检索结果-南通市图书馆

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Does scatter-hoarding of seeds benefit cache owners or pilferers?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2017年第6期12卷 477-488页

作者： Haifeng GU Qingjian ZHAO Zhibin ZHANG state key laboratory of integrated management of pest Insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

The scatter-hoarding behavior of granivorous rodents plays an important role in seed dispersal and seedling regeneration of trees,as well as the evolution of several well-known mutualisms between trees and rodents in forest *** it is difficult to identify seed hoarders and pilferers under field conditions by traditional methods,the full costs incurred and benefits accrued by scatter-hoarding have not been fully evaluated in most *** using infrared radiation camera tracking and seed tagging,we investigated the benefits and losses of scatter-hoarded seeds(Camellia oleifera)for 3 sympatric rodent species(Apodemus draco,Niviventer confucianus and Leopoldamys edwardsi)in a subtropical forest of Southwest China during 2013 to *** established the relationships between the rodents and the seeds at the individual *** each rodent species,we calculated the cache recovery rate of cache owners,as well as conspecific and interspecific pilferage *** found that all 3 sympatric rodent species had a cache recovery advantage with rates that far exceeded average pilferage rates over a 30-day tracking *** smallest species(***)showed the highest rate of scatter-hoarding and the highest recovery advantage compared with the other 2 larger species(*** and ***).Our results suggest that scatter-hoarding benefits cache owners in food competition,supporting the pilferage avoidance ***,scatter-hoarding behavior should be favored by natural selection,and plays a significant role in species coexistence of rodent community and in the formation of mutualism between seeds and rodents in forest ecosystems.

关键词： Chinese white-bellied rat Edward’s long-tailed rat oil tea scatter-hoarding benefits South China field mouse

No correlation between the diversity and productivity of assemblages: evidence from the phytophage and predator assemblages in various cotton agroecosystems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2014年第9期57卷 936-943页

作者： GAO Feng MEN XingYuan GE Feng College of Agriculture and Biotechnology China Agricultural University state key laboratory of integrated management of pest Insects and rodents Institute of Zoology Chinese Academy of Sciences Institute of Plant Protection Shandong Academy of Agricultural Sciences

Biodiversity research has shown that primary productivity increases with plant species number,especially in many experimental grassland ***,we assessed the correlation between productivity and diversity of phytophages and natural enemy assemblages associated with planting date and intercropping in four cotton ***-one pairs of data were used to determine Pearson correlations between species richness,total number of individuals,diversity indices and productivity for each assemblage every five days from 5 June to 15 September *** the same trophic level,the productivity exhibited a significant positive correlation with species richness of the phytophage or predator assemblage.A significant correlation was found between productivity and total number of individuals in most cotton ***,no significant correlations were observed between productivity and diversity indices(including indices of energy flow diversity and numerical diversity)in most cotton fields for either the phytophage or the predator *** richness of phytophage assemblage and total individual numbers were significantly correlated with primary ***,species richness of natural enemy assemblage and total number of individuals correlated with phytophage assemblage productivity.A negative but not significant correlation occurred between the indices of numerical diversity and energy flow diversity and lower trophic-level productivity in the cotton-phytophage and phytophage-predator assemblages for most intercropped cotton *** results clearly showed that there were no correlations between diversity indices and productivity within the same or lower trophic levels within the phytophage and predator assemblages in cotton agroecosystems,and inter-cropped cotton fields had a stronger ability to support the natural enemy assemblage and potentially to reduce phytophages.

关键词： correlation productivity diversity cotton agroecosystem insect assemblage

The endoparasitoid Psyllaephagus arenarius benefits from ectoparasitic venom via multiparasitism with the ectoparasitoid Tamarixia lyciumi

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Insect Science 2020年第4期27卷 815-825页

作者： Peng-Xiang Wu Bao-Xu Ma Feng-Ming Wu Jing Xu Run-Zhi Zhang state key laboratory of integrated management of pest Insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

