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The jasmonate-induced bHLH gene SlJIG functions in terpene biosynthesis and resistance to insects and fungus

Journal of Integrative Plant Biology 2022年第5期64卷 1102-1115页

作者： Yunyun Cao Lun Liu Kangsheng Ma Wenjing Wang Hongmei Lv Ming Gao Xinman Wang Xichun Zhang Shuxin Ren Na Zhang yang-dong guo College of Horticulture China Agricultural UniversityBeijing 100193China College of Horticulture Science and Engineering Shandong Agricultural UniversityTai'an 271018China Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China College of Plant Science and Technology Beijing University of AgricultureBeijing 102206China School of Agriculture Virginia State UniversityPetersburg 23806VAUSA Sanya Institute of China Agricultural University Sanya 572000China

Jasmonic acid(JA)is a key regulator of plant defense *** the transcription factor MYC2,the master regulator of the JA signaling pathway,orchestrates a hierarchical transcriptional cascade that regulates the JA responses,only a few transcriptional regulators involved in this cascade have been ***,we identified the basic helix-loop-helix(bHLH)transcription factor gene in tomato(Solanum lycopersicum),METHYL JASMONATE(MeJA)-INDUCED GENE(SlJIG),the expression of which was strongly induced by MeJA *** and molecular biology experiments revealed that SlJIG is a direct target of *** knockout plants generated by gene editing had lower terpene contents than the wild type from the lower expression of TERPENE SYNTHASE(TPS)genes,rendering them more appealing to cotton bollworm(Helicoverpa armigera).Moreover,SlJIG knockouts exhibited weaker JA-mediated induction of TPSs,suggesting that SlJIG may participate in JA-induced terpene *** out SlJIG also resulted in attenuated expression of JA-responsive defense genes,which may contribute to the observed lower resistance to cotton bollworm and to the fungus Botrytis *** conclude that SlJIG is a direct target of MYC2,forms a MYC2-SlJIG module,and functions in terpene biosynthesis and resistance against cotton bollworm and ***.

关键词： basic helix-loop-helix transcription factor defense response jasmonic acid MYC2 terpene biosynthesis

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Transcriptome profiling and RXR gene family identification reveals the molecular mechanism of rapid aging after spawning of cuttlefish Sepiella japonica

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Journal of Oceanology and Limnology 2024年第3期42卷 865-880页

作者： Zhenyu dong Jiemei ZHAO Feng guo Shuangrui LIN Huai yang Yingying YE Changfei CHI Hongfei LI Baoying guo College of Marine Science and Technology Zhejiang Ocean UniversityZhoushan 316022China National Engineering Research Center for Marine Aquaculture Zhejiang Ocean UniversityZhoushan 316022China donghai Laboratory Zhoushan 316021China

Sepiella japonica is a worldwide marine cuttlefish species of high economic *** routinely modifying behaviors in reproductive life,such as rapid aging until death after spawning,has been recognized in artificial ***,reproductive behavior at the level of genes is rarely reported,thus,the research on the genetic basis of behavior,reproduction,and artificial breeding was *** applied RNA-seq in different stages of reproduction to investigate the reason of rapid aging after spawning,pre-maturity,pre-spawning after maturity,and *** retinoid X receptor(RXR)gene family in *** was identified,and 1343–1452 differentially expressed genes(DEGs)in all 3 stages of reproductive life were identified from pairwise m RNA ***,through the GO term and KEGG analysis,*** could handle neuronal development and network formation before maturity and have a functional degradation of neural communication,signal transduction,vision,and gene expression after *** Sj RXRαs have been identified and they played different roles in growth development or ***,the regulation of several channels and receptors is the intrinsic molecular mechanism of rapid aging after spawning in *** study revealed the survival strategy and provided fundamental data on the level of genes for understanding the reproductive behavior and the reproduction of ***.

