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OsPRMT6a-mediated arginine methylation of OsJAZ1 regulates jasmonate signaling and spikelet development in rice

Molecular Plant 2024年第6期17卷 900-919页

作者： Kun Dong Fuqing Wu Siqi Cheng Shuai Li Feng Zhang Xinxin Xing Xin Jin Sheng Luo Miao Feng Rong Miao Yanqi Chang Shuang Zhang Xiaoman You Peiran Wang Xin Zhang Cailin Lei Yulong Ren Shanshan Zhu Xiuping Guo Chuanyin Wu Dong-Lei Yang Qibing Lin Zhijun Cheng Jianmin Wan State Key Laboratory of crop Gene resources and Breeding National Key Facility for Crop Gene Resources and Genetic ImprovementInstitute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory for crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjing 210095China

Although both protein arginine methylation(PRMT)and jasmonate(JA)signaling are crucial for regulating plant development,the relationship between these processes in the control of spikelet development remains *** this study,we used the CRISPR/Cas9 technology to generate two OsPRMT6a loss-of-function mutants that exhibit various abnormal spikelet ***,we found that OsPRMT6a can methylate arginine residues in JA signal repressors OsJAZ1 and *** showed that arginine methylation of OsJAZ1 enhances the binding affinity of OsJAZ1 with the JA receptors OsCOI1a and OsCOI1b in the presence of JAs,thereby promoting the ubiquitination of OsJAZ1 by the SCF^(OsCOI1a/OsCOI1b) complex and degradation via the 26S *** process ultimately releases OsMYC2,a core transcriptional regulator in the JA signaling pathway,to activate or repress JA-responsive genes,thereby maintaining normal plant(spikelet)***,in the osprmt6a-1 mutant,reduced arginine methylation of OsJAZ1 impaires the interaction between OsJAZ1 and OsCOI1a/OsCOI1b in the presence of *** a result,OsJAZ1 proteins become more stable,repressing JA responses,thus causing the formation of abnormal spikelet ***,we discovered that JA signaling reduces the OsPRMT6a mRNA level in an OsMYC2-dependent manner,thereby establishing a negative feedback loop to balance JA *** further found that OsPRMT6a-mediated arginine methylation of OsJAZ1 likely serves as a switch to tune JA signaling to maintain normal spikelet development under harsh environmental conditions such as high ***,our study establishes a direct molecular link between arginine methylation and JA signaling in rice.

关键词： protein arginine methylation jasmonate signaling negative feedback loop spikelet development adaptation to heat stress rice

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De novo Synthesis of Chiral 3,4-Dihydroquinazolines via One-Pot Enantioselective Ugi-Azide/Cyclization Sequences

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Chinese Journal of Chemistry 2024年第18期42卷 2140-2146页

作者： Zu-Kui Xie Jun-Jun Ding Yi-Ming Ou Jun-Xiu Shi Meng-Lan Shen Chuan-Zhi Yao Hua-Jie Jiang Jie Yu Department of Applied Chemistry Anhui Province Engineering Laboratory for Green Pesticide Development and Applicationand Anhui Province Key Laboratory of Crop Integrated Pest ManagementAnhui Agricultural UniversityHefeiAnhui 230036China

Background and Originality Content,3,4-Dihydroquinazoline frameworks have frequently been encountered in natural products and bioactive *** the past decades,these key structures prompted the development of creative pharmaceuticals owing to their prominent biological properties,including trypanothione reductase(TryR)inhibitor,Hepatitis B virus(HBV)inhibitive activities,anticancer activities,etc.(Scheme 1A).[1]Notably,the chirality of the C4 atom is crucial for drug *** example,the DPC-083 is a potent reverse transcriptase inhibitor for the treatment of HIV infection but the undesired enantiomers exhibit virtually no activity.[ia]Therefore,developing synthetic methods for innovative chiral 4-substituted 3,4-dihydroquinazolines is significant and essential for drug discovery.

