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POLLEN STERILITY,a novel suppressor of cell division,is required for timely tapetal programmed cell death in rice

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Science China(Life Sciences) 2022年第6期65卷 1235-1247页

作者： Ronghui Che Bin Hu Wei Wang Yunhua Xiao Dapu Liu wenchao yin Hongning Tong Chengcai Chu State Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biologythe Innovative Academy for Seed DesignChinese Academy of SciencesBeijing 100101China National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China School of Biological and Science Technology University of JinanJinan 250022China College of Agriculture South China Agricultural UniversityGuangzhou510642China

Timely programmed cell death(PCD) of the tapetum supplying nutrients to microspores is a prerequisite for normal pollen *** we identified a unique mutant of rice(Oryza sativa L.),pollen sterility(post),which showed aborted pollens accompanied with extra-large *** to failure of timely PCD of tapetal cells,post exhibited abnormal pollen wall patterning and defective pollen *** map-based cloning,we identified a causal gene,POST,encoding a novel protein which is ubiquitously localized in *** in situ hybridization showed that POST is highly detected in the tapetum and microspores at stages 8 and *** analysis indicated that POST could function as an important regulator of the metabolic process involved in tapetal *** with wild-type rice,post mutant has an increased cell number resulting from elevated expression of cell cycle associated genes in grain *** of POST inhibits grain size in wild type,while appropriate expression of POST in post mutant can recover the seed fertility but has little effect on the large grains,illustrating that fine-tuning of POST expression could be a potential strategy for rice yield *** connection between cell division and cell death conferred by POST provides novel insights into the understanding of the tapetal PCD process.

关键词： programmed cell death tapetum pollen sterility grain size rice

Brassinosteroid-regulated plant growth and development and gene expression in soybean

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The Crop Journal 2019年第3期7卷 411-418页

作者： wenchao yin Nana Dong Mei Niu Xiaoxing Zhang Lulu Li Jun Liu Bin Liu Hongning Tong National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop Sciences Chinese Academy of Agricultural Sciences

Brassinosteroids(BRs) are endogenous phytohormones that play important roles in regulating plant growth and *** this study, we evaluated the effects of brassinolide(BL, one of the active BRs) on soybean and identified roles of the hormone in regulating multiple aspects of plant growth and *** application promoted hypocotyl and epicotyl elongation in the light but blocked epicotyl elongation in the *** levels of castasterone and BL accumulated in light-grown *** disrupted shoot negative gravitropism, whereas gibberellin did *** delayed leaf *** analysis showed that BL induced cell wall-modifying genes and auxin-associated genes but suppressed a class of WRKY genes involved in senescence and stress responses,showing the complex roles of BRs in multiple biological processes.

关键词： Soybean Brassinosteroid Senescence Gravitropism WRKY

A cryptic inhibitor of cytokinin phosphorelay controls rice grain size

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Molecular Plant 2022年第2期15卷 293-307页

作者： Dapu Liu He Zhao Yunhua Xiao Guoxia Zhang Shouyun Cao wenchao yin Yangwen Qian Yanhai yin Jinsong Zhang Shouyi Chen Chengcai Chu Hongning Tong National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biologythe Innovative Academy for Seed DesignChinese Academy of SciencesBeijing 100101China Biogle Genome Editing Center ChangzhouJiangsu Province 213125China Department of Genetics Development and Cell BiologyIowa State UniversityAmesIA 50011USA