关键词： Sepiella japonica RAN-seq retinoid X receptor(RXR)gene family rapid aging intrinsic molecular mechanism

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Recent Advances in Pd-Catalyzed Reactions Involving the “On-Water” Mechanism

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Chinese Journal of Chemistry 2024年第5期42卷 533-542页

作者： dong Wei guo-Qiang Lin State Key Laboratory of Systems Medicine for Cancer Shanghai Cancer InstituteShanghai Key Laboratory of Systems Regulation and Clinical Translation for CancerRen Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200127 China State Key Laboratory of Chemical Biology Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200032 China

As the chemical industry grapples with the need for more eco-friendly practices,the use of water as a reaction medium is gaining attraction in organic *** mini-review delves into Pd-catalyzed reactions that utilize the "on-water" mechanism,spanning from 2019 to late *** reactions are neatly categorized into several types: (A) Catalytic C—H activations,(B) Mizoroki- Heck-type reactions,(C) Suzuki-Miyaura reactions,and (D) Cyclization *** showcasing the potential of water as a sustainable reaction medium for organic transformations,these reactions leave no doubt about the importance of embracing eco-friendly practices in the chemical *** Scientists In 1980,a seminal work by Breslow et *** an acceleration of reaction rate in the Diels-Alder *** and co-workers noted a significant increase in the rate of the [2σ+2σ+2π] cycloaddition of quadricyclane and dimethyl azodicarboxylate (DMAD) when the reaction was conducted in water,as opposed to when it was carried out in organic *** term "on-water" was then coined to describe this *** strategy was further expanded to transition-metal catalyzed transformations by Ackermann in ***,Varma and Leazer disclosed a Pd-catalyzed Mizoroki-Heck type arylation of alkenes with diaryliodonium salts “on-water”.The enantioselective version of "on-water" process was not realized until 2014 by the Zhou *** on,the Schaub group described a Pd-catalyzed Suzuki–Miyaura coupling reaction of electron-poor aryl chlorides with water,using only 50 ppm of catalyst *** recently,Liu and Lin extended the "on-water" strategy to Pd-catalyzed double Mizoroki-Heck *** mini-review has focused on Pd-catalyzed reactions involving the “on-water” mechanism.

关键词： Pd-catalyzed “On-water” Green chemistry Aqueous reactions Mechanism Methodology and reactions Mizoroki-Heck reaction Cross-coupling

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Light People:*** Mazur speaks about ultrafast optics and education

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Light(Science & Applications) 2024年第3期13卷 402-406页

作者： Chenzi guo yang Li Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina State Key Laboratory of Precision Measurement Technology and Instrument Department of Precision InstrumentTsinghua UniversityBeijingChina

*** Mazur is a great influencer over and beyond the optics *** a physicist,he is a pioneer of ultrafast optics and was one of the inventors of colliding-pulse mode-locked *** an educator,he not only gave talks to thousands,but also revolutionized teaching with his globally renowned methodology“Peer Instruction”.As a leader and entrepreneur,he co-founded several companies and was President of Optica(formerly the Optical Society)and currently is the Chair of the Optica ***,Light:Science&Applications talked with *** Mazur about his opinions on research,education and *** full interview video can be found in the Supplementary File.

关键词： optics education companies

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Natural rubber latex as a potential additive for water-based drilling fluids

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Petroleum Science 2024年第4期21卷 2677-2687页

作者： Jun yang Guan-Cheng Jiang Jing-Tian Yi Yin-Bo He Li-Li yang Teng-Fei dong guo-Shuai Wang College of Petroleum Engineering China University of Petroleum (Beijing) National Engineering Research Center of Oil & Gas Drilling and Completion Technology Changqing Drilling General Company CNPC Chuanqing Drilling Engineering Company Limited

The environmental hazards and "carbon footprint" of oil and gas drilling can be significantly reduced by replacing traditional petroleum-based chemical additives with natural materials derived from plants and animals. This paper explored for the first time the interaction mechanism between natural rubber latex(NRL) and bentonite suspensions(BTs) through a series of characterization experiments, as well as the potential applications in water-based drilling fluids(WBDF). The gel viscoelasticity experiments showed that NRL could decrease the consistency coefficient(k) and flow index(n) of BTs, and enhance the shear thinning performance of BTs as pseudo-plastic fluids. In addition, 0.5 w/v% NRL not only increased the critical yield stress and strengthened the structural strength between the bentonite particles, but also facilitated the compatibility of pressure loss and flow efficiency. The evaluation of colloidal stability and WBDF performance indicated that NRL particles could promote the hydration and charge stability on the surface of BTs particles, and optimize the particle size distribution and flow resistance of WBDF under the "intercalation-exfoliation-encapsulation" synergistic interaction. Moreover, NRL can improve the rheological properties of WBDF at high temperatures(<150.C), and form a dense blocking layer by bridging and sealing the pores and cracks of the filter cake, which ultimately reduces the permeability of the cake and the filtration loss of WBDF.

