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Heteromerization of short-chain trans-prenyltransferase controls precursor allocation within a plastidial terpenoid network

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Journal of Integrative Plant Biology 2023年第5期65卷 1170-1182页

作者： yihua ma Qingwen Chen Yaoyao Wang Fengxia Zhang Chengyuan Wang Guodong Wang State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China UniversityofChineseAcademyof Sciences Beijing100039China Center for Microbes Development and HealthInstitut Pasteur of ShanghaiChinese Academy of SciencesShanghai 200031China

Terpenes are the largest and most diverse class of plant specialized ***(C25),which are derived from the plastid methylerythritol phosphate pathway,were recently characterized in *** Arabidopsis thaliana,four genes encoding geranylfarnesyl diphosphate synthase(GFPPS)(AtGFPPS1 to 4)are responsible for the production of GFPP,which is the common precursor for sesterterpene ***,the interplay between sesterterpenes and other known terpenes remain ***,we first provide genetic evidence to demonstrate that GFPPSs are responsible for sesterterpene production in *** of the sesterterpene pathway at the GFPPS step increased the production of geranylgeranyl diphosphate(GGPP)-derived ***,co-expression of sester TPSs in GFPPSOE(overexpression)plants rescued the phenotypic changes of GFPPS-OE plants by restoring the endogenous *** further demonstrated that,in addition to precursor(DmaPP/IPP)competition by GFPPS and GGPP synthase(GGPPS)in plastids,GFPPS directly decreased the activity of GGPPS through protein-protein interaction,ultimately leading to GGPP deficiency in *** study provides a new regulatory mechanism of the plastidial terpenoid network in plant cells.

关键词： Arabidopsis geranylfarnesyl diphosphate synthase geranylgeranyl pyrophosphate synthase plastid sesterterpene terpene network

Occurrence and biosynthesis of plant sesterterpenes (C25), a new addition to terpene diversity

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Plant Communications 2021年第5期2卷 35-44页

作者： Qingwen Chen Jianxu Li yihua ma Weiliang Yuan Peng Zhang Guodong Wang State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijingChina

Terpenes,the largest group of plant-specialized metabolites,have received considerable attention for their highly diverse biological ***(C10),sesquiterpenes(C15),diterpenes(C20),and triterpenes(C30)have been extensively investigated at both the biochemical and molecular levels over the past two ***(C25),an understudied terpenoid group,were recently described by plant scientists at the molecular *** review summarizes the plant species that produce sesterterpenes and describes recent developments in the field of sesterterpene biosynthesis,placing a special focus on the catalytic mechanism and evolution of geranylfarnesyl diphosphate synthase and sesterterpene ***,we propose several questions to be addressed in future studies,which may help to elucidate sesterterpene metabolism in plants.

关键词： terpene geranylfarnesyl diphosphate synthase metabolic gene clusters specialized metabolites sesterterpene(C25)

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DragonBoats

China & The World Cultural Exchange 2002年第3期68卷 44-45页

作者： ma yihua

At the Winter Olympic Games held in CalgaryiR CSR8d8I ChiR6S6 sthl6t6 Li YSR WOR 8 go旧 i6d8Ifor short－t旧oh speed skating、The following day aposter entitled”magic Dragon Soaring1withva旧ntand he巾KU pZcturedon氏 w... 详细信息

关键词： OT IR FS DragonBoats DO

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多站协同感知技术

信息通信技术 2024年第1期18卷 16-24页

作者：王瑜新马一华王钟斌韩志强李松谦白辰夏树强中兴通讯股份有限公司深圳518057 移动网络和移动多媒体技术国家重点实验室深圳518057 华南理工大学广州510641

6G时代,全频谱通信将成为一个特征,雷达频段与通信频段共存共用可能成为现实。通感一体化技术可以复用通信设备的硬件和频谱,对物理世界进行无线感知,已被ITU列为6G的六大场景技术之一。利用现有蜂窝网络中广泛部署基站的数量优势,多站... 详细信息

6G时代,全频谱通信将成为一个特征,雷达频段与通信频段共存共用可能成为现实。通感一体化技术可以复用通信设备的硬件和频谱,对物理世界进行无线感知,已被ITU列为6G的六大场景技术之一。利用现有蜂窝网络中广泛部署基站的数量优势,多站协同感知是6G通感一体化的核心关键,可以为感知性能带来显著增益。针对通信网络的多站协同感知研究仍然处于初步阶段,缺乏协同场景定义和关键技术识别,文章提供多站协同感知的应用场景,并给出实现多站协同感知的关键技术,为多站协同感知的深入研究提供技术参考。