As solitary nymphal parasitoids of Pamtrioza sinica,the ectoparasitoid Tamarixia lyciumi and the endoparasitoid Psyllaephagus arenarius act as effective biocontrol ***,it is necessary to facilitate mass productions of both *** showing an excellent parasitic ability,*** is often trapped fatally inside 5th-instar nymphs of *** due to strong host *** improve the emergence rate of ***,we evaluated whether *** could utilize *** venom via multiparasitism,so the parasitism characteristics of both species were examined between separate-existence(monoparasitism only)and co-existence(mono-and multiparasitism)***,the parasitism characteristics of *** on venom-injected hosts with/without *** eggs were tested to further identify the *** results showed the parasitism rate of *** was increased while that of *** did not change from separate-existence to co-existence *** intrinsic performances of two species in monoparasitism did not differ between separate-and co-existence *** monoparasitism(separate-existence)to multiparasitism(co-existence),no differences were detected in the intrinsic performances of ***,but those of *** were greatly *** *** venom injection,the parasitism characteristics of *** did not differ between venom-injected hosts with *** eggs and those without,further indicating *** benefited from the venom of *** females rather than *** egg/larval *** of negative effects,multiparasitism with ectoparasitoids improves endoparasitoids due to ectoparasitic *** study increases host resource utilization and provides creative ways for mass production of endoparasitoids.

关键词： biocontrol agent host resource utilization intrinsic performance mass production parasitism characteristics

Implication of metabolomic profiles to wide thermoneutral zone in Mongolian gerbils (Meriones unguiculatus)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2016年第4期11卷 282-294页

作者： Yaolong SHI Dehua WANG state key laboratory of integrated management of pest Insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Mongolian gerbils(Meriones unguiculatus)have evolved a wide thermoneutral zone(26.5-38.9°C)and high upper critical temperature,and appear to have a high tolerance for heat ***,we use a metabolomic approach to measure global metabolite profiles for gerbils between lower(27°C)and upper critical temperatures(38°C)to investigate the role of metabolomic characterization in maintaining basal metabolic rates within a wide thermoneutral *** found that in serum and liver,14 and 19 metabolites were significantly altered,*** the aerobic respiration-related tricarboxylic cycle(TCA),5 intermediates(isocitric acid,cis-aconitic acid,α-ketoglutaric acid,fumaric acid and malic acid)were increased in serum in 38°C animals;however,no such increase was found in the liver.A stable level of hepatic TCA cycle intermediates may be related to the steady state of aerobic respiration at 38°*** results also revealed that acute heat exposure caused increased oxidative stress and low molecular weight antioxidants in Mongolian *** methionine and 2-hydroxybutyrate suggest an accelerated synthesis of *** urate and its precursors,inosine and hypoxanthine,were detected at 38°***,threonate and oxalate involved in ascorbate synthesis and degradation were increased in serum at 38°*** conclusion,although dramatic metabolomic variation was found,a stable hepatic TCA cycle may contribute to maintaining a constant basal metabolic rate within a wide thermoneutral zone in Mongolian gerbils.

关键词： basal metabolic rate gas chromatography-mass spectrometry metabolomics low molecular weight antioxidants oxidative stress thermoneutral zone

Metabolic changes during larval–pupal metamorphosis of Helicoverpa armigera

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2023年第6期30卷 1663-1676页

作者： Xinxin Gao Jihong Zhang Qilian Qin Peipei Wu Huan Zhang Qian Meng state key laboratory of integrated management of pest Insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Energy metabolism is essential for insect metamorphosis. The accumulation and utilization of energy is still not completely clear during larval–pupal metamorphosis of holometabolous insects. We used metabolome and transcriptome analysis to reveal key metabolic changes in the fat body and plasma and the underlying metabolic regulation mechanism of Helicoverpa armigera, an important global agricultural insect pest, during larval–pupal metamorphosis. During the feeding stage, activation of aerobic glycolysis provided intermediate metabolites and energy for cell proliferation and lipid synthesis. During the non-feeding stages (the initiation of the wandering stage and the prepupal stage), aerobic glycolysis was suppressed, while, triglyceride degradation was activated in the fat body. The blocking of metabolic pathways in the fat body was probably caused by 20-hydroxyecdysone-induced cell apoptosis. 20-hydroxyecdysone cooperated with carnitine to promote the degradation of triglycerides and the accumulation of acylcarnitines in the hemolymph, allowing rapid transportation and supply of lipids from the fat body to other organs, which provided a valuable reference for revealing the metabolic regulation mechanism of lepidopteran larvae during the last instar. Carnitine and acylcarnitines are first reported to be key factors that mediate the degradation and utilization of lipids during larval–pupal metamorphosis of lepidopteran insects.

