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Eicosanoids mediate nodulation reactions to bacterial Escherichia coil K 12 infections in larvae of the oriental blowfly, Chrysomya megacephala

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Insect Science 2009年第5期16卷 387-392页

作者： Fu Zhao Bing Chen Yong Wang Fen Zhu Chao-Liang Lei Hubei Insect Resources Utilization and Sustainable pest management key laboratory Huazhong Agricultual University Wuhan China state key laboratory of Integrated management of pest insects and rodents Institute of Zoology Chinese Academy of Sciences BeijingChina

Nodulation is the predominant cellular defense reaction to bacterial challenges in insects. In this study, third instar larvae of Chrysomya megacephala were injected with bacteria, Escherichia coli K 12 （10^6 CFU/mL, 2μL）, immediately prior to injection of inhibitors of eicosanoid biosynthesis, which sharply reduced nodulation response. Test larvae were treated with specific inhibitors ofphospholipase A2 （dexamethasone）, cyclo- oxygenase （indomethacin, ibuprofen and piroxicam）, dual cyclo-oxygenase/lipoxygenase （phenidone） and lipoxygenase （esculetin） and these reduced nodulation except esculetin. The influence of bacteria was obvious within 2 h of injection （5 nodules/larva）, and increased to a maximum after 8 h （with 15 nodules/larva）, and then significantly reduced over 24 h （9 nodules/larva）. The inhibitory influence of dexamethasone was apparent within 2 h of injection （4 vs. 5 nodules/larva）, and nodulation was significantly reduced, compared to control, over 24 h （5 vs. 8 nodules/larva）. Increased dosages of ibuprofen, indomethacin, piroxicam and phenidone led to decreased numbers of nodules. Nodules continued to exist during the pupal stage. However, the effects of dexamethasone were reversed by treating bacteria-injected insects with an eicosanoid-precursor polyunsaturated fatty acid, arachidonic acid. These findings approved our view that eicosanoid can mediate cellular defense mechanisms in response to bacterial infections in another Dipteran insect C. rnegacephala.

关键词： bacteria Chrysomya megacephala eicosanoids Escherichia coli K12 nodulation

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Serotonin Signaling Modulates Sexual Receptivity of Virgin Female Drosophila

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Neuroscience Bulletin 2022年第11期38卷 1277-1291页

作者： Baoxu Ma Rencong Wang Yaohua Liu Bowen Deng Tao Wang Fengming Wu Chuan Zhou state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100101China Department of Plant Protection Shanxi Agricultural UniversityJinzhong 30801China Chinese Institute for Brain Research Zhongguancun Life Sciences ParkBeijing 102206China Institute of Molecular Physiology Shenzhen Bay LaboratoryShenzhen 518132China

The choice of females to accept or reject male courtship is a critical decision for animal ***(5-hydroxytryptamine;5-HT)has been found to regulate sexual behavior in many species,but it is unclear how 5-HT and its receptors function to regulate different aspects of sexual *** we used Drosophila melanogaster as the model animal to investigate how 5-HT and its receptors modulate female sexual *** found that knockout of tryptophan hydroxylase(Trh),which is involved in the biosynthesis of 5-HT,severely reduced virgin female receptivity without affecting post-mating *** identified a subset of sexually dimorphic Trh neurons that co-expressed fruitless(fru),in which the activity was correlated with sexual receptivity in *** also found that 5-HT1A and 5-HT7 receptors regulate virgin female *** findings demonstrate how 5-HT functions in sexually dimorphic neurons to promote virgin female receptivity through two of its receptors.