关键词：通感一体化协同感知感知模式数据融合

Truly Grant-Free Technologies and Protocols for 6G

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ZTE Communications 2021年第4期19卷 105-110页

作者： ma yihua YUAN Zhifeng LI Weimin LI Zhigang State Key Laboratory of Mobile Network and Mobile Multimedia Technology Shenzhen 518055China ZTE Corporation Shenzhen 518057China

The further integration of telecommunications and industry has been consider⁃able and is expected to bring significant benefits to society and economics in *** also forms some evolution trends for next-generation communication systems,including further rises in machine-type communications(MTC),uplink-dominated systems,and decentral⁃ized ***,the existing access protocols are not friendly to these *** paper analyzes the problems of existing access protocols and provides novel access technologies to solve *** technologies include contention-based non-orthogonal multiple access(NOma),data features,enhanced pilot design and successive interference cancellation(SIC)of *** these key enablers,truly grant-free access can be re⁃alized,and some potential modifications of protocols are then ***,this paper uses massive and critical scenarios in digital transformations to show the great necessity of introducing novel access technologies into future communication protocols.

关键词： decentralization digital transformations future access protocols MTC uplink

massive Unsourced Random Access Under Carrier Frequency Offset

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中兴通讯技术:英文版 2023年第3期21卷 45-53页

作者： XIE Xinyu WU Yongpeng YUAN Zhifeng ma yihua Shanghai Jiao Tong University Shanghai 200240China ZTE Corporation Shenzhen 518057China State Key Laboratory of Mobile Network and Mobile Multimedia Technology Shenzhen 518055China

Unsourced random access(URA)is a new perspective of massive access which aims at supporting numerous machine-type *** the appearance of carrier frequency offset(CFO),joint activity detection and channel estimation,which is vital for multiple-input and multiple-output URA,is a challenging *** handle the phase corruption of channel measurements under CFO,a novel compressed sensing algorithm is proposed,leveraging the parametric bilinear generalized approximate message passing framework with a markov chain support model that captures the block sparsity structure of the considered angular domain *** uncoupled transmission scheme is proposed to reduce system complexity,where slot-emitted messages are reorganized relying on clustering unique user *** results reveal that the proposed transmission design for URA under CFO outperforms other potential methods.

关键词： activity detection channel estimation frequency offset massive machine-type communication massive MIMO

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Molecular Basis for Sesterterpene Diversity Produced by Plant Terpene Synthases

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Plant Communications 2020年第5期1卷 41-52页

作者： Qingwen Chen Jianxu Li Zhixi Liu Takaaki Mitsuhashi Yuting Zhang Haili Liu yihua ma Juan He Tetsuro Shinada Tsutomu Sato Yong Wang Hongwei Liu Ikuro Abe Peng Zhang Guodong Wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China National Key Laboratory of Plant Molecular Genetics Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China Graduate School of Pharmaceutical Sciences University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-0033Japan State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Key Laboratory of Synthetic Biology Institute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100039China Graduate School of Science Osaka City University3-3-138 SugimotoSumiyoshiOsaka 558-8585Japan Department of Applied Biological Chemistry Faculty of AgricultureGraduate School of Science and TechnologyNiigata University8050 Ikarashi-2Niigata 950-2181Japan

Class I terpene synthase(TPS)generates bioactive terpenoids with diverse *** synthase(sester-TPS,C25),a branch of class I TPSs,was recently identified in ***,the catalytic mechanisms of sester-TPSs are not fully ***,we first identified three nonclustered functional sester-TPSs(AtTPS06,AtTPS22,and AtTPS29)in Arabidopsis ***06 utilizes a type-B cyclization mechanism,whereas most other sester-TPSs produce various sesterterpene backbones via a type-A cyclization *** then determined the crystal structure of the AtTPS18–FSPP complex to explore the cyclization mechanism of plant *** used structural comparisons and site-directed mutagenesis to further elucidate the mechanism:(1)mainly due to the outward shift of helix G,plant sester-TPSs have a larger catalytic pocket than do mono-,sesqui-,and di-TPSs to accommodate GFPP;(2)type-A sester-TPSs have more aromatic residues(five or six)in their catalytic pocket than classic TPSs(two or three),which also determines whether the type-A or type-B cyclization mechanism is active;and(3)the other residues responsible for product fidelity are determined by interconversion of AtTPS18 and its close ***,this study improves our understanding of the catalytic mechanism of plant sester-TPS,which ultimately enables the rational engineering of sesterterpenoids for future applications.