Plant hormone cytokinin signals through histidine-aspartic acid(H-D)phosphorelay to regulate plant growth and *** it is well known that the phosphorelay involves histidine kinases,histidine phosphotransfer proteins(HPs),and response regulators(RRs),how this process is regulated by external components remains *** we demonstrate that protein phosphatase with kelch-like domains(PPKL1),known as a signaling component of steroid hormone brassinosteroid,is actually a cryptic inhibitor of cytokinin phosphorelay in rice(Oryza sativa).Mutation at a specific amino acid D364 of PPKL1 activates cytokinin response and thus enlarges grain size in a semi-dominant mutant named *** of PPKL1 containing D364,either with the deletion of the phosphatase domain or not,rescues the s48 mutant ***1 interacts with OsAHP2,one of authentic HPs,and D364 resides in a region resembling the receiver domain of ***,PPKL1 can utilize D364 to suppress OsAHP2-to-RR phosphorelay,whereas mutation of D364 abolishes the *** function of PPKL1 is independent of the phosphatase domain that is required for brassinosteroid ***,editing of the D364-residential region produces a diversity of semi-dominant mutations associated with variously increased grain *** screening of the edited plants enables the identification of two genotypes that confer significantly improved grain ***,our study uncovers a noncanonical cytokinin signaling suppressor and provides a robust tool for seed rational design.

关键词： cytokinin brassinosteroid grain size signaling PPKL1 rice

Vital contribution of brassinosteroids to hypoxia-stimulated coleoptile elongation in submerged rice

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The Crop Journal 2024年第5期12卷 1379-1390页

作者： Binbin Sun Wenjing Meng wenchao yin Mei Niu Dapu Liu Jihong Liu Xiaoxing Zhang Nana Dong Yanzhao Yang Xicheng Li Simeng Geng Haiyan Zhang Hongning Tong College of Agriculture Qingdao Agricultural UniversityQingdao 266109ShandongChina State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

The rapid elongation of rice(Oryza sativa)coleoptile is pivotal for the plant plumule to evade hypoxia stress induced by submergence,a condition often arising from overirrigation,ponding,rainstorms,or *** brassinosteroids(BRs)are recognized for their diverse roles in plant growth and development,their influence on coleoptile elongation under hypoxic conditions remains largely *** this study,we demonstrate the significant requirement of BRs for coleoptile elongation in deep *** coleoptile development,Glycogen Synthase Kinase3-Like Kinase2(GSK2),the central inhibitor of BR signaling in rice,undergoes substantial suppression in deep water but induction in *** contrast,the dephosphorylated form of BRASSINAZOLE RESISTANT1(OsBZR1),representing the active form of the key BR signaling transcription factor,is induced in water but suppressed in ***,the knockout of GSK3-like kinase genes significantly enhances coleoptile elongation in deep water,strongly indicating a vital contribution of BR response to hypoxia-stimulated coleoptile *** analysis uncovers both BR-associated and BR-independent hypoxia responses,implicating substance metabolism,redox reactions,abiotic stress responses,and crosstalk with other hormones in the regulation of BR-induced hypoxia *** summary,our findings suggest that rice plumules rapidly elongate coleoptiles through the activation of BR response in deep water,enabling them to escape from submergence-induced hypoxia stress.

关键词： Brassinosteroid Coleoptile elongation Hypoxia stress Submergence Rice

The U-box ubiquitin ligase TUD1 promotes brassinosteroid-induced GSK2 degradation in rice

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Plant Communications 2023年第2期4卷 107-118页

作者： Dapu Liu Xiaoxing Zhang Qingliang Li Yunhua Xiao Guoxia Zhang wenchao yin Mei Niu Wenjing Meng Nana Dong Jihong Liu Yanzhao Yang Qi Xie Chengcai Chu Hongning Tong National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyThe Innovative Academy for Seed DesignChinese Academy of SciencesBeijing 100101China National Nanfan Research Institute Chinese Academy of Agricultural SciencesSanya 572024China

Brassinosteroids(BRs)are a class of steroid hormones with great potential for use in crop ***-repression is usually one of the key events in hormone ***,how the stability of GSK2,the central negative regulator of BR signaling in rice(Oryza sativa),is regulated by BRs remains ***,we identify the U-box ubiquitin ligase TUD1 as a GSK2-interacting protein by yeast two-hybrid *** show that TUD1 is able to directly interact with GSK2 and ubiquitinate the *** of the tud1 mutant are highly similar to those of plants with constitutively activated *** with this finding,GSK2 protein accumulates in the tud1 mutant compared with the wild *** addition,inhibition of BR synthesis promotes GSK2 accumulation and suppresses TUD1 *** contrast,BRs can induce GSK2 degradation but promote TUD1 ***,the GSK2 degradation process is largely impaired in tud1 in response to *** conclusion,our study demonstrates the role of TUD1 in BR-induced GSK2 degradation,thereby advancing our understanding of a critical step in the BR signaling pathway of rice.

