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[PMID]:29301048
[Au] Autor:Shepherd WP; Sullivan BT
[Ad] Endereço:USDA Forest Service, Southern Research Station, Pineville, LA.
[Ti] Título:Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle.
[So] Source:J Insect Sci;18(1), 2018 Jan 01.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Local outbreak risk for the southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae), is forecast with a trapping survey conducted every spring throughout the southeastern United States. Traps baited with pine odors and components of the D. frontalis aggregation pheromone are used to obtain abundance estimates of both this species and its clerid predator Thanasimus dubius (F.) (Coleoptera: Cleridae); these data are entered into a predictive model that estimates outbreak risk. An attractant synergist for D. frontalis, endo-brevicomin, has recently been included in the survey lure, but it can have the unintended effect of attracting nontarget species Hylesinus pruinosus Eichhoff (Coleoptera: Curculionidae: Scolytinae) and Enoclerus nigripes (Say) (Coleoptera: Cleridae) which, due to their sometimes large numbers and general similarity in appearance to the target species, could complicate sorting and counting of trap catches. Analysis of bycatch data from a previously-published, 31-mo trapping study in Mississippi indicated that displacement of the endo-brevicomin releaser 6 m from the trap largely eliminated catches of the nontarget species H. pruinosus and E. nigripes while not reducing catches of the target species D. frontalis and T. dubius. Our analysis demonstrates that interspecific differences in spatial responses to attractive semiochemicals can be used to improve insect trap selectivity. Both nontarget beetle species were captured in highest numbers during late winter/early spring, coinciding with the D. frontalis survey.
[Mh] Termos MeSH primário: Compostos Bicíclicos Heterocíclicos com Pontes/administração & dosagem
Controle de Insetos/métodos
Feromônios/administração & dosagem
Gorgulhos
[Mh] Termos MeSH secundário: Animais
Monoterpenos
Pinus
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bridged Bicyclo Compounds, Heterocyclic); 0 (Monoterpenes); 0 (Pheromones); 9T71ZVB55P (frontalin); JPF3YI7O34 (alpha-pinene); KPU1SW45CD (brevicomin)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180105
[St] Status:MEDLINE
[do] DOI:10.1093/jisesa/iex106


  2 / 1158 MEDLINE  
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[PMID]:29274908
[Au] Autor:Luo C; Liu A; Long W; Liao H; Yang Y
[Ad] Endereço:Bamboo Diseases and Pests Control and Resources Development Key Laboratory of Sichuan Province, Leshan Normal University, Leshan 614000, Sichuan, China; College of Life Science, Leshan Normal University, Leshan 614000, Sichuan, China.
[Ti] Título:Transcriptome analysis of Cyrtotrachelus buqueti in two cities in China.
[So] Source:Gene;647:1-12, 2018 Mar 20.
[Is] ISSN:1879-0038
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In order to reduce the Cyrtotrachelus buqueti population, which is a serious pest in the bamboo industry, a range of approaches is required, which will be dependent on diverse gene expression influenced by environmental factors. In this study, samples from two regions of China, Muchuan in Sichuan Province and Chishui in Guizhou Province, were investigated through RNA-seq. Approximately 44 million high-quality reads were generated and 94.2% of the data was mapped to the transcriptome. A total of 15,641 out of the 29,406 identified genes were predicted. Moreover, 348 genes were differentially expressed between the two groups of imagoes (77 upregulated and 271 downregulated). The functional analysis showed that these genes were significantly enriched in the ribosome and metabolic pathway categories. The candidate genes contributing to the reduction in C. buqueti included 41 genes involved in the ribosome constitution category, five in the one­carbon pool pathway by folate category, and five heat shock protein genes. The downregulation of these candidate genes seems to have impaired metabolic processes, such as protein, DNA, RNA, and purine synthesis, as well as carbon and folate metabolism, subsequently resulting in the observed population reduction of C. buqueti. Furthermore, temperature, heavy metal content, and pH might influence the population by altering the expressions of genes involved in these metabolic processes.
[Mh] Termos MeSH primário: Transcriptoma/genética
Gorgulhos/genética
[Mh] Termos MeSH secundário: Animais
China
Cidades
Regulação para Baixo/genética
Perfilação da Expressão Gênica/métodos
Redes e Vias Metabólicas/genética
RNA/genética
Ribossomos/genética
Análise de Sequência de RNA/métodos
Regulação para Cima/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
63231-63-0 (RNA)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171225
[St] Status:MEDLINE


