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Acetyl coenzyme A carboxylase modulates lipogenesis and sugar homeostasis in Blattella germanica

Insect Science 2024年第2期31卷 387-404页

作者： Xiaojin Pei Tiantian Bai Yuan Luo Zhanfeng Zhang Sheng Li Yongliang Fan Tong-Xian Liu Guangdong Provincial key laboratory of Insect Developmental biology and Applied Technology and Institute of Insect Science and Technology School of Life SciencesSouth China Normal UniversityGuangzhouChina State key laboratory of Crop stress biology for Arid Areas and key laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau Ministry of AgricultureNorthwest A&F UniversityYanglingShaanxiChina Guangmeiyuan R&D Center Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied TechnologySouth China Normal UniversityMeizhouGuangdong ProvinceChina Institute of Entomology Guizhou UniversityGuiyangChina

Lipid and sugar homeostasis is critical for insect development and *** this study,we characterized an acetyl coenzyme A carboxylase gene in Blattella germanica(BgACC)that is involved in both lipogenesis and sugar *** found that BgACC was dominantly expressed in the fat body and integument,and was significantly upregulated after *** of BgACC in 5th-instar nymphs did not affect their normal molting to the next nymphal stage,but it caused a lethal phenotype during adult ***-RNA interference(RNAi)significantly downregulated total free fatty acid(FFA)and triacylglycerol(TAG)levels,and also caused a significant decrease of cuticular hydrocarbons(CHCs).Repression of BgACC in adult females affected the development of oocytes and resulted in sterile females,but BgACC-RNAi did not affect the reproductive ability of ***,knockdown of BgACC also changed the expression of insulin-like peptide genes(BglLPs),which mimicked a physiological state of high sugar *** addition,BgACC was upregulated when *** were fed on a high sucrose diet,and repression of BgACC upregulated the expression of the glycogen synthase gene(BgGlyS).Moreover,BgACC-RNAi increased the circulating sugar levels and glycogen storage,and a longevity assay suggested that BgACC was important for the survival of *** under conditions of high sucrose *** results confirm that BgACC is involved in multiple lipid biogenesis and sugar homeostasis processes,which further modulates insect reproduction and sugar *** study benefits our understanding of the crosstalk between lipid and sugar metabolism.

关键词： acetyl-CoA carboxylase German cockroach lipid biosynthesis sugar tolerance

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Invasion of fall armyworm led to the succession of maize pests in Southwest China

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Journal of Integrative Agriculture 2024年第4期23卷 1300-1314页

作者： Zezheng Fan Yifei Song Shengyuan Zhao Kongming Wu Agricultural Information Institute Chinese Academy of Agricultural SciencesBeijing 100081China Guangdong laboratory for Lingnan Modern Agriculture Guangzhou 510642China State key laboratory for biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China

The invasive fall armyworm Spodoptera frugiperda(***)invaded Asia in 2018,colonizing the tropical and southern subtropical regions as well as migrating with the monsoons into Northeast Asia during spring and *** has resulted in widespread infestations,with significant impacts on maize production in various Asian *** studies have shown that the invasion of this pest can alter the species relationships of maize pests,but the actual impact on maize pest management is still *** study investigated the changes in maize pest occurrence and pesticide use in the annual breeding areas of *** in Yunnan Province and the Guangxi Zhuang Autonomous Region of China during 2017-2021,based on surveys and interviews with small farmers in maize *** results showed that *** has emerged as the dominant species among maize pests after invasion and colonization,replacing traditional pests such as Ostrinia furnacalis,Spodoptera litura,Agrotis ypsilon,and Rhopalosiphum *** variety of pesticides used for maize pest control has changed from chlorpyrifos,lambda-cyhalothrin,and acetamiprid to emamectin benzoate-based pesticides with high effectiveness against ***,the frequency of maize pest chemical applications has increased from an average of 5.88 to 7.21 times per season,with the amounts of pesticides used in summer and autumn maize being significantly higher than in winter and spring maize,thereby increasing application costs by more than 35%.The results of this study clarified the impact of *** invasion on maize pest community succession and chemical pesticide use in tropical and south subtropical China,thereby providing a baseline for modifying the regional control strategies for maize pests after the invasion of this relatively new pest.