关键词： carbohydrate metabolism Lepidoptera lipid metabolism metamorphosis

Fungal defensins, an emerging source of anti-infective drugs

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2014年第10期59卷 931-935页

作者： Yucheng Wu Bin Gao Shunyi Zhu Group of Animal Innate Immunity State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences

With the rapid increase of antibiotic-resistant pathogens and the decline of discovery and development of new antibiotics,there is an urgent need to exploit alternative anti-infective *** defensin-like peptides are emerging as a class of new source of anti-infective drugs due to their potent antibacterial activity,low toxicity,and high serum *** genome sequencing projects combined with the development of recombinant expression techniques will accelerate the discovery of fungal defensinlike peptides.

关键词： Antibiotic-resistance Micasin Fungus

Inter-group associations in Mongolian gerbils:Quantitative evidence from social network analysis

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Integrative Zoology 2017年第6期12卷 446-456页

作者： Ke DENG Wei LIU Dehua WANG state key laboratory of integrated management of pest Insects and rodents Institute of ZoologyChinese Academy of SciencesBeijingChina and University of Chinese Academy of SciencesBeijingChina

Animals often interact non-randomly with conspecifics,and association preferences can differ across life-history stages to maximize individuals’*** gerbils(Meriones unguiculatus)are a social rodent that live in highly seasonal habitats and display seasonal fluctuations in population density,growth rate and the size of overlapped home ***,whether gerbils modify their social relationships at different life-history stages remains ***,we used social network analysis to examine whether social associations differ between the sexes and between life-history stages in a wild population of Mongolian *** quantified social attributes at both group level(assortativity)and individual level(social differentiation and degree,closeness and betweenness centrality);these attributes reflect individuals’social preferences and their potential influence on others in the *** found that both male and female gerbils established fewer inter-group social connections during the food-hoarding season than during the breeding season,revealing constraints on sociali***,during the food-hoarding season,degree centrality and social differentiation increased significantly whereas closeness and betweenness centrality decreased ***,these results suggest that gerbils have relatively more partners and preferred associations and decreased influence over others in the network during the food-hoarding *** addition,we found no significant difference in any of the social attribute between males and females,but there was a significant interaction effect between sex and season on degree,closeness and betweenness *** results demonstrate that Mongolian gerbils adjust their association strategies to adapt to the changes of life *** adjustments may balance the costs/benefits associated with survival and reproduction.

关键词： centrality inter-group associations life history Meriones unguiculatus social network analysis

Seed traits and taxonomic relationships determine the occurrence of mutualisms versus seed predation in a tropical forest rodent and seed dispersal system

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2014年第3期9卷 309-319页

作者： Zhenyu WANG Lin CAO Zhibin ZHANG state key laboratory of integrated management of pest Insects and rodents in Agriculture Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Although many studies have been carried out on plant-animal mutualistic assemblages,the roles of functional traits and taxonomy in determining both whether interactions involve mutualisms or predation and the structure of such assemblages are *** used semi-natural enclosures to quantitatively assess the interaction strengths between seeds of 8 sympatric tree species and 4 rodent species in a tropical forest in Xishuangbanna,Yunnan,Southwest *** found 2 clusters of species in the seed-rodent network represented by 2 genera in the Fagaceae(Castanopsis,Lithocarpus).Compared to seeds of 3 Castanopsis species,seeds with heavy weight,hard coat or caloric content(including 3 Lithocarpus species)were eaten less and more frequently hoarded by *** turn,hoarded seeds showed less predation and more mutualism with *** results suggest that seed traits significantly affected the hoarding behavior of rodents,and,consequently,the occurrence of mutualisms and predation as well as assemblage structure in the plant-animal seed dispersal ***nomically-related species with similar seed traits as functional groups belong to the same substructures in the *** results indicate that both seed traits and taxonomic relationships may simplify thinking about seed dispersal systems by helping to elucidate whether interactions are likely to be dominated by predation or mutualism.

关键词： hoarding behavior mutualism predation seed dispersal seed trait