  3 / 1158 MEDLINE  
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[PMID]:29304036
[Au] Autor:Oren E; Klingeman W; Gazis R; Moulton J; Lambdin P; Coggeshall M; Hulcr J; Seybold SJ; Hadziabdic D
[Ad] Endereço:Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN, United States of America.
[Ti] Título:A novel molecular toolkit for rapid detection of the pathogen and primary vector of thousand cankers disease.
[So] Source:PLoS One;13(1):e0185087, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Thousand Cankers Disease (TCD) of Juglans and Pterocarya (Juglandaceae) involves a fungal pathogen, Geosmithia morbida, and a primary insect vector, Pityophthorus juglandis. TCD was described originally from dying Juglans nigra trees in the western United States (USA), but it was reported subsequently from the eastern USA and northern Italy. The disease is often difficult to diagnose due to the absence of symptoms or signs on the bark surface of the host. Furthermore, disease symptoms can be confused with those caused by other biotic and abiotic agents. Thus, there is a critical need for a method for rapid detection of the pathogen and vector of TCD. Using species-specific microsatellite DNA markers, we developed a molecular protocol for the detection of G. morbida and P. juglandis. To demonstrate the utility of the method for delineating TCD quarantine zones, we tested whether geographical occurrence of symptoms and signs of TCD was correlated with molecular evidence for the presence of the cryptic TCD organisms. A total of 1600 drill cores were taken from branch sections collected from three regions (n = 40 trees for each location): California-J. hindsii (heavy disease incidence); Tennessee-J. nigra (mild disease incidence); and outside the known TCD zone (Missouri-J. nigra, no record of the disease). California samples had the highest incidence of the TCD organisms (85%, 34/40). Tennessee had intermediate incidence (42.5%, 17/40), whereas neither organism was detected in samples from Missouri. The low cost molecular protocol developed here has a high degree of sensitivity and specificity, and it significantly reduces sample-processing time, making the protocol a powerful tool for rapid detection of TCD.
[Mh] Termos MeSH primário: Hypocreales/genética
Hypocreales/patogenicidade
Insetos Vetores/genética
Insetos Vetores/microbiologia
Juglans/microbiologia
Doenças das Plantas/microbiologia
Gorgulhos/genética
Gorgulhos/microbiologia
[Mh] Termos MeSH secundário: Animais
California
DNA Fúngico/genética
Técnicas Genéticas
Hypocreales/isolamento & purificação
Repetições de Microssatélites
Missouri
Especificidade da Espécie
Tennessee
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Fungal)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185087


  4 / 1158 MEDLINE  
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[PMID]:29208225
[Au] Autor:Tittiger C; Blomquist GJ
[Ad] Endereço:Department of Biochemistry and Molecular Biology, University of Nevada, Reno, Reno, NV 89557, USA. Electronic address: crt@unr.edu.
[Ti] Título:Pheromone biosynthesis in bark beetles.
[So] Source:Curr Opin Insect Sci;24:68-74, 2017 Dec.
[Is] ISSN:2214-5753
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Pine bark beetles rely on aggregation pheromones to coordinate mass attacks and thus reproduce in host trees. The structural similarity between many pheromone components and those of defensive tree resin led to early suggestions that pheromone components are metabolic derivatives of ingested precursors. This model has given way to our current understanding that most pheromone components are synthesized de novo. Their synthesis involves enzymes that modify products from endogenous metabolic pathways; some of these enzymes have been identified and characterized. Pheromone production is regulated in a complex way involving multiple signals, including JH III. This brief review summarizes progress in our understanding of this highly specialized metabolic process.
[Mh] Termos MeSH primário: Feromônios/biossíntese
Gorgulhos/metabolismo
[Mh] Termos MeSH secundário: Animais
Sesquiterpenos/metabolismo
Transdução de Sinais
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Pheromones); 0 (Sesquiterpenes); B74U6BJ6J5 (juvenile hormone III)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180119
[Lr] Data última revisão:
180119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171207
[St] Status:MEDLINE


