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n-octyl acrylate is a candidate sex pheromone component involved in courtship in parasitoid wasp Microplitis mediator

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Insect Science 2024年第4期31卷 1200-1210页

作者： Yu-Xiao Tao Shuang Shan Youssef Dewer Shan-Ning Wang Adel Khashaveh Rui-Jun Li Yong-Jun Zhang State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina College of plant protection Agricultural University of HebeiBaodingHebei ProvinceChina Bioassay research Department Central Agricultural Pesticide LaboratorySabahia Plant Protection Research StationAgricultural Research CenterAlexandriaEgypt Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China Institute of Plant ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijingChina

Sex pheromones are considered to play critical roles in partner communication of most parasitic ***,the identification of sex pheromone components remains limited to a few families of parasitoid *** this study,we functionally characterized a candidate sex pheromone component in Microplitis mediator(Hymenoptera:Braconidae),a solitary parasitoid of Noctuidae *** found that the body surface extract from female wasps could significantly stimulate courtship behavior of *** chromatography-electroantennographic detection(GC-EAD)analysis revealed that a candidate semiochemical from extract triggered significant electrophysiological response of antennae of *** performing gas chromatography-mass spectrometer(GC-MS)measurement,GC-EAD active compound was identified as n-octyl acrylate,a candidate sex pheromone component in female *** electroantennogram(EAG)tests,antennae of male wasps showed significantly higher electrophysiological responses to n-octyl acrylate than those of females.Y-tube olfactometer assays indicated that male wasps significantly chose n-octyl acrylate compared with the ***,male wasps showed a remarkable preference for n-octyl acrylate in a simulated field condition behavioral trial;simultaneously,n-octyl acrylate standard could also trigger significant courtship behavior in *** propose that n-octyl acrylate,as a candidate vital sex pheromone component,could be utilized to design behavioral regulators of *** to implement the protection and utilization of natural enemies.

关键词： behavioral assay courtship behavior GC-EAD analysis Microplitis mediator sex pheromone

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The temporal-spatial expression and functional analysis of three gustatory receptor genes in Solenopsis invicta using sweet and bitter compounds

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Insect Science 2024年第2期31卷 448-468页

作者： Muhammad Irfan Waris Yanyuan Lei Guojun Qi Ziying Guan Abdul Rashied Jie Chen Lihua Lyu institute of plant protection Guangdong Academy of Agricultural SciencesGuangdong Provincial Key Laboratory of High Technology for Plant ProtectionGuangzhouChina Department of Entomology College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina

The insect gustatory system participates in identifying potential food sources and avoiding toxic *** this process,gustatory receptors(GRs)recognize feeding stimulant and deterrent ***,the GRs involved in recognizing stimulant and deterrent compounds in the red imported fire ant,Solenopsis invicta,remain ***,we conducted a study on the genes SinvGR1,SinvGR32b,and SinvGR28a to investigate the roles of GRs in detecting feeding stimulant and deterrent *** this current study,we found that sucrose and fructose are feeding stimulants and the bitter compound quinine is a feeding *** fire ant workers showed significant behavior changes to avoid the bitter taste in feeding stimulant *** transcription quantitative real-time polymerase chain reaction results from developmental stages showed that the SinvGR1,SinvGR32b,and SinvGR28a genes were highly expressed in fire ant ***-specific expression profiles indicated that SinvGR1,SinvGR32b,and SinvGR28a were specifically expressed in the antennae and foreleg tarsi of workers,whereas SinvGR32b gene transcripts were also highly accumulated in the male ***,the silencing of SinvGRI or SinvGR32b alone and the co-silencing of both genes disrupted worker stimulation and feeding on sucrose and *** results also showed that SinvGR28a is required for avoiding quinine,as workers with knockdown of the SinvGR28a gene failed to avoid and fed on *** study first identified stimulant and deterrent compounds of fire ant workers and then the GRs involved in the taste recognition of these *** study could provide potential target gustatory genes for the control of the fire ant.

