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Recognition of a salivary effector by the TNL protein RCSP promotes effector-triggered immunity and systemic resistance in Nicotiana benthamiana

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Journal of Integrative plant Biology 2025年第1期67卷 150-168页

作者： Weiwei Rao Tingting Ma Jiayuan Cao Yajun Zhang Sisi Chen Shu Lin Xiaoxiao Liu Guangcun He Li Wan Key Laboratory of plant Design CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China National Key Laboratory of Hybrid Rice College of Life SciencesWuhan UniversityWuhan 430072China University of Chinese Academy of sciences Beijing 100049China

Insects secret chemosensory proteins(CSPs)into plant cells as potential effector proteins during *** molecular mechanisms underlying how CSPs activate plant immunity remain largely *** show that CSPs from six distinct insect orders induce dwarfism when overexpressed in Nicotiana ***-mediated transient expression of Nilaparvata lugens CSP11(NlCSP11)triggered cell death and plant dwarfism,both of which were dependent on ENHANCED DISEASE SUSCEPTIBILITY 1(EDS1),N requirement gene1(NRG1)and SENESCENCE-ASSOCIATED GENE 101(SAG101),indicating the activation of effector-triggered immunity(ETI)in *** of NlCSP11 led to stronger systemic resistance against Pseudomonas syringae DC3000 lacking effector HopQ1-1 and tobacco mosaic virus,and induced higher accumulation of salicylic acid(SA)in uninfiltrated leaves compared to another effector XopQ that is recognized by a Tollinterleukin-1 receptor(TIR)domain nucleotidebinding leucine-rich repeat receptor(TNL)called ROQ1 in ***,NlCSP11-induced dwarfism and systemic resistance,but not cell death,were abolished in *** transgenic line expressing the SA-degrading enzyme Nah *** large-scale virus-induced gene silencing screening,we identified a TNL protein that mediates the recognition of CSPs(RCSP),including aphid effector MP10 that triggers resistance against aphids in ***,bimolecular fluorescence complementation and Alpha Fold2 prediction unveiled an interaction between NlCSP11 and ***,RCSP does not contain the conserved catalytic glutamic acid in the TIR domain,which is required for TNL *** findings point to enhanced ETI and systemic resistance by a TNL protein via hyperactivation of the SA ***,RCSP is the first TNL identified to recognize an insect effector.

关键词： chemosensory protein effector effector-triggered immunity salicylic acid TIR-NBS-LRR

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Unlocking the power of tandem repeat variations to fine-tune rice phenotypes

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Science Bulletin 2025年第3期70卷 297-298页

作者： Kang Chong Key Laboratory of plant molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of sciences Beijing 100049China

The diversity of crop phenotypes is shaped by numerous genomic *** staple cereals like rice,lots of functional variants,including quantitative trait locus(QTLs),have been identified and used to improve various crop traits(yield,quality,architecture,etc.).To breed ideal crop cultivars for agricultural production,we need more and more precise modulation of phenotypes to obtain desirable *** the past decade,genome editing techniques have enabled us to precisely change crop genome sequences,and also functional variants[1],[2],[3].

关键词： cultivar cereal precise

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Characteristics and phytotoxicity of hydrochar-derived dissolved organic matter:Effects of feedstock type and hydrothermal temperature

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Journal of Environmental sciences 2025年第3期149卷 139-148页

作者： Qianqian Lang Xuan Guo Chao Wang Lingyao Li Yufei Li Junxiang Xu Xiang Zhao Jijin Li Bensheng Liu Qinping Sun Guoyuan Zou institute of plant Nutrition and Resources Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China

The dissolved organic matter(DOM)with high mobility and reactivity plays a crucial role in *** this study,the characteristics and phytotoxicity ofDOMreleased fromthe hydrochars prepared from different feedstocks(cowmanure,corn stalk and Myriophyllum aquaticum)under three hydrothermal carbonization(HTC)temperatures(180,200 and 220°C)were *** results showed that the hydrochars had high dissolved organic carbon content(20.15 to 37.65 mg/g)and its content showed a gradual reduction as HTC temperature *** fluorescent components including mixed substance of fulvic acid-like and humic acid-like substances(C1,30.92%-58.32%),UVA humic acid-like substance(C2,25.27%-29.94%)and protein-like substance(C3,11.74%-41.92%)were identified in hydrochar DOM by excitation emission matrix spectra coupled with parallel factor *** HTC temperature increased the relative proportion of aromatic substances(C1+C2)and humification degree of hydrochar DOM from cow manure,while it presented adverse effects on the hydrochar DOM from corn stalk and *** principal component analysis suggested that feedstock type and HTC temperature posed significant effects on the characteristics of hydrochar ***,seed germination test of all hydrochar DOM demonstrated that the root length was reduced by 8.88%-26.43%in contrast with control,and the germination index values were 73.57%-91.12%.These findings provided new insights into the potential environmental effects for hydrochar application in soil.