关键词： brassinosteroid TUD1 GSK2 signal transduction ubiquitination

Ecological and Low-carbon Technology in Urban Decentralized Treatment and Reclamation of Wastewater

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Journal of Landscape Research 2018年第3期10卷 76-80,84页

作者： yin wenchao LIU Yongwang YI Wenting LU Xingchao ZHAO Xin ZHAO Li China Architecture Design Group Beijing 100044 China College of Environment and Energy Engineering Beijing University of Technology Beijing 100124 China

China's water shortage situation is *** exploration of non-traditional water resources and relief of contradiction between China's economic development and water resources shortage is the only way to ensure the sustainable development of *** sewage treatment and reclamation is a more stable and widely used method of non-traditional water resources development and ***,urban centralized reclaimed water treatment faces many problems such as high transportation cost and difficulty in laying reusing pipe *** speaking,decentralized reclaimed water treatment technology has obvious advantages and is gradually getting more *** this research,three types of wastewater treatment process featured with urban decentralized low-carbon ecological technology have been mainly *** addition,the operating data of relevant domestic and foreign engineering cases were analyzed from the perspectives of treatment effect,energy consumption level,applicable scale and occupied area,*** study considers that these three new sewage processes based on the principle of ecological engineering have the advantages of compact structure,small footprint,low water consumption,stable effluent quality,beautiful appearance and large applicable scale,and are worthy of researching and importing.

关键词： Decentralized sewage treatment Ecological engineering Low carbon Reclaimed water system for building

The divergence of brassinosteroid sensitivity between rice subspecies involves natural variation conferring altered internal auto-binding of OsBSK2

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Journal of Integrative Plant Biology 2022年第8期64卷 1614-1630页

作者： wenchao yin Lulu Li Zhikun Yu Fan Zhang Dapu Liu Hongkai Wu Mei Niu Wenjing Meng Xiaoxing Zhang Nana Dong Yanzhao Yang Jihong Liu Yongqiang Liu Guoxia Zhang Jianlong Xu Shimei Wang Chengcai Chu Qian Qian Hongning Tong National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Rice Research Institute of Anhui Academy of Agricultural Sciences Hefei 230001China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biologythe Innovative Academy for Seed DesignChinese Academy of SciencesBeijing 100101China

Japonica/geng and indica/xian are two major rice(Oryza sativa)subspecies with multiple divergent traits,but how these traits are related and interact within each subspecies remains ***(BRs)are a class of steroid phytohormones that modulate many important agronomic traits in ***,using different physiological assays,we revealed that japonica rice exhibits an overall lower BR sensitivity than *** screening of BR signaling genes led to the identification of a set of genes distributed throughout the primary BR signaling pathway with divergent *** these,we demonstrate that the C38/T variant in BR Signaling Kinase2(OsBSK2),causing the amino acid change P13L,plays a central role in mediating differential BR signaling in japonica and indica ***2in indica plays a greater role in BR signaling than OsB SK2in japonica by affecting the auto-binding and protein accumulation of ***,we determined that OsBSK2 is involved in a number of divergent traits in japonica relative to indica rice,including grain shape,tiller number,cold adaptation,and nitrogen-use *** study suggests that the natural variation in OsB SK2 plays a key role in the divergence of BR signaling,which underlies multiple divergent traits between japonica and indica.