关键词： Anionic stereogenic-at-cobalt(ll)complex De novo synthesis post-Ugi transformation One-pot sequence Asymmetric synthesis Multicomponentreactions

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GmSTF accumulation mediated by DELLA protein GmRGAs contributes to coordinating light and gibberellin signaling to reduce plant height in soybean

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The crop Journal 2024年第2期12卷 432-442页

作者： Zhuang Li Qichao Tu Xiangguang Lyu Qican Cheng Ronghuan Ji Chao Qin Jun Liu Bin Liu Hongyu Li Tao Zhao State Key Laboratory of crop Gene resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Plant height influences plant architecture,lodging resistance,and yield *** is modulated by gibberellic acid(GA)metabolism and *** proteins,acting as central repressors of GA signaling,integrate various environmental and hormonal signals to regulate plant growth and development in *** examined the role of two DELLA proteins,GmRGAa and GmRGAb,in soybean plant height *** of these proteins led to longer internodes and increased plant height,primarily by increasing cell *** functioned under different light conditions,including red,blue,and far-red light,to repress plant *** studies revealed that GmRGAs interacted with the blue light receptor *** with this,GmCRY1b partially regulated plant height via ***,DELLA proteins were found to stabilize the protein GmSTF1/2,a key positive regulator of *** stabilization led to increased transcription of GmGA2ox-7b and subsequent reduction in plant *** study enhances our understanding of DELLA-mediated plant height control,offering Gmrgaab mutants for soybean structure and yield optimization.

关键词： DELLA protein GmRGAs GmSTFs Plant height Soybean

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High-quality genomes of Bombax ceiba and Ceiba pentandra provide insights into the evolution of Malvaceae species and differences in their natural fiber development

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Plant Communications 2024年第5期5卷 189-207页

作者： Lei Shao Shangkun Jin Jinwen Chen Guangsui Yang Rui Fan Zhiyuan Zhang Qian Deng Jin Han Xiaowei Ma Zeyu Dong Hejun Lu Wanying Hu Kai Wang Lisong Hu Zhen Shen Surong Huang Ting Zhao Xueying Guan Yan Hu Tianzhen Zhang Lei Fang Zhejiang Provincial Key Laboratory of crop Genetic resources Institute of Crop SciencePlant Precision Breeding AcademyCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Hainan Institute of Zhejiang University Sanya 572025China Tropical crop Germplasm research Institute Chinese Academy of Tropical Agricultural SciencesHaikou 571101China Spices and Beverages research Institute Chinese Academy of Tropical Agricultural SciencesWanning 571533China School of Life Sciences Nantong UniversityNantong 226019China

Members of the Malvaceae family,including Corchorus spp.,Gossypium spp.,Bombax spp.,and Ceiba spp.,are important sources of *** the past decade,the genomes of several Malvaceae species have been assembled;however,the evolutionary history of Malvaceae species and the differences in theirfiber development remain to be ***,we report the genome assembly and annotation of two nat-uralfiber plants from the Malvaceae,Bombax ceiba and Ceiba pentandra,whose assembled genome sizes are 783.56 Mb and 1575.47 Mb,*** analysis revealed that whole-genome duplication and Gypsy long terminal repeat retroelements have been the major causes of differences in chromosome number(2n=14 to 2n=96)and genome size(234 Mb to 2676 Mb)among Malvaceae *** also used comparative genomic analyses to reconstruct the ancestral Malvaceae karyotype with 11 proto-chromo-somes,providing new insights into the evolutionary trajectories of Malvaceae ***-MIXTA-like 3 is relatively conserved among the Malvaceae and functions infiber cell-fate determination in the *** appears to perform this function in any tissue where it is expressed,*** on the endo-carp of *** and in ovulefibers of *** identified a structural variation in a cellulose synthase gene and a higher copy number of cellulose synthase-like genes as possible causes of thefiner,less spinnable,weakerfibers of *** study provides two high-quality genomes of naturalfiber plants and offers insights into the evolution of Malvaceae species and differences in their naturalfiber formation and devel-opment through multi-omics analysis.

关键词： Malvaceae species genome evolution ancestral karyotype fiber differentiation

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Engineering disease-resistant plants with alternative translation efficiency by switching uORF types through CRISPR

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Science China(Life Sciences) 2024年第8期67卷 1715-1726页

作者： Jingjing Tian Zhijuan Tang Ruixia Niu Yulu Zhou Dan Yang Dan Chen Ming Luo Rui Mou Meng Yuan Guoyong Xu National Key Laboratory of crop Genetic Improvement National Centre of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory of Hybrid Rice Institute for Advanced Studies(IAS)Wuhan UniversityWuhan 430072China Hubei Hongshan Laboratory Wuhan 430070China