  5 / 1158 MEDLINE  
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[PMID]:29261729
[Au] Autor:Almeida Garcia R; Lima Pepino Macedo L; Cabral do Nascimento D; Gillet FX; Moreira-Pinto CE; Faheem M; Moreschi Basso AM; Mattar Silva MC; Grossi-de-Sa MF
[Ad] Endereço:Brasilia Federal University (UnB), Brasília - CEP, Brasília, Federal District, Brazil.
[Ti] Título:Nucleases as a barrier to gene silencing in the cotton boll weevil, Anthonomus grandis.
[So] Source:PLoS One;12(12):e0189600, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:RNA interference (RNAi) approaches have been applied as a biotechnological tool for controlling plant insect pests via selective gene down regulation. However, the inefficiency of RNAi mechanism in insects is associated with several barriers, including dsRNA delivery and uptake by the cell, dsRNA interaction with the cellular membrane receptor and dsRNA exposure to insect gut nucleases during feeding. The cotton boll weevil (Anthonomus grandis) is a coleopteran in which RNAi-mediated gene silencing does not function efficiently through dsRNA feeding, and the factors involved in the mechanism remain unknown. Herein, we identified three nucleases in the cotton boll weevil transcriptome denoted AgraNuc1, AgraNuc2, and AgraNuc3, and the influences of these nucleases on the gene silencing of A. grandis chitin synthase II (AgraChSII) were evaluated through oral dsRNA feeding trials. A phylogenetic analysis showed that all three nucleases share high similarity with the DNA/RNA non-specific endonuclease family of other insects. These nucleases were found to be mainly expressed in the posterior midgut region of the insect. Two days after nuclease RNAi-mediated gene silencing, dsRNA degradation by the gut juice was substantially reduced. Notably, after nucleases gene silencing, the orally delivered dsRNA against the AgraChSII gene resulted in improved gene silencing efficiency when compared to the control (non-silenced nucleases). The data presented here demonstrates that A. grandis midgut nucleases are effectively one of the main barriers to dsRNA delivery and emphasize the need to develop novel RNAi delivery strategies focusing on protecting the dsRNA from gut nucleases and enhancing its oral delivery and uptake to crop insect pests.
[Mh] Termos MeSH primário: Endonucleases/metabolismo
Inativação Gênica
Controle de Insetos/métodos
Gorgulhos/genética
[Mh] Termos MeSH secundário: Animais
Interferência de RNA
Reação em Cadeia da Polimerase em Tempo Real
Transcriptoma
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
EC 3.1.- (Endonucleases)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180116
[Lr] Data última revisão:
180116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171221
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189600


  6 / 1158 MEDLINE  
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[PMID]:28459955
[Au] Autor:Seo M; Martini X; Rivera MJ; Stelinski LL
[Ad] Endereço:Entomology and Nematology Department, Citrus Research and Education Center, University of Florida, 700 Experiment Station Rd., Lake Alfred, FL 33850 (meejaseo@ufl.edu; monique.rivera@ufl.edu; stelinski@ufl.edu).
[Ti] Título:Flight Capacities and Diurnal Flight Patterns of the Ambrosia Beetles, Xyleborus glabratus and Monarthrum mali (Coleoptera: Curculionidae).
[So] Source:Environ Entomol;46(3):729-734, 2017 06 01.
[Is] ISSN:1938-2936
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We compared the flight activity of Xyleborus glabratus Eichhoff, vector and symbiont of the causal agent of laurel wilt disease (Raffaelea lauricola), with a native species Monarthrum mali (Fitch) using flight mills. Flight mills were operated either for 24 h or for three 3-h time intervals. During the 3-h interval experiment, the shortest time to flight initiation for X. glabratus occurred at 1600-1900 hours. The average flight time and total flying distance during 1600-2100 hours were also higher than those quantified during the other two recording times investigated. However, total flight duration and proportion of fliers was highest at 1000-1300 hours. We compared several flight parameters. About 64.0% of tested X. glabratus flew <20 m. During 24-h recording periods, M. mali flew longer distances than X. glabratus. Over 50.0% of M. mali flew over 100 m on the flight mill. Xyleborus glabratus flight activity was greatest between 1200 and 1800 hours, while M. mali flew most frequently between 1500 and 2100 hours. Monarthrum mali flew more than five times more frequently than X. glabratus, and their longest single flight distance (37.5 ± 12.5 m) and total flight distance (213.7 ± 85.5 m) were greater than those of X. glabratus. These data will be useful for development of species-specific control and monitoring protocols for these ambrosia beetles based on greater understanding of their flight capacities and associated invasion distance.
[Mh] Termos MeSH primário: Voo Animal
Gorgulhos/fisiologia
[Mh] Termos MeSH secundário: Animais
Ritmo Circadiano
Feminino
Controle de Insetos
Espécies Introduzidas
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171126
[Lr] Data última revisão:
171126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE
[do] DOI:10.1093/ee/nvx085