关键词： Natural materials Water-based drilling fluids Natural rubber latex Bentonite suspensions Filtration loss

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Eco-friendly polysaccharide coatings for antifouling and dragreduction and potential application for marine devices

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Friction 2024年第4期12卷 726-744页

作者： Hao yang Liguo QIN Wenhui ZHAO Fagla Jules MAWIGNON Hui guo Yongkang WU Yali ZHANG Guangneng dong Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Institute of Design Science and Basic ComponentsSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Biomedical Information of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Department of Endocrinology First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi’an 710061China

Traditional antifouling agents usually have a certain toxic effect on marine environments and non-target *** this study,Dictyophora indusiata polysaccharide(DIP)was applied as a natural antifouling surface modifier to prepare the surface coating for marine *** DIP coatings were prepared:*** spore polysaccharide(DISP),*** volva polysaccharide(DIVP),and *** embryonic body polysaccharide(DIEP).The antifouling,tribological,and anticorrosion behavior of the coatings were *** revealed that the three kinds of DIP coatings had excellent antifouling properties,which could effectively prevent the adhesion of Chlorella and the attachment of water-based and oily stains on the ***,the coatings showed great mechanical stability and could maintain an extremely low coefficient of friction(COF<0.05)after continuous *** drag reduction rate of the coated surfaces reached 5%,showing a powerful lubrication ***,the DIP coatings presented an outstanding corrosion resistance,where the equivalent circuit impedances were 4-9 orders of magnitude higher than the control *** research showed a promising prospect of surface coating fabrication with DIP for marine devices to achieve the purpose of antifouling and drag reduction.

关键词： Dictyophora indusiata polysaccharide(DIP)coating antifouling anticorrosion lubrication and drag reduction

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Sensitivity impacts owing to the variations in the type of zero-range pairing forces on the fission properties using the density functional theory

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Nuclear Science and Techniques 2024年第3期35卷 198-207页

作者： yang Su Ze-Yu Li Li-Le Liu guo-Xiang dong Xiao-Bao Wang Yong-Jing Chen China Nuclear Data Center China Institute of Atomic EnergyBeijing 102413China School of Science Huzhou UniversityHuzhou 313000China

Using the Skyrme density functional theory,potential energy surfaces of^(240)Pu with constraints on the axial quadrupole and octupole deformations(q_(20)and q_(30))were *** volume-like and surface-like pairing forces,as well as a combination of these two forces,were used for the Hartree–Fock–Bogoliubov *** in the least-energy fission path,fission barrier,pairing energy,total kinetic energy,scission line,and mass distribution of the fission fragments based on the different forms of the pairing forces were analyzed and *** fission dynamics were studied based on the timedependent generator coordinate method plus the Gaussian overlap *** results demonstrated a sensitivity of the mass and charge distributions of the fission fragments on the form of the pairing *** on the investigation of the neutron-induced fission of^(239)Pu,among the volume,mixed,and surface pairing forces,the mixed pairing force presented a good reproduction of the experimental data.

关键词： Nuclear fission Density functional theory Pairing force Potential energy surfaces Fission fragment distribution

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Identification of residues in Lassa virus glycoprotein 1 involved in receptor switch

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Virologica Sinica 2024年第4期39卷 600-608页

作者： Jiao guo Yi Wan yang Liu Xiaoying Jia Siqi dong Gengfu Xiao Wei Wang State Key Laboratory of Virology Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan 430071China University of the Chinese Academy of Sciences Beijing 100049China The Xi'an Key Laboratory of Pathogenic Microorganism and Tumor Immunity School of Basic MedicineXi'an Medical UniversityXi'an 710021China

Lassa virus(LASV)is an enveloped,negative-sense RNA virus that causes Lassa hemorrhagic *** entry of LASV requires the viral glycoprotein 1(GP1)to undergo a receptor switch from its primary receptor alpha-dystroglycan(α-DG)to its endosomal receptor lysosome-associated membrane protein 1(LAMP1).A conserved histidine triad in LASV GP1 has been reported to be responsible for receptor *** test the hypothesis that other non-conserved residues also contribute to receptor switch,we constructed a series of mutant LASV GP1 proteins and tested them for binding to *** residues,L84,K88,L107,and H170,were identified as critical for receptor *** any of the four residues with the corresponding lymphocytic choriomeningitis virus(LCMV)residue(L84 N,K88E,L10F,and H170S)reduced the binding affinity of LASV GP1 for ***,all mutations caused decreases in glycoprotein precursor(GPC)-mediated membrane fusion at both pH 4.5 and *** infectivity of pseudotyped viruses bearing either GPCL84N or GPCK88E decreased sharply in multiple cell types,while L107F and H170S had only mild effects on *** biolayer light interferometry assay,we found that all four mutants had decreased binding affinity to LAMP1,in the order of binding affinity being L84 N>L107F>K88E>*** four amino acid loci identified for the first time in this study have important reference significance for the in-depth investigation of the mechanism of receptor switching and immune escape of LASV occurrence and the development of reserve anti-LASV infection drugs.