Engineering disease-resistant plants can be a powerful solution to the issue of food ***,it requires addressing two fundamental questions:what genes to express and how to control their *** find a solution,we screen CRISPR-edited upstream open reading frame(uORF)variants in rice,aiming to optimize translational control of disease-related *** switching uORF types of the 5′-leader from Arabidopsis TBF1,we modulate the ribosome accessibility to the downstream firefly *** assume that by switching uORF types using CRISPR,we could generate uORF variants with alternative translation efficiency(CRISPR-aTrE-uORF).These variants,capable of boosting translation for resistance-associated genes and dampening it for susceptible ones,can help pinpoint previously unidentified genes with optimal expression *** test the assumption,we screened edited uORF variants and found that enhanced translational suppression of the plastic glutamine synthetase 2 can provide broad-spectrum disease resistance in rice with minimal fitness *** strategy,which involves modifying uORFs from none to some,or from some to none or different ones,demonstrates how translational agriculture can speed up the development of disease-resistant *** is vital for tackling the food security challenges we face due to growing populations and changing climates.

关键词： disease-resistant plants broad-spectrum disease resistance uORF uORF types uORF variants CRISPR

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Genome-wide identification and characterization of the PbrATG family in Pyrus bretschneideri and functional analysis of PbrATG1a in response to Botryosphaeria dothidea

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Horticultural Plant Journal 2024年第2期10卷 327-340页

作者： Yun Wang Xun Sun Zhenwu Zhang Zhihua Xie Kaijie Qi Shaoling Zhang Center of Pear Engineering Technology research State Key Laboratory of Crop Genetics and Germplasm EnhancementCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China

The pear is an economic fruit that is widely planted around the world and is loved by people for its rich nutritional value. Autophagy is a self-protection mechanism in eukaryotes, and its occurrence often accompanied by the degradation of damaged substances in cells and the recycling of nutrients. Autophagy is one of the mechanisms through which plants respond to environmental stress and plays an important role in plant development and stress resistance. Functional studies of autophagy-related genes (ATGs) have been performed on a variety of plant species, but little information is available on the ATG family in pear (Pyrus bretschneideri Rehd). Therefore, we analyzed the evolutionary dynamics and performed a genome-wide characterization of the PbrATG gene family. A total of 28 PbrATG members were *** analysis showed that PbrATGs were more closely related to ATGs of European pear and apple. Evolutionary analysis revealed that whole-genome duplication (WGD) and dispersed duplication events were the main driving forces of PbrATG family *** analysis of different pear tissues showed that all the genes were expressed in different pear tissues, and different PbrATGs are expressed at different times and in different locations. Moreover, all PbrATGs also responded to different abiotic stresses, especially salt and drought stress, which elicited the highest expression levels. Pear seedlings were subsequently infected with Botryosphaeria dothidea (***). The results showed that different PbrATGs had different expression patterns at different infection stages. According to the gene expression data, PbrATG1a was selected as a key autophagy gene for further analysis. Silencing of PbrATG1a reduced the resistance of pear to B. dothidea, which resulted in increased lesions, reactive oxygen species (ROS) contents, antioxidant enzyme activity, and gene expression levels in the silenced pear seedlings after B. dothidea inoculation. In this s

关键词： Autophagy Pear PbrATGs Abiotic stress Botryosphaeria dothidea PbrATG1a

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A complete reference genome assembly for foxtail millet and Setaria-db, a comprehensive database for Setaria

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Molecular Plant 2024年第2期17卷 219-222页

作者： Qiang He Chunchao Wang Qiang He Jun Zhang Hongkai Liang Zefu Lui Kun Xie Sha Tang Yuhan Zhou Bin Liu Hui Zhi Guanqing Jia Ganggang Guo Huilong Du Xianmin Diao State Key Laboratory of crop Gene resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China School of Life Sciences Institute of Life Sciences and Green DevelopmentHebei UniversityBaoding 071000China State Key Laboratory of Rice Biology&Breeding Zhejang Provincial Key Laboratory of Crop GermplasmThe Advanced Seed InstituteZhejiang UniversityHangzhouChina

Dear Editor,,Foxtail millet(Setaria italica)and its wild ancestor green foxtail(***),are two C4 genetic model plants known for their desirable traits,such as small size,short life cycle,ease of transformation,and a compact genome size(~420 Mb)(He et al.,2023).Foxtail millet stands out as the only cultivated species within the Setaria *** a foundational crop for ancient east Asian agriculture civilization,it possesses remarkable drought and soil-nutrient deficiency tolerance.