  7 / 1158 MEDLINE  
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[PMID]:29023481
[Au] Autor:Vendan SE; Manivannan S; Sunny AM; Murugesan R
[Ad] Endereço:Food Protectants and Infestation Control Department, CSIR-Central Food Technological Research Institute, Mysore, India.
[Ti] Título:Phytochemical residue profiles in rice grains fumigated with essential oils for the control of rice weevil.
[So] Source:PLoS One;12(10):e0186020, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In the present study, we investigated the fumigant potential of five edible essential oils (EOs) against Sitophilus oryzae and their phytochemical residues in treated grains. Among the tested EOs, peppermint oil proved significantly effective (P ≤ 0.05) on S.oryzae at 400 µl/L air concentration, inducing 83 and 100% mortalities in with-food and without-food conditions respectively over 72 h exposure. In addition, it was also observed that the binary mixtures of peppermint + lemon oil (1:1 ratio) produced an equivalent effect to that of peppermint oil alone treatments. The phytochemical residue analysis by GC-MS revealed the presence of six compounds upon 72 h exposure to EOs. Further, the analysis of physico-chemical properties of the compounds indicated a positive correlation between polar surface area (PSA) and its residual nature. The residue levels of eugenol were significantly elevated corresponding to its high PSA value (29) in clove and cinnamon oils. On the other hand, the compounds with zero PSA value imparted very less or no (D-Limonene, caryophyllene, pinene and terpinolene) residues in treated grains. With respect to the most active peppermint oil, L-menthone, menthyl acetate and eucalyptol residues were at 67, 41 and 23% levels respectively. The outcome of the present study indicate the peppermint oil as a potent fumigant against S. oryzae, and although the residues of phytochemicals in treated grains is higher; they belong to the generally recognised as safe (GRAS) status leaving no harmful effect.
[Mh] Termos MeSH primário: Inseticidas/farmacologia
Óleos Voláteis/farmacologia
Oryza/química
Resíduos de Praguicidas/análise
Gorgulhos/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Cinnamomum zeylanicum/química
Óleo de Cravo/química
Óleo de Cravo/farmacologia
Fumigação
Óleos Voláteis/química
Oryza/efeitos dos fármacos
Resíduos de Praguicidas/química
Óleos Vegetais/química
Óleos Vegetais/farmacologia
Sementes/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Clove Oil); 0 (Insecticides); 0 (Oils, Volatile); 0 (Pesticide Residues); 0 (Plant Oils); AKN3KSD11B (orange oil); AV092KU4JH (peppermint oil); I9GRO824LL (lemon oil)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171013
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0186020


  8 / 1158 MEDLINE  
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[PMID]:28981679
[Au] Autor:Wen XJ; Zhang GY; Ji YC; Wen JB
[Ad] Endereço:Beijing Forestry University, No. 35, Tsinghua East Rd., Haidian District, Beijing 100083, P.R. China.
[Ti] Título:Effect of Variable Temperature on the Development of Eucryptorrhynchus brandti (Coleoptera: Curculionidae).
[So] Source:Environ Entomol;46(5):1151-1155, 2017 10 01.
[Is] ISSN:1938-2936
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Temperature is one of the most important abiotic factors that influences the development and growth of insects. We investigated the effect of temperature on the development of the weevil Eucryptorrhynchus brandti (Harold). The developmental zeros and effective accumulated temperatures for different developmental stages of E. brandti were estimated under variable temperatures in the laboratory. We observed that the developmental zeros of eggs, larvae, and pupae were 15.27 °C, 20.86 °C, and 14.04 °C, respectively, and the effective accumulated temperatures were 81.46 °C·d, 293.76 °C·d, and 127.76 °C·d, respectively. The rate of development increased as the temperature increased within a particular temperature range, and temperatures from 30 °C to 31 °C were particularly suitable for E. brandti rearing. Based on these results, we may be able to predict the occurrence of E. brandti, providing a reference for physical control measures targeting adults to effectively reduce oviposition and minimize population expansion.
[Mh] Termos MeSH primário: Gorgulhos/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Animais
Estágios do Ciclo de Vida
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171126
[Lr] Data última revisão:
171126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171006
[St] Status:MEDLINE
[do] DOI:10.1093/ee/nvx123