关键词： Hydrochar Hydrothermal temperature Dissolved organic matter Excitation emission matrix Parallel factor analysis Phytotoxicity

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The CK1-Opaque2 module orchestrates endosperm filling and nutrient storage in maize seeds

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The Crop Journal 2025年第1期13卷 192-203页

作者： Longyu Liao Yunqin Huang Shanshan Wang Haoyu Zhang Jingying Pan Zhenglan Long Yongcai Huang Xiaoling Li Di Chen Tao Yang State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130SichuanChina National Key Laboratory of plant molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China

Phosphorylation is one of the major posttranslational modifications to control plant growth and ***2(O2)represents a central hub for endosperm filling,which largely determines seed yield and nutrient storage in ***,it still remains unclear how O2 phosphorylation orchestrates endosperm filling and nutrient ***,we systematically identified the phosphorylation sites of O2 during endosperm filling.A total of 18 phosphorylation sites were found in O2 and five sites were identified to apparently modulate its subcellular localization and transactivation *** addition,a conserved protein kinase CK1 was confirmed to interact with and phosphorylate O2 at the residue Threonine(T)202 to promote O2-mediated transactivation and protein *** of CK1 resulted in increased kernel size,100-kernel weight and nutrient ***-mimic O2 seeds at T202 exhibited enhanced kernel dimension,test weight,vitreous endosperm area and nutrient accumulation,whereas the phosphorylation-deficient O2 seeds did ***,this study establishes a comprehensive phosphocode atlas of O2 during endosperm filling and highlights the importance of phosphorylation modification in O2 to precisely orchestrate maize yield and nutrient quality.

关键词： Maize Endosperm Phosphorylation Opaque2 CK1

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TavWA1 is critical for wheat growth by modulating cell morphology and arrangement

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Journal of Integrative plant Biology 2025年第1期67卷 71-86页

作者： Guowei Chang Yue Li Lei Peng Chuncai Shen Yipeng Lu Wan Teng Yangyang Liu Yingchun Wang Weiqi Zhu Cuimin Liu Xue He Yiping Tong Xueqiang Zhao Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of sciences Beijing 100049China Key Laboratory of plant molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China State Key Laboratory of molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Zhaoxian Experiment Station Shijiazhuang Academy of Agricultural and Forestry SciencesZhaoxian 515300China

plant growth is determined by the production of cells and initiation of new *** genes that control cell number and cell size is of great significance for understanding plant growth *** this study,we characterized two wheat mutants,ah and dl,with abnormal *** ah mutant is a naturally occurring variant characterized by severe dwarfism,increased tiller number,and reduced grain length,while the dl mutant is derived from an ethyl methane sulfonate(EMS)-mutagenized population and exhibits smaller grain size and slightly reduced plant *** analyses revealed abnormal cell number,cell morphology and arrangement in the stems and leaves of the ah mutant,along with reduced cell length in the grains of the dl ***-based cloning identified that both mutants carry mutations in the same gene TavWA1-7D,which encodes a protein with a von Willebrand factor A(vWA)*** ah mutant harbors a 174-bp insertion in the 1,402-bp coding sequence(CDS)of TavWA1-7D,causing premature termination of protein translation,while the dl mutant contains a Glu420Lys *** the TavWA1-7D ahthrough clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated nuclease 9-mediated genome editing leads to a severe dwarfism *** C-terminus of the protein is crucial for its correct subcellular localization and interaction,supporting its critical role for TavWA1-7D *** analysis showed that the dwarf phenotype of the ah mutant is associated with impaired photosynthesis,ribosome function,and nucleosome ***,TavWA1-7D interacts with an E3 ligase,Ta VIP1-3B,the expression levels of which are elevated in both *** and knockout studies of TaVIP1-3B demonstrated its negative regulatory role in cell length and grain ***,our findings suggest that TavWA1-7D plays a vital role in regulating wheat growth and yield-related traits,with the dl mutant's short grain phen