关键词： behavioral responses feeding assays gustatory receptors RNA interference Solenopsis invicta temporal-spatial expression

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Synergistic effects of the entomopathogenic fungus Isaria javanica and low doses of dinotefuran on the efficient control of the rice pest Sogatella furcifera

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Journal of Integrative Agriculture 2024年第2期23卷 621-638页

作者： Tingting Zhou Qian Zhao Chengzhou Li Lu Ye Yanfang Li Nemat OKeyhani Zhen Huang Department of Entomology College of Plant ProtectionSouth China Agricultural UniversityGuangzhou 510642China Guangdong Provincial Key Laboratory of High Technology for plant protection Plant Protection Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510642China Department of Microbiology and Cell Science Institute of Food and Agricultural SciencesUniversity of FloridaFL 32611USA

The rice planthopper,Sogatella furcifera,is a piercing-sucking insect pest of rice,Oryza *** is responsible for significant crop yield losses,and has developed moderate to high resistance to several commonly used chemical *** investigated the effects of the insect fungal pathogen Isaria javanica,alone and in combination with the chemical insecticide dinotefuran,on *** under both laboratory and field *** results show that *** displays high infection efficiency and mortality for different stages of ***,reducing adult survival,female oviposition and ovary *** bioassays showed that the combined use of *** with a low dose(4-16 mg L^(-1))of dinotefuran resulted in higher mortality in *** than the use of *** or dinotefuran *** combined treatment also had more significant effects on several host enzymes,including superoxide dismutase,catalase,peroxidase,and prophenol oxidase *** field trials,*** effectively suppressed populations of rice planthoppers to low levels(22-64%of the level in untreated plots).Additional field experiments showed synergistic effects,i.e.,enhanced efficiency,for the control of *** populations using the combination of a low dose of ***(1×10^(4) conidia mL^(-1))and a low dose of dinotefuran(~4.8-19.2%of normal field use levels),with control effects of>90%and a population level under 50 insects per 100 hills at 3-14 days *** findings indicate that the entomogenous fungus *** offers an attractive biological control addition as part of the integrated pest management(IPM)practices for the control of rice plant pests.

关键词： Isaria javanica Sogatella furcifera entomopathogenic fungus white planthopper rice synergistic effect on pest control

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Minerals in edible insects:a review of content and potential for sustainable sourcing

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Food Science and Human Wellness 2024年第1期13卷 65-74页

作者： Mingxing Lu Chenxu Zhu Sergiy Smetana Ming Zhao Haibo Zhang Fang Zhang Yuzhou Du College of plant protection&institute of Applied Entomology Yangzhou UniversityYangzhou 225009China German institute of Food Technologies(DIL e.V.) Quakenbrück D-49610Germany Jiangsu plant protection and plant Quarantine Station Nanjing 210036China Joint International research Laboratory of Agriculture and Agri-Product Safety Yangzhou UniversityYangzhou 225009China

In response to the rapid increase in world population and subsequent demands for food,edible insects represent an alternative food source for humans that is rich in proteins,amino acids and *** is a tradition in many countries including China and Thailand,and edible insects have attracted a lot of attention in Western World due to their suitable nutrient composition,high mineral content(e.g.,Fe,Zn,Ca,Mg)and potential use as a supplement in human *** this study,we surveyed mineral content in seven insect orders and 67 species of mass produced and wild-harvested edible *** total content of essential elements in edible insects was very high in Tenebrio molitor,Bombyx mori,and Zonocerus *** heavy metal content(summarized for eight species)was below the maximum limit allowed for safe *** supply of minerals derived from insect biomass is complicated due to the high variations of mineral content in insects and the potential of its change due to processing.

关键词： Edible insects Minerals Nutrition Food safety Sustainability

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Juvenile hormone induces reproduction via miR-1175-3p in the red imported fire ant, Solenopsis invicta

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Insect Science 2024年第2期31卷 371-386页

作者： Jie Chen Ziying Guan Yunjie Ma Qingxing Shi Ting Chen Muhammad Irfan WarisLihua Lyu Lihua Lyu Yongyue Lu Guojun Qi institute of plant protection Guangdong Academy of Agricultural SciencesKey Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of High Technology for Plant ProtectionGuangzhouChina Department of Entomology College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina

Juvenile hormone(JH)acts in the regulation of caste differentiation between queens and workers(i.e.,with or without reproductive capacity)during vitellin synthesis and oogenesis in social ***,the regulatory mechanisms have not yet been ***,we identified a highly expressed microRNA(miRNA),miR-1175-3p,in the red imported fire ant,Solenopsis *** found that miR-1175-3p is prominently present in the fat bodies and ovaries of ***,miR-1175-3p interacts with its target gene,broad-complex core(Br-C),in the fat *** utilizing miR-1175-3p agomir,we successfully suppressed the expression of the Br-C protein in queens,resulting in reduced vitellogenin expression,fewer eggs,and poorly developed ***,decreasing miR-1175-3p levels led to the increased expression of Br-C and vitellogenin in workers,triggering the“re-development”of the ***,when queens were fed with JH,the expression of miR-1175-3p decreased,whereas the expression of vitellogenin-2 and vitellogenin-3 ***,the suppression of fertility in queens caused by treatment with agomir miR-1175-3p was completely rescued by the increased vitellogenin expression induced by being fed with *** results suggest the critical role of miR-1175-3p in JH-regulated reproduction,shedding light on the molecular mechanism underlying miRNA-mediated fecundity in social insects and providing a novel strategy for managing ***.