关键词： Female sexual receptivity Serotonin 5-HT Fruitless Neurochemical 5-HT receptors Drosophila

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Interpretation of the biological species concept from interspecific hybridization of two Helicoverpa species

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Chinese Science Bulletin 2007年第2期52卷 284-286页

作者： WANG ChenZhu state key laboratory of Integrated management of pest insects and rodents Institute of Zoology Chinese Academy of Sciences Beijing 100080 China

The biological species concept defines species in terms of interbreeding. Interbreeding between spe-cies is prevented by reproductive isolation mechanisms. Based on our results of interspecific hybridi-zation between Helicoverpa armigera and Helicoverpa assulta, reproductive isolation mechanisms of the two species are analyzed. A combination of prezygotic factors (absent sex attraction and physical incompatibility of the genitalia) and postzygotic factors (female absence and partial sterility in F1 hy-brids) causes reproductive isolation of the two species. In addition, the role of interspecific hybridiza-tion in speciation is discussed.

关键词：生物学种生物进化杂交再生机制

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Revealing the real-time diversity and abundance of small mammals by using an Intelligent Animal Monitoring System(IAMS)

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Integrative Zoology 2022年第6期17卷 1121-1135页

作者： Xifu YANG Liliang HAN Yong WANG Cong GUO Zhibin ZHANG state key laboratory of Integrated management of pest insects and rodents in Agriculture Institute of ZoologyChinese Academy of SciencesBeijingChina Tsinghua-Qingdao Big Data Engineering Research Center QingdaoChina key laboratory of Agro-Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangshaChina College of Life Science Sichuan UniversityChengduChina CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijingChina

It is challenging to reveal the real-time spatio-temporal change of diversity and abundance of animals in natural systems by using traditional *** rapid advancement of new technologies such as the Internet of Things,artiﬁcial intelligence,and big-data processing,provide opportunities for developing novel technologies for moni-toring biodiversity and population abundance of animals with high efﬁcacy and *** this study,by using a recently developed Intelligent Animal Monitoring System,named“Vector Intelligent Monitoring System(VIMS)”,we investigated the real-time diversity and abundance of small mammals in the Banruosi forest,Dujiangyan region,southwest *** make a comparison of the VIMS with traditional methods,we also surveyed the diversity and abundance of small mammals using wired live *** to live traps,the VIMS has several advantages such as automatic data collection,intelligent identiﬁcation of species,data visualization,whole-day and all-weather op-eration,little disturbance to animals,real-time monitoring,and is capable of revealing more small mammal ***,the VIMS also has several disadvantages over live traps such as lower trapping efﬁciency and being more expensive than live *** results suggest that the VIMS can be a complementary method to traditional ones in monitoring the real-time spatio-temporal change of diversity and abundance of small mammals(especially rare species).In addition,the VIMS is useful in monitoring other small animals like small carnivores,birds,amphibians,and reptiles.

关键词： artiﬁcial intelligence(AI) Internet of Things(IoT) live trap small mammal species diversity

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Characterization of the microbial community response to replant diseases in peach orchards

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Journal of Integrative Agriculture 2023年第4期22卷 1082-1092页

作者： LI Wei-hua CHEN Peng WANG Yu-zhu LIU Qi-zhi laboratory of Entomology and Nematology College of Plant ProtectionChina Agricultural UniversityBeijing 100193P.R.China state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101P.R.China key laboratory of Natural Enemies insects of Ministry of Agriculture and Rural Affairs Shandong Provincial Engineering Technology Research Center on Biocontrol of Crop Diseases and Insect PestInstitute of Plant ProtectionShandong Academy of Agricultural SciencesJinan 250100P.R.China Institute of Forestry and Pomology Beijing Academy of Agriculture and Forestry SciencesBeijing 100093P.R.China

This study attempted to monitor the development of microbial communities and reveal the correlation between the soil microbial community and soil nutrient factors over different years following the replanting of peach *** replanted soil(RS)and nonreplanted soil(NRS)were collected from peach orchards with different growth years(1,3,5,7,9,11,and 13 years)in the same *** soil bacterial and fungal community diversities were analyzed by high-throughput sequencing *** analysis(RDA)was used to show the correlation between the soil microbial community and environmental *** alpha diversities of the bacterial and fungal communities indicated that RS contained a higher abundance of bacterial and fungal operational taxonomic units(OTUs)than *** and ANOSIM analyses showed that the soil bacterial and fungal communities were significantly(P3.0).In addition,the soil nutrient contents were lower in RS than in NRS in the early stage(1–5 years),and the RDA showed that bacterial and fungal phyla are closely associated with environmental variables,including the potential of hydrogen(pH),ammonium nitrogen(AN),available phosphorus(AP)and available potassium(AK).These results lead to a deeper understanding of the microbial responses to replanting in peach orchards.