关键词： grain size severe dwarf TaVIP1 TavWA1 wheat

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molecular and cellular mechanisms of photoperiod-and thermo-sensitive genic male sterility in plants

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molecular plant 2025年第1期18卷 26-41页

作者： Na Wang Xiang Li Jun Zhu Zhong-Nan Yang Shanghai Key Laboratory of plant molecular sciences Shanghai Collaborative Innovation Center of Plant Germplasm Resources DevelopmentCollege of Life SciencesShanghai Normal UniversityShanghai 200234China Shanghai Engineering Research Center of plant Germplasm Resources College of Life SciencesShanghai Normal UniversityShanghai 200234China

Photoperiod-and thermo-sensitive genic male sterile(P/TGMS)lines display male sterility under high-temperature/long-day light conditions and male fertility under low-temperature/short-day light conditions.P/TGMS lines are the fundamental basis for the two-line hybrid breeding,which has notably increased the yield potential and grain quality of rice *** this review,we focus on the research progress on photoperiod-and thermo-sensitive genic male sterility in *** essence of P/TGMS line is their ability to produce viable pollen under varying *** overview the processes involved in anther and pollen development,as well as the molecular,cellular,and genetic mechanisms underlying P/TGMS in Arabidopsis,rice,and other *** development has been identified as a common mechanism of P/TGMS fertility restoration in both Arabidopsis and rice,while reactive oxygen species homeostasis has been implicated in rice P/***,we discuss the prospective applications of P/TGMS and potential solutions to the challenges in this *** review deepens the understanding of the mechanisms underlying P/TGMS and its utilization in two-line hybrid breeding across diverse crops.

关键词： P/TGMS lines pollen cell wall transition slow development ROS homeostasis

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Liquid metal catalyst for ammonia synthesis at low pressure

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Science China Materials 2025年第2期68卷 681-682页

作者： Ziyue Zeng Chenyang Wang Lei Fu College of Chemistry and molecular sciences Wuhan UniversityWuhan 430072China The institute for Advanced Studies Wuhan UniversityWuhan 430072China

Liquid metal(LM)has attracted immense interest as a novel catalyst in the past few years for its distinctive physicochemical properties,encompassing superior electrical and thermal conductivities,as well as exceptional fluidity characteristics at low temperatures[1].In contrast to conventional solid heterogeneous catalysts,the fluidic characteristics of liquid metal catalysts enhance the interaction between catalysts and reactants,boosting mass transfer at the reaction interface.

关键词： catalyst ammonia synthesis

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The miR3367–lncRNA67–GhCYP724B module regulates male sterility by modulating brassinosteroid biosynthesis and interacting with Aorf27 in Gossypium hirsutum

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Journal of Integrative plant Biology 2025年第1期67卷 169-190页

作者： Anhui Guo Hushuai Nie Huijing Li Bin Li Cheng Cheng Kaiyun Jiang Shengwei Zhu Nan Zhao Jinping Hua Laboratory of Cotton Genetics Genomics and Breeding/Joint Laboratory for International Cooperation in Crop Molecular BreedingMinistry of Education/Beijing Key Laboratory of Crop Genetic ImprovementCollege of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100193China Key Laboratory of plant molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China

Cytoplasmic male sterile(CMS)lines play a crucial role in utilization of heterosis in crop ***,the mechanism underlying the manipulation of male sterility in cotton by long non-coding RNA(lncRNA)and brassinosteroids(BRs)remains ***,using an integrative approach combining lncRNA transcriptomic profiles with virus-induced gene silencing experiments,we identify a flower budspecific lncRNA in the maintainer line 2074B,lncRNA67,negatively modulating with male sterility in upland cotton(Gossypium hirsutum).lncRNA67positively regulates cytochrome P274B(GhCYP724B),which acted as an eTM(endogenous target mimic)for *** suppression of GhCYP724B induced symptoms of BR deficiency and male semisterility in upland cotton as well as in tobacco,which resulted from a reduction in the endogenous BR ***724B regulates BRs synthesis by interacting with GhDIM and GhCYP90B,two BRs biosynthesis ***,GhCYP724B suppressed a unique chimeric open reading frame(Aorf27)in 2074A mitochondrial *** expression of Aorf27 in yeast inhibited cellular growth,and over expression of Aorf27 in tobacco showed male ***,the results proved that the miR3367–lncRNA67–GhCYP724B module positively regulates male sterility by modulating BRs *** findings uncovered the function of lncRNA67–GhCYP724B in male sterility,providing a new mechanism for understanding male sterility in upland cotton.