关键词： juvenile hormone miR-1175-3p red imported fire ant reproduction social insects vitellogenin

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Cold storage alters the fat-trehalose trade-off,decreases the flight ability,and maintains the high survival rate and flight speed of Osmia excavata(Hymenoptera:Megachilidae)

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Insect Science 2024年第3期31卷 927-936页

作者： Yingying Song Li Liu Fang Ouyang Hongying Cui Wenxiu Guo Suhong Lv Baohua Ye Lili Li Yi Yu Xingyuan Men institute of plant protection Shandong Academy of Agricultural SciencesJinanChina College of plant protection Shandong Agricultural UniversityJinanChina State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBejingChina

Osmia solitary bees are important pollinators of various crops *** has been widely used to synchronize the emergence time of Osmia species from cocoons with the blooming time of different crops,but the fitness of Osmia after refrigeration remains ***,the effects of long-term refrigeration at 0℃on the vitality,flight ability,and metabolism of Osmia excavata,which is known as the"king of pollination"in China,were *** survival rate(>90%before 120 d),weight loss rate(research directions that could improve the ecological service function of refrigerated ***.

关键词： ecological service value flight ability Osmia pollination efficiency refrigeration vitality

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Competitive interactions between invasive fall armyworm and Asian corn borer at intraspecific and interspecific level on the same feeding guild

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Insect Science 2024年第4期31卷 1313-1325页

作者： Jingfei Guo Jianqin Shi Hailiang Han Ivan Rwomushana Abid Ali Yeeyee Myint Zhenying Wang State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina Zhejiang Dongyang Maize research institute DongyangZhejiangChina CAB International(CABI) NairobiKenya Department of Entomology University of AgricultureFaisalabadPunjabPakistan plant protection Division Department of AgricultureMinistry of AgricultureLivestock and IrrigationYangonMyanmar

Interspecific competition is an important factor in the population dynamics and geographical distribution of insect *** armyworm(FAW),Spodoptera frugiperda,an invasive species,and the Asian corn borer(ACB),Ostrinia furnacalis,a native pest species are major pests on maize in China,posing a threat to maize yield and grain quality.A series of laboratory,greenhouse,and field experiments were conducted to elucidate the competitive interactions between FAW and *** the laboratory experiments,FAW exhibited aggressive behaviors more frequently when compared with ACB,while the latter species exhibited defense behaviors more *** intraspecific competition was recorded in the FAW conspecific rather than in ACB,particularly in the 6th larval *** had a higher interspecific competitive advantage through intraguild predation over ACB,resulting in partial or complete displacement ACB when initially the ratio of the 2 species was 1:*** interspecific competition also had significantly influenced on the population parameters,defensive enzymes,and nutrient of these 2 *** interaction proved that the response of superoxide,catalase,and soluble protein in FAW were significantly increased,whereas the total sugar content in both species was substantially *** rate,and the plant damage that co-infested by both species varied significantly among the sequential combinations under greenhouse and field *** consistently exhibited stronger intraspecific aggression than ACB under laboratory and field conditions when co-existing on the same feeding *** findings contribute to efforts toward the improvement of integrated pest management programs for FAW,in decision making for invasive and native pests’management strategies to reduce the high risks of FAW and ACB outbreaks.

关键词： Asian corn borer defensive enzyme fall armyworm interspecific competition intraspecific competition survival rate

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Pre-mating nitenpyram exposure in male mice leads to depression-like behavior in offspring by affecting tryptophan metabolism in gut microbiota

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Journal of Environmental Sciences 2024年第3期137卷 120-130页

作者： Sen Yan Wei Sun Sinuo Tian Zhiyuan Meng Jinling Diao Zhiqiang Zhou Li Li Wentao Zhu Innovation Center of Pesticide research Department of Applied ChemistryCollege of ScienceChina Agricultural UniversityBeijing 100193China College of plant protection/Joint International research Laboratory of Agriculture&Agri-Product Safety Yangzhou UniversityYangzhou 225009China College of plant protection Shanxi Agricultural UniversityTaiyuan 030031China

Several studies have confirmed that the health status of the paternal affects the health of the offspring,however,it remains unknown whether paternal exposure to pesticides affect the offspring ***,we used untargeted metabolomics and 16S rRNA sequencing technology,combined with tail suspension test and RT-qPCR to explore the effects of paternal exposure to nitenpyram on the neurotoxicity of *** results found that the paternal exposure to nitenpyram led to the offspring’s depressive-like behaviors,accompanied by the reduction of tryptophan content and the disorder of microbial abundance in the gut of the ***,we determined the expression of tryptophan metabolism-related genes tryptophanase(tnaA)and tryptophan hydroxylase 1(TpH1)in gut bacteria and colonic *** found that tryptophan is metabolized to indoles rather than being absorbed into colonocytes,which coursed the reduce of tryptophan availability after nitenpyram *** conclusion,our study deepens our understanding of the intergenerational toxic effects of pesticides.