关键词： Spodoptera frugiperda annual breeding region sweet waxy corn economic evaluation

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Two sex pheromone receptors for sexual communication in the American cockroach

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Science China(Life Sciences) 2024年第7期67卷 1455-1467页

作者： Na Li Renke Dong Huanchao Zeng Yan Zhang Run Huang Wei Liu Fengming Cao Jincong Yu Mingtao Liao Jingyou Chen Wenlei Zhang Zejian Huang Jiahui Wang Li Li Shen Zhu Danyan Huang Zining Li Xiaoshuai Zhang Dongwei Yuan Nan Chen Yongliang Fan Guirong Wang Coby Schal Yufeng Pan Sheng Li Guangdong Provincial key laboratory of Insect Developmental biology and Applied Technology Institute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhou 510631China Guangmeiyuan R&D Center Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied TechnologySouth China Normal UniversityMeizhou 514589China Lingnan Guangdong laboratory of Modern Agriculture Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China State key laboratory of Crop stress biology for Arid Areas and Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of AgricultureNorthwest A&F UniversityYangling 712100China Department of Entomology and plant Pathology North Carolina State UniversityRaleigh 27695USA The key laboratory of Developmental Genes and Human Disease School of Life Science and TechnologySoutheast UniversityNanjing 210096China

Volatile sex pheromones are vital for sexual communication between males and *** of the American cockroach,Periplaneta americana,produce and emit two sex pheromone components,periplanone-A(PA)and periplanone-B(PB).Although PB is the major sex attractant and can attract males,how it interacts with PA in regulating sexual behaviors is still *** this study,we found that in male cockroaches,PA counteracted PB *** identified two odorant receptors(ORs),OR53 and OR100,as PB/PA and PA receptors,***53 and OR100 were predominantly expressed in the antennae of sexually mature males,and their expression levels were regulated by the sex differentiation pathway and nutrition-responsive *** localization of OR53 and OR100 in male antennae further revealed that two types of sensilla coordinate a complex two-pheromone-two-receptor pathway in regulating cockroach sexual *** findings indicate distinct functions of the two sex pheromone components,identify their receptors and possible regulatory mechanisms underlying the male-specific and age-dependent sexual behaviors,and can guide novel strategies for pest management.

关键词： sex pheromone odorant receptor sexual attraction sex differentiation cockroach

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The MtRGF6 Peptide Differentially Regulates Root Development and Symbiotic Nodulation of Medicago truncatula and Lotus japonicus

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1237-1248页

作者： Junhui Yan Yawen Wang Qiong Li Yu Zhou Xu Wang Li Luo School of Life Sciences Shanghai Key Laboratory of Bio-Energy CropsShanghai UniversityShanghai200444China College of Life Science State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefei230036China

Rhizobia induces nitrogen-ﬁxing nodules in legumes used in agricultural production,providing a direct source of combined nitrogen to leguminous *** peptides,such as CLAVATA3/EMBRYO SURROUNDING REGION peptides(CLE),are known to regulate the formation and development of nitrogen-ﬁxing nodules in *** meristem growth factor(RGF)peptides from Medicago truncatula not only regulate root develop-ment but also modulate nodulation symbiosis with Sinorhizobium ***,the impact of RGF peptides from one leguminous species on the others remains *** this study,we investigate the effects of the RGF family peptide MtRGF6p from *** on nodulation symbiosis and root development in Lotus *** MtRGF6 gene is predominantly expressed in the root nodules of *** and shows low identity with RGF homologous genes from *** gene promoter is active in the primordia of root nodules and lat-eral roots,as well as in young nodules and roots,and the meristem,infection,and nitrogen-ﬁxing regions of the mature *** synthesized MtRGF6p promoted primary root growth in *** but sup-pressed the growth of *** primary *** peptide negatively affected the initiation of nodule primor-dia,the formation of infection threads,and nodulation in both legumes,with a low dosage showing effects on *** compared to *** results suggest that the MtRGF6 peptide from *** may serve as an inter-species signal affecting the root organ development of ***.