关键词： replant disease complex syndrome microbial community high-throughput sequencing environmental variables

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Entry of severe fever with thrombocytopenia syndrome virus

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Virologica Sinica 2017年第1期32卷 44-50页

作者： Fei Yuan Aihua Zheng CAS key laboratory of Pathogenic Microbiology and Immunology Institute of Microbiology Chinese Academy of Sciences state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of Sciences

Severe fever with thrombocytopenia syndrome virus(SFTSV) is a globe-shaped virus covered by a dense icosahedral array of glycoproteins Gn/Gc that mediate the attachment of the virus to host cells and the fusion of viral and cellular membranes. Several membrane factors are involved in virus entry, including C-type lectins and nonmuscle myosin heavy chain ⅡA. The post-fusion crystal structure of the Gc protein suggests that it is a class Ⅱ membrane fusion protein, similar to the E/E1 protein of flaviviruses and alphaviruses. The virus particles are internalized into host cell endosomes through the clathrin-dependent pathway, where the low pH activates the fusion of the virus with the cell membrane. With information from studies on other bunyaviruses, herein we will review our knowledge of the entry process of SFTSV.

关键词：有 thrombocytopenia 症候群病毒(SFTSV ) 的严重发烧 bunyavirus 入口熔化受体

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Phylogenetic signal in gut microbial community rather than in rodent metabolic traits

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National Science Review 2023年第10期10卷 20-31页

作者： Xue-Ying Zhang Saeid Khakisahneh Wei Liu Xinyi Zhang Weiwei Zhai Jilong Cheng John R.Speakman De-Hua Wang state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of Sciences key laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences CAS Center for Excellence in Animal Evolution and Genetics University of Chinese Academy of Sciences Shenzhen key laboratory of Metabolic Health Center for Energy Metabolism and Reproduction Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Institute of Biological and Environmental Sciences University of Aberdeen state key laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences School of Life Sciences Shandong University CAS Center for Excellence in Biotic Interactions University of Chinese Academy of Sciences

Host phylogeny and environment have all been implicated in shaping the gut microbiota and host metabolic traits of ***,few studies have evaluated phylogeny-associated microbial assembly and host metabolic plasticity concurrently,and their relationships on both short-term and evolutionary *** report that the branching order of a gut microbial dendrogram was nearly congruent with phylogenetic relationships of seven rodent species,and this pattern of phylosymbiosis was intact after diverse laboratory *** rearing,diet or air temperature(Ta) acclimation induced alterations in gut microbial communities,but could not override host phylogeny in shaping microbial community assembly.A simulative heatwave reduced core microbiota diversity by 26% in these species,and led to an unmatched relationship between the microbiota and host metabolic phenotypes in desert ***,the similarity of metabolic traits across species at different Tas was not correlated with phylogenetic *** data demonstrated that the gut microbial assembly showed strong concordance with host phylogeny and may be shaped by environmental variables,whereas host metabolic traits did not seem to be linked with phylogeny.