关键词： brassinosteroids GhCYP724B lncRNA67 male sterility mitochondrial Aorf27 upland cotton(G.hirsutum)

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Magnaporthe oryzae infection triggers rice resistance to brown planthopper through the influence of jasmonic acid on the flavonoid biosynthesis pathway

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Insect Science 2025年第1期32卷 243-259页

作者： Su Chen Zhihuan Tao Yanjie Shen Rui Yang Siyuan Yan Zixu Chen Bo Sun Xiaofang Yang Precision Medicine Laboratory for Chronic Non-communicable Diseases of Shandong Province Institute of Precision MedicineJining Medical UniversityJiningShandong ProvinceChina Key Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina College of Medical Engineering&The Key Laboratory for Medical Functional Nanomaterials Jining Medical UniversityJiningShandong ProvinceChina institute of Bioengineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina

In agroecosystems,plants are constantly exposed to attack from diverse herbivorous insects and microbes,and infestation with one species may change the plant defense response to other *** our investigation of the relationships among rice plants,the brown planthopper Nilaparvata lugens(Stål)and the rice blast fungus Magnaporthe oryzae,we observed a significant increase in the resistance of rice treated with rice blast to ***,as evidenced by improved plant survival rates in a small population resistance *** transcriptome data analysis revealed that the rice blast fungus can induce the expression of genes in the jasmonic acid(JA)and flavonoid *** to the flavonoid pathway,the JA pathway also contains 2 types of genes that exhibit similar and opposite trends in response to *** and rice *** these genes,the osjaz1 mutant and the osmyc2 mutant were phenotypically confirmed to positively and negatively regulate rice resistance to *** and rice blast,*** mass spectrometry and quantification experiments showed that the exogenous application of methyl jasmonate(MeJA)can induce the accumulation of eriodictyol,naringenin and quercetin,as well as the expression of OsF3H,Os4CL5 and OsCHI in the flavonoid *** suggests a close connection between the JA pathway and the flavonoid ***,OsF3'H,which negatively regulates rice resistance to *** and rice blast,did not show increased *** and molecular experiments confirmed that OsMYC2 can bind to and inhibit the expression of OsF3'H,thus revealing the mechanism of rice resistance to *** after treatment with rice *** findings will deepen our understanding of the interactions among rice,*** and rice blast.

关键词： flavonoid jasmonic acid Nilaparvata lugens rice rice blast

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Accurate measurements of the bond dissociation energies of^(14)N_(2),^(14N)^(15)N and^(15)N_(2)

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Fundamental Research 2025年第1期5卷 151-157页

作者： Liya Lu Pan Jiang Hong Gao Beijing National Laboratory for molecular sciences(BNLMS) Institute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of sciences Beijing 100049China

Accurate determinations of bond dissociation energies(BDEs)and the corresponding enthalpies of formation derived from them are of fundamental importance,while on the other hand also very challenging in *** this study,we demonstrate a direct experimental scheme for measuring the BDEs of^(14)N_(2),^(14N)^(15)N and^(15)N_(2)to an accuracy of a few *** high-resolution quantum-state-selected velocity-mapped ion images for several rotational levels with accurately known spectroscopic term energies slightly above the dissociation limit N(^(2)D_(5/2,3/2))+N(^(2)D_(5/2,3/2))were obtained for each of the dinitrogen isotopologue molecules.A linear fit between squares of the radii of the quantum-state-selected images and the spectroscopic term energies gives out an accurate measurement of the threshold D0 for dissociating into the channel N(^(2)D_(5/2,3/2))+N(^(2)D_(5/2,3/2)).The BDEs of^(4)N_(2),^(14N)^(15)N and^(15)N_(2)into the lowest channel N(4S)+N(4S)are independently determined to be 78,688±3,78,705±4 and 78,728±4 cm^(−1),*** independently determined BDEs are found to give a consistent value of De after considering the zero-point energies for each of the isotopologues,implying the reliability of the present *** with several previous measurements and theoretical calculations are *** experimental scheme demonstrated in this study should be generally applicable for precisely determining the BDEs of many other diatomic molecules.

关键词： N_(2) Bond dissociation energy Photodissociation Vacuum ultraviolet Velocity-mapped imaging

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