关键词： Peptide RGF legume symbiotic nodulation lateral root

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TabHLH27 orchestrates root growth and drought tolerance to enhance water use efficiency in wheat

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Journal of Integrative plant biology 2024年第7期66卷 1295-1312页

作者： Dongzhi Wang Xiuxiu Zhang Yuan Cao Aamana Batool Yongxin Xu Yunzhou Qiao Yongpeng Li Hao Wang Xuelei Lin Xiaomin Bie Xiansheng Zhang Ruilian Jing Baodi Dong Yiping Tong Wan Teng Xigang Liu Jun Xiao key laboratory of plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022China key laboratory of Crop biology College of Life SciencesShandong Agricultural UniversityTai'an 271018China State key laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Education key laboratory of Molecular and Cellular biology Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell Signaling and Environmental AdaptationHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China Centre of Excellence for plant and Microbial Science(CEPAMS) JIC‐CASBeijing 100101China

Cultivating high-yield wheat under limited water resources is crucial for sustainable agriculture in semiarid *** water scarcity,plants activate drought response signaling,yet the delicate balance between drought tolerance and development remains *** genome-wide association studies and transcriptome profiling,we identified a wheat atypical basic helix-loop-helix(b HLH)transcription factor(TF),Tab HLH27-A1,as a promising quantitative trait locus candidate for both relative root dry weight and spikelet number per spike in *** HLH27-A1/B1/D1 knockout reduced wheat drought tolerance,yield,and water use efficiency(WUE).Tab HLH27-A1 exhibited rapid induction with polyethylene glycol(PEG)treatment,gradually declining over *** activated stress response genes such as Ta CBL8-B1 and Ta CPI2-A1 while inhibiting root growth genes like Ta SH15-B1 and Ta WRKY70-B1 under short-term PEG *** distinct transcriptional regulation of Tab HLH27-A1 involved diverse interacting factors such as Ta ABI3-D1 and Tab *** variations of Tab HLH27-A1influence its transcriptional responses to drought stress,with Tab HLH27-A1^(Hap-II)associated with stronger drought tolerance,larger root system,more spikelets,and higher WUE in ***,the excellent Tab HLH27-A1^(Hap-II)was selected during the breeding process in China,and introgression of Tab HLH27-A1^(Hap-II)allele improved drought tolerance and grain yield,especially under water-limited *** study highlights Tab HLH27-A1's role in balancing root growth and drought tolerance,providing a genetic manipulation locus for enhancing WUE in wheat.

关键词： drought tolerance GWAS root growth wheat WUE

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Masculinizer gene controls sexual differentiation in Hyphantria cunea

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Insect Science 2024年第2期31卷 405-416页

作者： Xiaowei Li Huihui Liu Honglun Bi Yaohui Wang Jun Xu Sufang Zhang Zhen Zhang Ze Zhang Yongping Huang laboratory of Evolutionary and Functional Genomics School of Life SciencesChongqing UniversityChongqingChina CAS key laboratory of Insect Developmental and Evolutionary biology CAS Centerfor Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyShanghaiChina key laboratory of Forest Protection Research Institute of Forest EcologyEnvironment and ProtectionChinese Academy of ForestryState Forestry AdministrationBeijingChina

The Masculinizer gene,Masc,encodes a lepidopteran-specific novel CCCHtype zinc finger protein,which controls sex determination and dosage compensation in Bombyx *** the potential application of it in pest control,it is necessary to investigate the function of Masc gene in Hyphantria cunea,a globally invasive forest *** the present study,we identified and functionally characterized the Masc gene,HcMasc,in *** analysis revealed that HcMASC contained the conserved CCCH-type zinc finger domain,nuclear localization signal,and male determining domain,in which the last was confirmed to be required for its masculinization in BmN cell ***,expression data showed that unlike male-biased expression in ***,Hc-Masc gene expresses in main all developmental stages or tissues in both *** regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9-based disruption of the common exons 1 and 3 of the HcMasc gene resulted in imbalanced sex ratio and abnormal external genitalia of both *** results suggest that the HcMasc gene is required for both male and female sexual differentiation and dosage compensation in *** and provide a foundation for developing better strategies to control this pest.