关键词： gut microbiota metabolic plasticity phylogenetic signal host–bacteria interactions air temperature ( T a )

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Identification and temporal expression profiles of cuticular proteins in the endoparasitoid wasp,Microplitis mediator

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Insect Science 2020年第5期27卷 998-1018页

作者： Olga Volovych Zhe Lin Jie Du Hong Jiang Zhen Zou state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Recently,parasitoid wasp species Microplitis mediator has evoked increasing research attention due to its possible use in the control of Lepidoptera *** insect development involves changes in cuticle composition,identification and expression analysis of *** cuticular proteins may clarify the mechanisms involved in parasite development *** found 70 cuticular proteins from the *** transcrip-tome and divided them into seven distinct *** profiling indicated that most of these cuticular protein genes have expression peaks specific for one particular developmental stage of *** and pupae have the highest number of tran-scriptionally active cuticular protein genes(47 and 52 respectively).Only 12 of these genes maintained high expression activity during late larval *** analysis of two larval proteins,MmCPR3 and MmCPR 14,suggested their important role in the proper organization of the cuticle layers of *** *** larval development,normal cuticle formation can be supported by a limited number of cuticular proteins.

关键词： cuticular protein expression pattern Microplis mediator transcriptome

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Inducible pine rosin defense mediates interactions between an invasive insect-fungal complex and newly acquired sympatric fungal associates

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Integrative Zoology 2015年第5期10卷 453-464页

作者： Chihang CHENG Fangyuan ZHOU Min LU Jianghua SUN state key laboratory of Integrated management of pest insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Mutualism between insects and fungi drives insect evolutionary diversification and niche expansion;for invasive insects,however,mechanisms by which they maintain mutualistic relationships with beneficial fungi have not been clearly ***,we report that an invasive herbivorous insect,the red turpentine beetle(RTB),with its co-invasive mutualistic fungus,Leptographium procerum,has newly acquired a set of sympatric fungi during invasion,which could potentially outcompete the RTB mutualistic *** pine Pinus tabuliformis exhibited more rosin-based responses to the sympatric fungi than to RTB mutualistic fungus and,in return,the rapidly induced rosin suppressed the sympatric fungi more significantly than *** addition,from direct fungal pairing competitions,we found that the antagonistic effects of sympatric fungi on *** were drastically reduced under induced rosin *** results together with previous findings imply that pine oleoresin defense(turpentine and rosin)might have been exploited by the invasive mutualistic fungus ***,which helps to explain its invasion success and,by extension,its mutualistic partner RTB in China.

关键词： bark beetle-ophiostomatoid fungi-conifer interactions diterpene resin acid invasive species mutualism pine defense

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Colonization patterns of the red turpentine beetle, Dendroctonus valans （Coleoptera： Curculionidae）, in the Luliang Mountains, China

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Insect Science 2008年第4期15卷 349-354页

作者： Zhudong Liu Longwa Zhang Zhanghong Shi Bo Wang Wan Qiang Tao Jiang-hua Sun The state key laboratory of Integrated management of pest insects and rodents Institute of Zoology Chinese Academy of Sciences Beijing Anhui Agricultural University Hefei Beijing Forest pest Control Station Beijing China

The alien red turpentine beetle （RTB）, Dendroctonus valens LeConte, is one of the most economically destructive forest pests in China, having killed more than 6 million pines in recent years. There is a need to understand the basic biology and ecology of the beetle in order to develop an effective monitoring and management strategy. In this study, the effects of hillside exposure （south- and north-facing）, host-tree locations according to relief （valley, mid-slope, and ridge-top） and tree diameters on RTB colonization were investigated in one valley （3 sites）. The results showed that （i） RTB clearly preferred colonizing pines growing on south-facing hillsides, especially in the valley; （ii） RTB preferred to colonize the pines growing at the valley rather than pines growing at mid-slope or on ridge-top; （iii） RTB preferred to colonize trees with large diameter over small and medium-sized pines; （iv） the attack density of RTBs （measured by pitch tubes/pine） was obviously higher on larger trees standing in the valley than other trees standing at other places. We conclude from RTB colonization patterns, that RTB prefers to attack large trees in the valley, which may be useful in developing a pest-management strategy.

关键词： colonization patterns Dendroctonus valens Pinus tabulaeformis tree diameter,tree exposure tree location according to relief

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