柏方超李忠南京航空航天大学能源与动力学院江苏南京210016

障碍物规避是智能车辆和移动机器人领域的重要研究内容之一。本设计以C8051F040单片机为核心,PCA82C250收发器与超声波传感器阵列相结合,实现基于CAN总线通信的超声波测距系统,并给出了工作原理及软硬件设计方法。此外,用温度补偿模块... 详细信息

障碍物规避是智能车辆和移动机器人领域的重要研究内容之一。本设计以C8051F040单片机为核心,PCA82C250收发器与超声波传感器阵列相结合,实现基于CAN总线通信的超声波测距系统,并给出了工作原理及软硬件设计方法。此外,用温度补偿模块修正超声波传递误差,提高系统测量精度。实验表明,该系统具有测量数据准确,精度高,数据传递效率和利用率高等优点。能有效应用于障碍物测量中。

关键词： CAN总线超声波传感器阵列多目标定位温度补偿 C8051F040

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高精度铂电阻温度测量新方法

压电与声光 2010年第5期32卷 889-893页

作者：沈峘李舜酩周华鹏李芳培柏芳超李忠南京航空航天大学能源与动力学院江苏南京210016

铂电阻是工业测控系统中广泛使用的理想测温元件。常规的温度采集方法是通过测量电阻桥的不平衡电压来实现,其性能依赖于选取的模数转换器精度,高精度测量成本过高。提出一种新的高精度,低成本的铂电阻测温方法。先用RC振荡器将铂电阻... 详细信息

铂电阻是工业测控系统中广泛使用的理想测温元件。常规的温度采集方法是通过测量电阻桥的不平衡电压来实现,其性能依赖于选取的模数转换器精度,高精度测量成本过高。提出一种新的高精度,低成本的铂电阻测温方法。先用RC振荡器将铂电阻变化调制为时变频率信号,再用SSP1492芯片测量该频率变化量,最后送入C8051F021单片机,用高阶多项式完成频率变化到温度变化的解算,实现高精度温度测量。实验结果表明,该方法的测量精度等级高于0.03%(F.S.)。

关键词：传感器信号温度测量仪表铂电阻

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含铝复合推进剂燃烧过程数值模拟

工业加热 2017年第3期46卷 33-36页

作者：吴华鹏李仁府周慧王亮华中科技大学能源与动力工程学院湖北武汉430074 华中科技大学航空航天研究中心湖北武汉430074 华中科技大学中欧清洁与可再生能源学院湖北武汉430074

在固体推进剂AP/HTPB燃烧模型基础上,针对含铝复合推进剂,建立包含金属燃料铝的三明治热流耦合气相稳态燃烧数值模型,研究含铝复合推进剂燃烧火焰结构与燃烧特性。仿真结果表明,含铝复合推进剂燃烧火焰结构基本符合BDP三火焰结构模型,... 详细信息

在固体推进剂AP/HTPB燃烧模型基础上,针对含铝复合推进剂,建立包含金属燃料铝的三明治热流耦合气相稳态燃烧数值模型,研究含铝复合推进剂燃烧火焰结构与燃烧特性。仿真结果表明,含铝复合推进剂燃烧火焰结构基本符合BDP三火焰结构模型,同时随压强升高,沿着AP/HTPB及HTPB/Al物质界面形成高温扩散火焰带,峰前火焰不断靠近燃烧截面。

关键词：含铝复合推进剂热流耦合气相稳态燃烧火焰结构

In situ polymerization of poly(3,4-ethylenedioxythiophene)protective layer towards stable zinc anode

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Nano Research 2025年第1期18卷 382-394页

作者： Debin Luo Peng zhou Xiaowei Lv Panpan Sun Xiaohua Sun Hewei Zhao College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China Hubei Three Gorges Laboratory Yichang 443007China School of Chemistry Beihang UniversityBeijing 100191China

Aqueous zinc-ion devices are considered promising candidates for energy storage due to their high safety,low cost and relatively high energy ***,the dendrite growth,hydrogen evolution reaction(HER)and corrosion of the zinc anode significantly limit the development of Zn-ion ***,an inexpensive poly(3,4-ethylenedioxythiophene)(PEDOT)protective layer was constructed in situ on the Zn surface using electropolymerization to suppress dendrite growth and side reactions,thereby enhancing the reversibility of *** and theoretical calculations revealed that this hydrophilic protective layer promotes the desolvation process of hydrated Zn^(2+)and facilitates the transport of zinc ions,thus improving the thermodynamic and kinetic properties of Zn^(2+)deposition and inhibiting interfacial side ***,the optimized PEDOT@Zn symmetric battery exhibited a cycling stability exceeding 1250 h at 0.5 mA·cm^(-2)and 0.25 mAh·cm^(-2),with a significantly reduced overpotential(from 91.8 to 35 mV).With the assistance of the PEDOT protective layer,the PEDOT@Zn//Cu battery maintained approximately 99.5%Coulombic efficiency after 450 ***-situ scanning electron microscopy(SEM)and in situ optical microscopy characterizations further confirmed that the PEDOT protective layer can effectively suppress the growth of zinc ***,the Zn-ion capacitors assembled by the PEDOT@Zn and activated carbon also demonstrated outstanding cycling stability.

关键词： zinc-ion devices zinc anode poly(3 4-ethylenedioxythiophene)(PEDOT) dendrite desolvation process