关键词： CRISPR/Cas9 dosage compensation Hyphantria cunea Masc sexual differentiation

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IbNIEL-mediated degradation of IbNAC087 regulates jasmonic acid-dependent salt and drought tolerance in sweet potato

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Journal of Integrative plant biology 2024年第2期66卷 176-195页

作者： Xu Li Zhen Wang Sifan Sun Zhuoru Dai Jun Zhang Wenbin Wang Kui Peng Wenhao Geng Shuanghong Xia Qingchang Liu Hong Zhai Shaopei Gao Ning Zhao Feng Tian Huan Zhang Shaozhen He key laboratory of Sweet Potato biology and Biotechnology Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis&Utilization and Joint Laboratory for International Cooperation in Crop Molecular BreedingMinistry of EducationCollege of Agronomy&BiotechnologyChina Agricultural UniversityBeijing 100193China Sanya Institute of China Agricultural University Sanya 572025China State key laboratory of plant Physiology and Biochemistry National Maize Improvement CenterKey Laboratory of Biology and Genetic Improvement of MaizeBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China

Sweet potato(Ipomoea batatas[L.]Lam.)is a crucial staple and bioenergy *** abiotic stress tolerance holds significant importance in fully utilizing marginal *** processes regulate abiotic stress responses,yet the molecular regulatory mechanisms in sweet potato remain *** this study,a NAC(NAM,ATAF1/2,and CUC2)transcription factor,IbNAC087,was identified,which is commonly upregulated in salt-and drought-tolerant *** of IbNAC087 increased salt and drought tolerance by increasing jasmonic acid(JA)accumulation and activating reactive oxygen species(ROS)scavenging,whereas silencing this gene resulted in opposite ***-rich IbNAC087-OE(overexpression)plants exhibited more stomatal closure than wild-type(WT)and IbNAC087-Ri plants under NaCl,polyethylene glycol,and methyl jasmonate ***087 functions as a nuclear transcriptional activator and directly activates the expression of the key JA biosynthesisrelated genes lipoxygenase(IbLOX)and allene oxide synthase(IbAOS).Moreover,IbNAC087 physically interacted with a RING-type E3 ubiquitin ligase NAC087-INTERACTING E3 LIGASE(IbNIEL),negatively regulating salt and drought tolerance in sweet *** ubiquitinated IbNAC087 to promote 26S proteasome degradation,which weakened its activation on IbLOX and *** findings provide insights into the mechanism underlying the IbNIEL-IbNAC087 module regulation of JA-dependent salt and drought response in sweet potato and provide candidate genes for improving abiotic stress tolerance in crops.

关键词： abiotic tolerance IbNAC087 IbNIEL JA sweet potato

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A bacterial protein Rhp-PSP inhibits plant viral proliferation through endoribonuclease activity

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Journal of Integrative Agriculture 2024年第6期23卷 1967-1978页

作者： Lijie Chen Qianze Peng Xiaohua Du Weixing Zhang Ju’e Cheng Shu’e Sun Deyong Zhang Pin Su Yong Liu Longping Branch College of BiologyHunan UniversityChangsha 410082China State key laboratory of Hybrid Rice/Institute of plant Protection Hunan Academy of Agricultural SciencesChangsha 410125China

plant virus causes massive crop losses ***,there is currently no effective measure to control plant viral ***,we identify an antiviral protein Rhp-PSP,produced by the bacterial Rhodopseudomonas palustris strain *** this study,we discover that the antiviral activity of Rhp-PSP relies on its endoribonuclease *** the arginine(R)residue at position 129 onto alanine(A)abolishs its endoribonuclease activity on coat protein(CP)RNA of tobacco mosaic virus(TMV),consequentially,compromises the antiviral activity of *** investigation demonstrates that,the mutant Rhp-PSP^(R129A)is unable to form the homotrimer as the wild type,indicating the importance of quaternary junction for the endoribonuclease *** of Rhp-PSP in Nicotiana benthamiana significantly enhances the resistance against TMV of seedlings,while expression of Rhp-PSP^(R129A)did not,confirming that endoribonuclease activity is responsible for the antiviral activity of *** addition,foliar spray of Rhp-PSP solution on tomato and pepper plants significantly reduces the disease index of viral diseases,indicating that Rhp-PSP shows potential to develop antiviral agent in practice.