关键词： Lassa virus(LASV) Lysosome-associated membrane protein 1 (LAMP1) Glycoprotein Receptor switch Membrane fusion

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Mice with type I interferon signaling deficiency are prone to epilepsy upon HSV-1 infection

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Virologica Sinica 2024年第2期39卷 251-263页

作者： Wei yang Chong-yang Tang dong-Ying Fan Yi-Song Wang Pei-Gang Wang Jing An guo-Ming Luan Beijing Key Laboratory of Epilepsy Sanbo Brain HospitalCapital Medical UniversityBeijing100093China Beijing Institute for Brain Disorders Capital Medical UniversityBeijing100093China Department of Neurosurgery Epilepsy CenterSanbo Brain HospitalCapital Medical UniversityBeijing100093China Department of Microbiology School of Basic Medical SciencesCapital Medical UniversityBeijing100069China Chinese Institute for Brain Research Beijing102206China

Viral encephalitis continues to be a significant public health *** our previous study,we discovered a lower expression of antiviral factors,such as IFN-β,STING and IFI16,in the brain tissues of patients with Rasmussen's encephalitis(RE),a rare chronic neurological disorder often occurred in children,characterized by unihemispheric brain ***,a higher cumulative viral score of human herpes viruses(HHVs)was also found to have a significant positive correlation with the unihemispheric atrophy in *** I IFNs(IFN-I)signaling is essential for innate anti-infection response by binding to IFN-α/βreceptor(IFNAR).In this study,we infected WT mice and IFNAR-deficient A6 mice with herpes simplex virus 1(HSV-1)via periocular injection to investigate the relationship between IFN-I signaling and HHVs-induced brain *** all mice exhibited typical viral encephalitis lesions in their brains,HSV-induced epilepsy was only observed in A6 *** gene expression matrix,functional enrichment analysis and protein-protein interaction network revealed four gene models that were positively related with HSV-induced ***,ten key genes with the highest scores were *** together,these findings indicate that intact IFN-I signaling can effectively limit HHVs induced neural symptoms and brain lesions,thereby confirming the positive correlation between IFN-I signaling repression and brain atrophy in RE and other HHVs encephalitis.

关键词： IFN-I signaling Human herpes viruses(HHVs) Rasmussen's encephalitis(RE)

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Polysaccharides from Chinese herbal medicine:a review on the hepatoprotective and molecular mechanism

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Chinese Journal of Natural Medicines 2024年第1期22卷 4-14页

作者： LI Jifeng guo Haolin dong Ying YUAN Shuo WEI Xiaotong ZHANG Yuxin dong Lu WANG Fei BAI Ting yang Yong Dalian Key Laboratory of Chronic Disease Research Center Dalian UniversityDalian 116622China Key Laboratory of Natural Medicines of the Changbai Mountain Ministry of EducationCollege of PharmacyYanbian UniversityYanji 133002China

Polysaccharides,predominantly extracted from traditional Chinese medicinal herbs such as Lycium barbarum,Angelica sinensis,Astragalus membranaceus,Dendrobium officinale,Ganoderma lucidum,and Poria cocos,represent principal bioactive constituents extensively utilized in Chinese *** compounds have demonstrated significant anti-inflammatory capabilities,especially anti-liver injury activities,while exhibiting minimal adverse *** review summarized recent studies to elucidate the hepatoprotective efficacy and underlying molecular mechanisms of these herbal *** underscored the role of these polysaccharides in regulating hepatic function,enhancing immunological responses,and improving antioxidant capacities,thus contributing to the attenuation of hepatocyte apoptosis and liver *** of molecular pathways in these studies revealed the intricate and indispensable functions of traditional Chinese herbal polysaccharides in liver injury ***,this review provides a thorough examination of the hepatoprotective attributes and molecular mechanisms of these medicinal polysaccharides,thereby offering valuable insights for the advancement of polysaccharide-based therapeutic research and their potential clinical applications in liver disease treatment.

关键词： Polysaccharides Hepatoprotective Chinese herbal medicine Mechanism

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