关键词： comprehensive soil cultivated

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Soybean maize strip intercropping:A solution for maintaining food security in China

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Journal of Integrative Agriculture 2024年第7期23卷 2503-2506页

作者： Jiang Liu Wenyu Yang Sichuan Engineering research Center for crop Strip Intercropping System/Key Laboratory of crop Ecophysiology and Farming System in Southwest Ministry of Agriculture and Rural AffairsChengdu 611130China College of Life Science Sichuan Agricultural UniversityYa’an 625014China State Key Laboratory of crop Gene Exploration and Utilization in Southwest China Chengdu 611130China

The practice of intercropping leguminous and gramineous crops is used for promoting sustainable agriculture,optimizing resource utilization,enhancing biodiversity,and reducing reliance on petroleum ***,promoting conventional intercropping strategies in modern agriculture can prove *** innovative technology of soybean maize strip intercropping(SMSI)has been proposed as a *** system has produced remarkable results in improving domestic soybean and maize production for both food security and sustainable *** this article,we provide an overview of SMSI and explain how it differs from traditional *** also discuss the core principles that foster higher yields and the prospects for its future development.

关键词： strip intercropping food security soybean maize spatial arrangement

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OsWRKY65 enhances immunity against fungal and bacterial pathogens in rice

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The crop Journal 2024年第2期12卷 470-481页

作者： Seungmin Son Giha Song Suhyeon Nam Jinjeong Lee Duk-Ju Hwang Eun-Jung Suh Sang Ryeol Park National Institute of Agricultural Sciences Rural Development AdministrationJeonju 54874Republic of Korea Department of Agriculture Forestry and BioresourcesPlant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Department of crop Science and Biotechnology Jeonbuk National UniversityJeonju 54896Republic of Korea

Diverse bacterial and fungal pathogens attack plants,causing biotic stress and severe yield losses *** losses are expected to become more serious as climate change improves conditions for many ***,identifying genes conferring broad-spectrum disease resistance and elucidating their underlying mechanisms provides important resources for plant *** transcription factors affect plant growth and stress ***,the functions of many WRKY proteins remain to be ***,we demonstrated the role of rice(Oryza sativa)WRKY groupⅢtranscription factor OsWRKY65 in ***65 localized to the nucleus and acted as transcriptional *** and molecular functional analyses showed that OsWRKY65 increases resistance to the fungal pathogen Fusarium fujikuroi through downregulation of GA signaling and upregulation of JA ***,OsWRKY65 modulated the expression of the key genes that confer susceptibility or resistance to Xanthomonas oryzae *** to enhance immunity against the *** particular,OsWRKY65directly bound to the promoter region of OsSWEET13 and repressed its *** together,our findings demonstrate that the OsWRKY65 enhances resistance to fungal and bacterial pathogens in rice.

关键词： Bacterial blight Bakanae disease Broad-spectrum disease resistance Oriza sativa OsWRKY65 Rice

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Reply to “Beyond microbial carbon use efficiency”

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National Science Review 2024年第4期11卷 35-37页

作者： Feng Tao Johannes Lehmann Ying-Ping Wang Lifen Jiang Bernhard Ahrens Kostiantyn Viatkin Stefano Manzoni Benjamin Z.Houlton Yuanyuan Huang Xiaomeng Huang Yiqi Luo Department of Ecology and Evolutionary Biology Cornell University Soil and crop Sciences Section School of Integrative Plant ScienceCornell University CSIRO Environment Max Planck Institute for Biogeochemistry Department of Physical Geography and Bolin centre for Climate research Stockholm University Department of Global development Cornell University Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Department of Earth System Science Ministry of Education Key Laboratory for Earth System Modelling Institute for Global Change Studies Tsinghua University

In their commentary, Xiao et al.[1]cautioned that the conclusions on the critical role of microbial carbon use efficiency (CUE) in global soil organic carbon (SOC) storage in the paper by Tao et al.[2] might be too *** claimed that Tao et al.’s study lacked mechanistic consideration of SOC formation and excluded important data *** et al. brought up important points,which can be largely reconciled with our findings by understanding the differences in expressing processes in empirical studies and in models.

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