关键词： Rhodopseudomonas palustris Rhp-PSP tobacco mosaic virus endoribonuclease antiviral activity

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Black phosphorus quantum dots induce myocardial inflammatory responses and metabolic disorders in mice

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Journal of Environmental Sciences 2024年第3期137卷 53-64页

作者： Chao Shen Xiaoyan Ding Jinpeng Ruan Fengkai Ruan Weiping Hu Jiyi Huang Chengyong He Yi Yu Zhenghong Zuo Department of Nephrology State Key Laboratory of Cellular Stress BiologySchool of Life SciencesFaculty of Medicine and Life SciencesFujian Clinical Research Center for Chronic Glomerular DiseaseThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361102China

As an ultrasmall derivative of black phosphorus(BP)sheets,BP quantum dots(BP-QDs)have been effectively used in many ***,information on the cardiotoxicity induced by BP-QDs remains *** aimed to evaluate BP-QD-induced cardiac toxicity in *** examination of heart tissue sections was *** sequencing,real-time quantitative PCR(RT–qPCR),western blotting,and enzyme-linked immunosorbent assay(ELISA)assays were used to detect the m RNA and/or protein expression of proinfammatory cytokines,nuclear factor kappa B(NF-κB),phosphatidylinositol3 kinase-protein kinase B(PI3K-AKT),peroxisome proliferator-activated receptor gamma(PPARγ),and glucose/lipid metabolism pathway-related *** found that heart weight and heart/body weight index(HBI)were significantly reduced in mice after intragastric administration of 0.1 or 1 mg/kg BP-QDs for 28 *** addition,obvious infammatory cell infiltration and increased cardiomyocyte diameter were observed in the BP-QD-treated *** expression of proinfammatory cytokines and genes related to the NF-κB signaling pathway further confirmed that BP-QD exposure induced infammatory *** addition,BP-QD treatment also affected the PI3K-AKT,PPARγ,thermogenesis,oxidative phosphorylation,and cardiac muscle contraction signaling *** expression of genes related to glucose/lipid metabolism signaling pathways was dramatically affected by BP-QD exposure,and the effect was primarily mediated by the PPAR signaling *** study provides new insights into the toxicity of BP-QDs to human health.

关键词： BP-QDs Cardiac toxicity Infammatory responses NF-κB signaling pathway PPARγsignaling pathway Glucose/lipid metabolism

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AtRKD5 inhibits the parthenogenic potential mediated by AtBBM

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Journal of Integrative plant biology 2024年第7期66卷 1517-1531页

作者： Qiyan Liu Dongfen Han Denghu Cheng Jinfan Chen Shujuan Tian Jiafa Wang Man Liu Li Yuan State key laboratory of Crop stress Resistance and High‐Efﬁciency Production College of HorticultureNorthwest A&F UniversityYangling 712100China

Parthenogenesis,the development of unfertilized egg cells into embryos,is a key component of ***(BABY BOOM),a crucial regulator of embryogenesis in Arabidopsis,possesses the capacity to shift nutritional growth toward reproductive ***,the mechanisms underlying AtBBM-induced parthenogenesis remain largely unexplored in dicot *** findings revealed that in order to uphold the order of sexual reproduction,the embryo-specific promoter activity of AtBBM as well as repressors that inhibit its expression in egg cells combine to limiting its ability to induce ***,AtRKD5,a RWPRK domain-containing(RKD)transcription factor,binds to the 3'end of AtBBM and is identified as one of the inhibitory factors for AtBBM expression in the egg *** the atrkd5 mutant,we successfully achieved enhanced ectopic expression of AtBBM in egg cells,resulting in the generation of haploid offspring via parthenogenesis at a rate of 0.28%.Furthermore,by introducing chimeric Arabidopsis and rice BBM genes into the egg cell,we achieved a significant 4.6-fold enhancement in haploid induction through the atdmp8/9 *** findings lay a strong foundation for further exploration of the BBM-mediated parthenogenesis mechanism and the improvement of haploid breeding efficiency mediated by the dmp8/9 mutant.

关键词： AtBBM atdmp AtRKD5 haploid induction parthenogenesis

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