关键词： brassinosteroid divergence grain shape natural variation rice

Grid-Connected/Islanded Switching Control Strategy for Photovoltaic Storage Hybrid Inverters Based on Modified Chimpanzee Optimization Algorithm

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Energy Engineering 2025年第1期122卷 265-284页

作者： Chao Zhou NarisuWang Fuyin Ni wenchao Zhang School of Electrical and Information Engineering Jiangsu University of TechnologyChangzhou213001China Jiangsu Key Laboratory of Power Transmission&Distribution Equipment Technology Jiangsu University of TechnologyChangzhou213001China

Uneven power distribution,transient voltage,and frequency deviations are observed in the photovoltaic storage hybrid inverter during the switching between grid-connected and island *** response to these issues,this paper proposes a grid-connected/island switching control strategy for photovoltaic storage hybrid inverters based on the modified chimpanzee optimization *** proposed strategy incorporates coupling compensation and power differentiation elements based on the traditional droop ***,it combines the angular frequency and voltage amplitude adjustments provided by the phase-locked loop-free pre-synchronization control *** pre-synchronization is achieved by regulating the virtual current to zero and aligning the photovoltaic storage hybrid inverter with the grid ***,two novel operators,learning and emotional behaviors are introduced to enhance the optimization precision of the chimpanzee *** operators ensure high-precision and high-reliability optimization of the droop control parameters for photovoltaic storage hybrid inverters.A Simulink model was constructed for simulation analysis,which validated the optimized control strategy’s ability to evenly distribute power under load *** strategy effectively mitigated transient voltage and current surges during mode ***,seamless and efficient switching between gridconnected and island modes was achieved for the photovoltaic storage hybrid *** enhanced energy utilization efficiency,in turn,offers robust technical support for grid stability.

关键词： Photovoltaic storage hybrid inverters modified chimpanzee optimization algorithm droop control seamless switching

CO_(2)氧化乙苯脱氢制苯乙烯钒基氧化物催化剂研究进展

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化工进展 2021年第4期40卷 1868-1882页

作者：葛汉青殷文超杨国庆刘昭铁刘忠文陕西省合成气转化重点实验室陕西师范大学化学化工学院陕西西安710119

与现有乙苯直接脱氢工艺技术相比,CO_(2)氧化乙苯脱氢工艺具有缓解直接脱氢热力学平衡限制、苯乙烯选择性高、能耗低和二氧化碳资源化利用等显著优势,有望成为一条从乙苯生产苯乙烯的绿色工艺路线。为此,在总结乙苯直接脱氢反应体系和... 详细信息

与现有乙苯直接脱氢工艺技术相比,CO_(2)氧化乙苯脱氢工艺具有缓解直接脱氢热力学平衡限制、苯乙烯选择性高、能耗低和二氧化碳资源化利用等显著优势,有望成为一条从乙苯生产苯乙烯的绿色工艺路线。为此,在总结乙苯直接脱氢反应体系和现有工业技术特点、面临的问题和发展方向的基础上,本文较为全面地分析了CO_(2)氧化乙苯脱氢的特点和反应机理,探讨了现有催化剂体系普遍快速失活的关键原因,表明高性能催化剂研究依然是推进CO_(2)氧化乙苯脱氢工业化应用的关键。鉴于钒基氧化物催化剂表现出较高的活性,成为近年来CO_(2)氧化乙苯脱氢相关研究关注的重点。为此,从钒物种含量及其聚集态结构、催化剂的氧化还原和酸碱性、催化剂表面积炭及其作用等角度,综合分析了活性中心结构、反应机理等方面的相关研究进展,认为孤立态V^(5+)及其含量可能是决定钒基氧化物催化剂活性的关键,其稳定性主要取决于催化剂的氧化还原特性,而积炭对催化剂活性和稳定性的影响则与其组成和石墨化程度密切相关。基于上述认识,认为强化CO_(2)的高效活化、抑制V^(5+)的深度还原等是今后钒基氧化物催化剂研究的重点发展方向,而利用移动固定床或提升管反应器等进行工艺优化,对推进CO_(2)氧化乙苯脱氢工业化应用具有重要的研究价值。

关键词：催化剂钒氧化物二氧化碳乙苯氧化脱氢