关键词： terpenoid terpene synthase sesterterpene cyclization mechanism crystal structure

Recently duplicated sesterterpene(C25) gene clusters in Arabidopsis thaliana modulate root microbiota

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Science China(Life Sciences) 2019年第7期62卷 947-958页

作者： Qingwen Chen Ting Jiang Yong-Xin Liu Haili Liu Tao Zhao Zhixi Liu Xiangchao Gan Asis Hallab Xuemei Wang Juan He yihua ma Fengxia Zhang Tao Jin M. Eric Schranz Yong Wang Yang Bai Guodong Wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China Key Laboratory of Synthetic Biology Institute of Plant Physiology and EcologyShanghai Institutes far Biological SciencesChinese Academy of SciencesShanghai 200032China Biosystematics Group Wageningen University6708 PB WageningenThe Netherlands CAS-JIC Centre of Excellence for Plant and Microbial Sciences (CEPAMS) Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China max Planck Institute for Plant Breeding Research Carl-von-Linne-Weg 1050829 KolnGermany Forschungszentrum Jiilich Plant Sciences (IBG-2) Wilhelm-Johnen-Straβe52428 JillichGermany China National Genebank-Shenzhen the Beijing Genomics Institute (BGI-Shenzhen)Shenzhen 518083China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing 100039China

Land plants co-speciate with a diversity of continually expanding plant specialized metabolites(PSMs) and root microbial communities(microbiota).Homeostatic interactions between plants and root microbiota are essential for plant survival in natural environments.A growing appreciation of microbiota for plant health is fuelling rapid advances in genetic mechanisms of controlling microbiota by host *** have long been proposed to mediate plant and single microbe ***,the effects of PSMs,especially those evolutionarily new PSMs,on root microbiota at community level remain to be ***,we discovered sesterterpenes in Arabidopsis thaliana,produced by recently duplicated prenyltransferase-terpene synthase(PT-TPS) gene clusters,with neo-functionalization.A single-residue substitution played a critical role in the acquisition of sesterterpene synthase(sesterTPS) activity in Brassicaceae ***,we found that the absence of two root-specific sesterterpenoids,with similar chemical structure,significantly affected root microbiota assembly in similar *** results not only demonstrate the sensitivity of plant microbiota to PSMs but also establish a complete framework of host plants to control root microbiota composition through evolutionarily dynamic PSMs.

关键词： plant specialized metabolites microbiota sesterterpene terpene synthase

Extensive sequence divergence between the reference genomes of Taraxacum kok-saghyz and Taraxacum mongolicum

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Science China(Life Sciences) 2022年第3期65卷 515-528页

作者： Tao Lin Xia Xu Huilong Du Xiuli Fan Qingwen Chen Chunyan Hai Zijian Zhou Xiao Su Liquan Kou Qiang Gao Lingwei Deng Jinsheng Jiang Hanli You yihua ma Zhukuan Cheng Guodong Wang Chengzhi Liang Guomin Zhang Hong Yu Jiayang Li State Key Laboratory of Plant Genomics National Center for Plant Gene ResearchInstitute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China State Key Laboratory of Agrobiotechnology College of HorticultureChina Agricultural UniversityBeijing 100193China University of Chinese Academy of Sciences Beijing 100049China Genomics and Genetic Engineering Laboratory of Ornamental Plants College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Biotechnology Research Institute Heilongjiang Academy of Agricultural SciencesHarbin 150086China Guangdong Laboratory of Lingnan Modern Agriculture Guangzhou 510642China School of Life Sciences Institute of Life Sciences and Green DevelopmentHebei UniversityBaoding 071002China

Plants belonging to the genus Taraxacum are widespread all over the world,which contain rubber-producing and non-rubberproducing ***,the genomic basis underlying natural rubber(NR)biosynthesis still needs more ***,we presented high-quality genome assemblies of rubber-producing ***-saghyz TK1151 and non-rubber-producing *** *** analyses uncovered a large number of genetic variations,including inversions,translocations,presence/absence variations,as well as considerable protein divergences between the two *** gene duplication events were found in these two Taraxacum species,including one common ancestral whole-genome triplication and one subsequent round of gene *** genomes of both TK1151 and TM5,we identified the genes encoding for each step in the NR biosynthesis pathway and found that the SRPP and CPT gene families have experienced a more obvious expansion in TK1151 compared to *** study will have large-ranging implications for the mechanism of NR biosynthesis and genetic improvement of NR-producing crops.

关键词： reference genome Taraxacum kok-saghyz Taraxacum mongolicum comparative genomics natural rubber biosynthesis pathway