关键词： Nitenpyram Depressive-like behaviors Gut microbiota Tryptophan metabolism

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Resistance development,cross-resistance,and fitness costs associated with Aphis gossypii resistance towards sulfoxaflor and acetamiprid in different geographical regions

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Journal of Integrative Agriculture 2024年第7期23卷 2332-2345页

作者： Wei Wang Renfu Zhang Haiyang Liu Ruifeng Ding Qiushi Huang Ju Yao Gemei Liang Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis of Ministry of Agriculture and Rural Affairs Institute of Plant ProtectionXinjiang Academy of Agricultural SciencesUrumqi 830091China State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China

Aphis gossypii has become increasingly difficult to manage due to its strong insecticide *** the laboratory,we established sulfoxaflor-resistant and acetamiprid-resistant strains in two *** populations with different basal insecticide resistance levels,and evaluated the effects of basal insecticide resistance on the resistance development and cross-resistance,as well as differences in *** the same selection pressure,Yarkant ***(with low basal insecticide resistance)evolved resistance to sulfoxaflor and acetamiprid more quickly than Jinghe ***(with high basal insecticide resistance),and the evolution of *** resistance to sulfoxaflor developed faster than acetamiprid in both Yarkant and Jinghe,Xingjiang,*** sulfoxaflor-resistant strains selected from Yarkant and Jinghe developed significant cross-resistance to acetamiprid,imidacloprid,thiamethoxam and pymetrozine;while the acetamiprid-resistant strains developed significant cross-resistance to sulfoxaflor,imidacloprid,thiamethoxam,pymetrozine,and *** relative fitness of *** decreased as the resistance to sulfoxaflor and acetamiprid *** relative fitness levels of the sulfoxaflor-resistant strains(Yarkant-SulR and Jinghe-SulR)were lower than those of the acetamipridresistant strains(Yarkant-AceR and Jinghe-AceR).In addition,the relative fitness levels of sulfoxaflor-and acetamiprid-resistant strains were lower in Jinghe than in *** summary,basal insecticide resistance of *** and insecticide type affected the evolution of resistance to insecticides in ***,as well as cross-resistance to other *** sulfoxaflor-and acetamiprid-resistant *** strains had obvious fitness *** results of this work will contribute to the insecticide resistance management and integrated management of ***.

关键词： Aphis gossypii sulfoxaflor acetamiprid cross-resistance fitness costs different sensitivities

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Both host and diet shape bacterial communities of predatory mites

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Insect Science 2024年第2期31卷 551-561页

作者： Hong Yan Endong Wang Guo-Shu Wei Bo Zhang Xuenong Xu institute of plant protection Chinese Academy of Agricultural SciencesBejingChina College of plant protection Hebei Agricultural UniversityBaodingHebei ProvinceChina Key Laboratory of Natural Enemies Insects Ministry of Agriculture and Rural AffairsBeijingChina

Microbial communities,derived from food,ambient,and inner,can affect host ecological adaption and *** with most phytophagous arthropods,predators may have more opportunities to develop specific microbiota depending on the level of prey *** explore how diet sources affect host microbial communities and vary across predator species,we considered 3 types of predators from Phytoseiidae(Acari:Mesostigmata):polyphagous(Amblyseius orientalis Ehara,Neoseiulus barkeri Hughes,and Amblyseius swirski Athias-Henrio),oligophagous(Neoseiulus californicus McGregor),and monophagous(Phytoseiulus persimilis Athias-Henriot)predatory *** polyphagous species were fed on 2 types of diets,natural prey and alternative *** using 16S rRNA sequencing,we found that diet was the main source of microbiota in predatory mites,while there was no clear pattern affected by prey *** 3 polyphagous predators,host species had a larger impact than prey on microbial *** *** or *** which showed consistency in their microbiota,prey switching significantly affectedβ-diversity of bacterial composition in ***,with 56%of the microbial *** short,our results confirmed the substantial influence of diet on host microbial construction in predatory species,and highlighted species differences in shaping the microbiota which are not necessarily related to prey specialization.

关键词： diet switching feeding habits host-microbial interactions invertebrate microbiota 16S rRNA

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