  9 / 1158 MEDLINE  
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[PMID]:28973569
[Au] Autor:Audley J; Klingeman WE; Mayfield A; Myers S; Taylor A
[Ad] Endereço:Department of Forestry Wildlife and Fisheries, University of Tennessee, 2506 Jacob Drive, Knoxville, TN 37996.
[Ti] Título:Walnut Twig Beetle (Coleoptera: Curculionidae: Scolytinae) Colonization of Eastern Black Walnut Nursery Trees.
[So] Source:J Insect Sci;17(3), 2017 May 01.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Thousand cankers disease, caused by the invasive bark beetle Pityophthorus juglandis Blackman and an associated fungal pathogen Geosmithia morbida M.Kolarík, E. Freeland, C. Utley, N. Tisserat, currently threatens the health of eastern black walnut (Juglans nigra L.) in North America. Both the beetle and pathogen have expanded beyond their native range via transport of infested walnut wood. Geosmithia morbida can develop in seedlings following inoculation, but the ability of P. juglandis to colonize young, small diameter trees has not been investigated. This study assessed the beetle's colonization behavior on J. nigra nursery trees. Beetles were caged directly onto the stems of walnut seedlings from five nursery sources representing a range of basal stem diameter classes. Seedlings were also exposed to P. juglandis in a limited choice, field-based experiment comparing pheromone-baited and unbaited stems. When beetles were caged directly onto stems, they probed and attempted to colonize seedlings across the range of diameters and across sources tested, including stems as small as 0.5 cm in diameter. In the field experiment, beetles only attempted to colonize seedlings that were baited with a pheromone lure and appeared to prefer (though not statistically significant) the larger diameter trees. Despite several successful penetrations into the phloem, there was no evidence of successful progeny development within the young trees in either experiment. Further investigation is recommended to better elucidate the risk nursery stock poses as a pathway for thousand cankers disease causal organisms.
[Mh] Termos MeSH primário: Interações Hospedeiro-Parasita
Insetos Vetores/fisiologia
Juglans/parasitologia
Gorgulhos/fisiologia
[Mh] Termos MeSH secundário: Animais
Ascomicetos/fisiologia
Feminino
Herbivoria
Insetos Vetores/microbiologia
Juglans/microbiologia
Masculino
Doenças das Plantas
Gorgulhos/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171025
[Lr] Data última revisão:
171025
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171004
[St] Status:MEDLINE
[do] DOI:10.1093/jisesa/iex046


  10 / 1158 MEDLINE  
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[PMID]:28961978
[Au] Autor:Bleiker KP; Smith GD; Humble LM
[Ad] Endereço:Natural Resources Canada, Canadian Forest Service, 506 West Burnside Rd., Victoria, British Columbia, Canada V8Z 1M5.
[Ti] Título:Cold Tolerance of Mountain Pine Beetle (Coleoptera: Curculionidae) Eggs From the Historic and Expanded Ranges.
[So] Source:Environ Entomol;46(5):1165-1170, 2017 10 01.
[Is] ISSN:1938-2936
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Winter mortality is expected to be a key factor determining the ability of mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), to expand its range in Canada. We determined the mortality rate and supercooling points of eggs from the beetle's historic range in southern British Columbia as well as the recently expanded range in north-central Alberta and tested if eggs require an extended period of chilling to reach their maximum cold tolerance. We found no effect of population source or acclimation time on egg cold tolerance. Although 50% of eggs can survive brief exposure to -20.5 °C (LT50), storage at 0.3 °C and -7.5 °C for 59 d resulted in 50% and 100% mortality, respectively. Our results indicate that eggs suffer significant prefreeze mortality and are not well-adapted to overwintering: eggs are unlikely to survive winter throughout much of the beetle's range. Our results provide information that can be used to help model the climatic suitability of mountain pine beetle, including how changes in seasonality associated with new or changing climates may affect winter survival. In addition to lower lethal temperatures, it is critical that the duration of exposure to sublethal cold temperatures are considered in a comprehensive index of cold tolerance and incorporated into survival and population models.
[Mh] Termos MeSH primário: Aclimatação
Temperatura Baixa
Óvulo/fisiologia
Gorgulhos/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171126
[Lr] Data última revisão:
171126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170930
[St] Status:MEDLINE
[do] DOI:10.1093/ee/nvx127



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde