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[PMID]:29377955
[Au] Autor:Gedling CR; Smith CM; LeMoine CMR; Cassone BJ
[Ad] Endereço:Department of Plant Pathology, The Ohio State University, Wooster, OH, United States of America.
[Ti] Título:The Mexican bean beetle (Epilachna varivestis) regurgitome and insights into beetle-borne virus specificity.
[So] Source:PLoS One;13(1):e0192003, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:For nearly 400 million years, insects and plants have been embattled in an evolutionary arms race. Insects have developed diverse feeding strategies and behaviors in an effort to circumvent and overcome an extensive collection of plant defense tactics. Sap-sucking insects often inject saliva into hosts plants, which contains a suite of effector proteins and even microbial communities that can alter the plant's defenses. Lacking salivary glands, leaf-feeding beetles represent an interesting group of phytophagous insects. Feeding beetles regurgitate onto leaf surfaces and it is thought that these oral secretions influence insect-plant interactions and even play a role in virus-vector specificity. Since the molecular and biological makeup of the regurgitant is virtually unknown, we carried out RNA sequencing and 16S rDNA analysis on a major soybean pest, Epilachna varivestis, to generate the first ever beetle "regurgitome" and characterize its microbiome. Interestingly, the regurgitant is comprised of a rich molecular assortment of genes encoding putative extracellular proteins involved in digestion, molting, immune defense, and detoxification. By carrying out plant inoculation assays, we reinforced the fundamental role of the regurgitant in beetle-borne virus specificity. Ultimately, these studies begin to characterize the importance of regurgitant in virus transmission and beetle-plant interactions.
[Mh] Termos MeSH primário: Coleópteros/metabolismo
[Mh] Termos MeSH secundário: Animais
Coleópteros/genética
Coleópteros/fisiologia
Coleópteros/virologia
Genes de Insetos
Transcriptoma
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0192003


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[PMID]:29029382
[Au] Autor:Barbosa PRR; Oliveira MD; Barros EM; Michaud JP; Torres JB
[Ad] Endereço:Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE 52171-900, Brazil. Electronic address: pagro05@hotmail.com.
[Ti] Título:Differential impacts of six insecticides on a mealybug and its coccinellid predator.
[So] Source:Ecotoxicol Environ Saf;147:963-971, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Broad-spectrum insecticides may disrupt biological control and cause pest resurgence due to their negative impacts on natural enemies. The preservation of sustainable pest control in agroecosystems requires parallel assessments of insecticide toxicity to target pests and their key natural enemies. In the present study, the leaf dipping method was used to evaluate the relative toxicity of six insecticides to the striped mealybug, Ferrisia dasylirii (Cockerell) (Hemiptera: Pseudococcidae) and its predator, Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae). Three neurotoxic insecticides, lambda-cyhalothrin, methidathion and thiamethoxam, caused complete mortality of both pest and predator when applied at their highest field rates. In contrast, lufenuron, pymetrozine and pyriproxyfen caused moderate mortality of third-instar mealybug nymphs, and exhibited low or no toxicity to either larvae or adults of the lady beetle. At field rates, lufenuron and pymetrozine had negligible effects on prey consumption, development or reproduction of T. notata, but adults failed to emerge from pupae when fourth instar larvae were exposed to pyriproxyfen. In addition, pyriproxyfen caused temporary sterility; T. notata females laid non-viable eggs for three days after exposure, but recovered egg fertility thereafter. Our results indicate that the three neurotoxic insecticides can potentially control F. dasylirii, but are hazardous to its natural predator. In contrast, lufenuron and pymetrozine appear compatible with T. notata, although they appear less effective against the mealybug. Although the acute toxicity of pyriproxyfen to T. notata was low, some pupal mortality and reduced egg fertility suggest that this material could impede the predator's numerical response to mealybug populations.
[Mh] Termos MeSH primário: Coleópteros/efeitos dos fármacos
Poluentes Ambientais/toxicidade
Hemípteros/efeitos dos fármacos
Inseticidas/toxicidade
Controle Biológico de Vetores
[Mh] Termos MeSH secundário: Animais
Brasil
Coleópteros/crescimento & desenvolvimento
Feminino
Gossypium/parasitologia
Hemípteros/crescimento & desenvolvimento
Inseticidas/farmacologia
Larva/efeitos dos fármacos
Larva/crescimento & desenvolvimento
Ninfa/efeitos dos fármacos
Ninfa/crescimento & desenvolvimento
Comportamento Predatório/efeitos dos fármacos
Pupa/efeitos dos fármacos
Pupa/crescimento & desenvolvimento
Reprodução/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Environmental Pollutants); 0 (Insecticides)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171015
[St] Status:MEDLINE


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[PMID]:29335414
[Au] Autor:Zhang SQ; Che LH; Li Y; Dan Liang; Pang H; Slipinski A; Zhang P
[Ad] Endereço:State Key Laboratory of Biocontrol, College of Ecology and Evolution, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
[Ti] Título:Evolutionary history of Coleoptera revealed by extensive sampling of genes and species.
[So] Source:Nat Commun;9(1):205, 2018 01 15.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Beetles (Coleoptera) are the most diverse and species-rich group of insects, and a robust, time-calibrated phylogeny is fundamental to understanding macroevolutionary processes that underlie their diversity. Here we infer the phylogeny and divergence times of all major lineages of Coleoptera by analyzing 95 protein-coding genes in 373 beetle species, including ~67% of the currently recognized families. The subordinal relationships are strongly supported as Polyphaga (Adephaga (Archostemata, Myxophaga)). The series and superfamilies of Polyphaga are mostly monophyletic. The species-poor Nosodendridae is robustly recovered in a novel position sister to Staphyliniformia, Bostrichiformia, and Cucujiformia. Our divergence time analyses suggest that the crown group of extant beetles occurred ~297 million years ago (Mya) and that ~64% of families originated in the Cretaceous. Most of the herbivorous families experienced a significant increase in diversification rate during the Cretaceous, thus suggesting that the rise of angiosperms in the Cretaceous may have been an 'evolutionary impetus' driving the hyperdiversity of herbivorous beetles.
[Mh] Termos MeSH primário: Coleópteros/genética
Evolução Molecular
Variação Genética
Proteínas de Insetos/genética
[Mh] Termos MeSH secundário: Animais
Coleópteros/classificação
Proteínas de Insetos/classificação
Filogenia
Especificidade da Espécie
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Insect Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180117
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02644-4


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[PMID]:29351549
[Au] Autor:García-Ruiz E; Loureiro Í; Farinós GP; Gómez P; Gutiérrez E; Sánchez FJ; Escorial MC; Ortego F; Chueca MC; Castañera P
[Ad] Endereço:Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Protección Vegetal, Laboratorio de Malherbología, Madrid, Spain.
[Ti] Título:Weeds and ground-dwelling predators' response to two different weed management systems in glyphosate-tolerant cotton: A farm-scale study.
[So] Source:PLoS One;13(1):e0191408, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The use of glyphosate, as a post-emergence broad-spectrum herbicide in genetically modified glyphosate-tolerant (GT) cotton, supposes a big change in weed management programs with respect to a conventional regime. Thus, alterations in arable flora and arthropod fauna must be considered when evaluating their potential impacts. A 3-year farm-scale study was conducted in a 2-ha GT cotton crop, in southern Spain, to compare the effects of conventional and glyphosate herbicide regimes on weed abundance and diversity and their consequences for ground-dwelling predators. Surveys reveal that weed density was relatively low within all treatments with a few dominant species, with significantly higher weed densities and modifications of the floristic composition in glyphosate-treated plots that led to an increase in the abundance of Portulaca oleracea and to a reduction in plant diversity. The activity-density of the main predatory arthropod taxa (spiders, ground beetles, rove beetles and earwigs) varied among years, but no significant differences were obtained between conventional and glyphosate herbicide regimes. However, significant differences between treatments were obtained for ground beetles species richness and diversity, being higher under the glyphosate herbicide regime, and a positive correlation with weed density could be established for both parameters. The implications of these findings to weed control in GT cotton are discussed.
[Mh] Termos MeSH primário: Glicina/análogos & derivados
Gossypium/efeitos dos fármacos
Herbicidas/farmacologia
Plantas Daninhas/efeitos dos fármacos
Controle de Plantas Daninhas/métodos
[Mh] Termos MeSH secundário: Animais
Artrópodes/efeitos dos fármacos
Biodiversidade
Coleópteros/efeitos dos fármacos
Produtos Agrícolas/efeitos dos fármacos
Produtos Agrícolas/genética
Produtos Agrícolas/crescimento & desenvolvimento
Ecossistema
Cadeia Alimentar
Glicina/farmacologia
Gossypium/genética
Gossypium/crescimento & desenvolvimento
Resistência a Herbicidas/genética
Insetos/efeitos dos fármacos
Plantas Geneticamente Modificadas
Espanha
Aranhas/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Herbicides); 4632WW1X5A (glyphosate); TE7660XO1C (Glycine)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180120
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191408


  5 / 11093 MEDLINE  
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[PMID]:29220518
[Au] Autor:Lin T; You Y; Zeng ZH; Lin S; Chen YX; Cai HJ; Zhao JW; Wei H
[Ad] Endereço:Institute of Plant Protection, Fujian Academy of Agriculture Sciences, China.
[Ti] Título:Temperature-Dependent Development of Oligota flavicornis (Coleoptera: Staphylinidae) Preying on Tetranychus cinnabarinus (Acarina: Tetranychidae).
[So] Source:J Econ Entomol;110(6):2334-2341, 2017 12 05.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The effect of nine constant temperatures on developmental time of Oligota flavicornis (Boisduval and Lacordaire) preying on Tetranychus cinnabarinus (Boisduval) (Acari: Tetranychidae) eggs was determined under laboratory conditions of 75 ± 5% RH and a 16:8 (L:D) h photoperiod. O. flavicornis survival rates were highest between 18 and 30°C, although O. flavicornis eggs developed successfully to adults at 12-32°C, and the developmental durations to adult at the seven temperatures (12, 15, 18, 20, 25, 30, and 32°C) were 114.41, 51.66, 33.45, 23.21, 13.43, 11.54, and 17.18 d, respectively. Two linear and seven nonlinear models (Logan-6 and Logan-10, Taylor, Lactin-1 and Lactin-2, and Brière-1 and Brière-2) were fit to the developmental rates of the immature predatory stages to estimate the thermal constant (K) and critical temperatures. The lower temperature threshold (T0) and K for the immature stages using the common linear model were 9.96°C and 225.73 degree-days and Ikemoto-Takai linear model were 11.01°C and 167.14 degree-days, respectively. The upper temperature threshold values estimated by the Logan-6 and Lactin-1 models were both 34.86°C. The T0 values estimated by the Brière-1 and Brière-2 models were 10.67 and 9.32°C for all immature stages, respectively, and the estimated optimal temperature according to the Brière-2 model was 29.59°C. Therefore, the two linear models and Brière-2 model estimates approximated the actual relationship between the temperature and developmental rate of immature O. flavicornis.
[Mh] Termos MeSH primário: Coleópteros/crescimento & desenvolvimento
Controle Biológico de Vetores
Comportamento Predatório
Tetranychidae
[Mh] Termos MeSH secundário: Animais
Coleópteros/fisiologia
Larva/crescimento & desenvolvimento
Larva/fisiologia
Modelos Lineares
Longevidade
Modelos Biológicos
Dinâmica não Linear
Pupa/crescimento & desenvolvimento
Pupa/fisiologia
Temperatura Ambiente
Tetranychidae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171209
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox259


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[PMID]:29220516
[Au] Autor:Depalo L; Lanzoni A; Masetti A; Pasqualini E; Burgio G
[Ad] Endereço:Dipartimento di Scienze Agrarie-Entomologia, Alma Mater Studiorum-Università di Bologna, Italy.
[Ti] Título:Lethal and Sub-lethal Effects of Four Insecticides on the Aphidophagous Coccinellid Adalia bipunctata (Coleoptera: Coccinellidae).
[So] Source:J Econ Entomol;110(6):2662-2671, 2017 12 05.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Conventional insecticide assays, which measure the effects of insecticide exposure on short-term mortality, overlook important traits, including persistence of toxicity or sub-lethal effects. Therefore, such approaches are especially inadequate for prediction of the overall impact of insecticides on beneficial arthropods. In this study, the side effects of four modern insecticides (chlorantraniliprole, emamectin benzoate, spinosad, and spirotetramat) on Adalia bipunctata (L.) (Coleoptera: Coccinellidae) were evaluated under laboratory conditions by exposition on treated potted plants. In addition to investigation of acute toxicity and persistence of harmful activity in both larvae and adults of A. bipunctata, demographic parameters were evaluated, to provide a comprehensive picture of the nontarget effects of these products. Field doses of the four insecticides caused detrimental effects to A. bipunctata; but in different ways. Overall, spinosad showed the best toxicological profile among the products tested. Emamectin benzoate could be considered a low-risk insecticide, but had high persistence. Chlorantraniliprole exhibited lethal effects on early instar larvae and adults, along with a long-lasting activity, instead spirotetramat showed a low impact on larval and adult mortality and can be considered a short-lived insecticide. However, demographic analysis demonstrated that chlorantraniliprole and spirotetramat caused sub-lethal effects. Our findings highlight that sole assessment of mortality can lead to underestimation of the full impact of pesticides on nontarget insects. Demographic analysis was demonstrated to be a sensitive method for detection of the sub-lethal effects of insecticides on A. bipunctata, and this approach should be considered for evaluation of insecticide selectivity.
[Mh] Termos MeSH primário: Coleópteros/efeitos dos fármacos
Inseticidas/toxicidade
[Mh] Termos MeSH secundário: Animais
Compostos Aza/toxicidade
Coleópteros/crescimento & desenvolvimento
Combinação de Medicamentos
Ivermectina/análogos & derivados
Ivermectina/toxicidade
Larva/efeitos dos fármacos
Larva/crescimento & desenvolvimento
Macrolídeos/toxicidade
Compostos de Espiro/toxicidade
ortoaminobenzoatos/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Aza Compounds); 0 (Drug Combinations); 0 (Insecticides); 0 (Macrolides); 0 (Spiro Compounds); 0 (ortho-Aminobenzoates); 4G7KR034OX (spirotetramat); 622AK9DH9G (chlorantranilipole); 70288-86-7 (Ivermectin); HVM3G4A01W (emamectin benzoate); XPA88EAP6V (spinosad)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171209
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox243


  7 / 11093 MEDLINE  
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[PMID]:29317625
[Au] Autor:Hall MP; Woodroofe CC; Wood MG; Que I; Van't Root M; Ridwan Y; Shi C; Kirkland TA; Encell LP; Wood KV; Löwik C; Mezzanotte L
[Ad] Endereço:Promega Corporation, Madison, WI, 53711, USA.
[Ti] Título:Click beetle luciferase mutant and near infrared naphthyl-luciferins for improved bioluminescence imaging.
[So] Source:Nat Commun;9(1):132, 2018 01 09.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The sensitivity of bioluminescence imaging in animals is primarily dependent on the amount of photons emitted by the luciferase enzyme at wavelengths greater than 620 nm where tissue penetration is high. This area of work has been dominated by firefly luciferase and its substrate, D-luciferin, due to the system's peak emission (~ 600 nm), high signal to noise ratio, and generally favorable biodistribution of D-luciferin in mice. Here we report on the development of a codon optimized mutant of click beetle red luciferase that produces substantially more light output than firefly luciferase when the two enzymes are compared in transplanted cells within the skin of black fur mice or in deep brain. The mutant enzyme utilizes two new naphthyl-luciferin substrates to produce near infrared emission (730 nm and 743 nm). The stable luminescence signal and near infrared emission enable unprecedented sensitivity and accuracy for performing deep tissue multispectral tomography in mice.
[Mh] Termos MeSH primário: Benzotiazóis/metabolismo
Coleópteros/enzimologia
Proteínas de Insetos/metabolismo
Luciferases/metabolismo
[Mh] Termos MeSH secundário: Animais
Benzotiazóis/química
Células HEK293
Seres Humanos
Proteínas de Insetos/genética
Luciferases/genética
Luminescência
Medições Luminescentes/métodos
Células MCF-7
Camundongos Endogâmicos C57BL
Camundongos Nus
Microscopia de Fluorescência
Mutação
Espectroscopia de Luz Próxima ao Infravermelho
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Benzothiazoles); 0 (D-luciferin); 0 (Insect Proteins); EC 1.13.12.- (Luciferases)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180111
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02542-9


  8 / 11093 MEDLINE  
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[PMID]:28455220
[Au] Autor:Lee HT; Kim HJ; Kim CS; Gomi K; Taya M; Nomura S; Ahn SH
[Ad] Endereço:Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Republic of Korea.
[Ti] Título:Site-specific characterization of beetle horn shell with micromechanical bending test in focused ion beam system.
[So] Source:Acta Biomater;57:395-403, 2017 Jul 15.
[Is] ISSN:1878-7568
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biological materials are the result of years of evolution and possess a number of efficient features and structures. Researchers have investigated the possibility of designing biomedical structures that take advantage of these structural features. Insect shells, such as beetle shells, are among the most promising types of biological material for biomimetic development. However, due to their intricate geometries and small sizes, it is challenging to measure the mechanical properties of these microscale structures. In this study, we developed an in-situ testing platform for site-specific experiments in a focused ion beam (FIB) system. Multi-axis nano-manipulators and a micro-force sensor were utilized in the testing platform to allow better results in the sample preparation and data acquisition. The entire test protocol, consisting of locating sample, ion beam milling and micro-mechanical bending tests, can be carried out without sample transfer or reattachment. We used our newly devised test platform to evaluate the micromechanical properties and structural features of each separated layer of the beetle horn shell. The Young's modulus of both the exocuticle and endocuticle layers was measured. We carried out a bending test to characterize the layers mechanically. The exocuticle layer bent in a brick-like manner, while the endocuticle layer exhibited a crack blunting effect. STATEMENT OF SIGNIFICANCE: This paper proposed an in-situ manipulation/test method in focused ion beam for characterizing micromechanical properties of beetle horn shell. The challenge in precise and accurate fabrication for the samples with complex geometry was overcome by using nano-manipulators having multi-degree of freedom and a micro-gripper. With the aid of this specially designed test platform, bending tests were carried out on cantilever-shaped samples prepared by focused ion beam milling. Structural differences between exocuticle and endocuticle layers of beetle horn shell were explored and the results provided insight into the structural advantages of each biocomposite structure.
[Mh] Termos MeSH primário: Estruturas Animais/química
Coleópteros/química
Módulo de Elasticidade
Estresse Mecânico
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE


  9 / 11093 MEDLINE  
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[PMID]:29401571
[Au] Autor:Kryukov VY; Rotskaya UN; Yaroslavtseva ON; Elisaphenko EA; Duisembekov BA; Glupov VV
[Ti] Título:[Phenotypic and genetic changes of entomopathogenic ascomycete Beauveria Bassiana under passaging through various hosts].
[So] Source:Parazitologiia;51(1):3-14, 2017 Jan-Feb.
[Is] ISSN:0031-1847
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Phenotypic and genetic estimations of entomopathogenic ascomycete B.bassiana (strain Sar-31) after 6-passaging through four hosts were shown. Increasing of virulence, changes in morpho-cultural characteristics and variations in Inter Simple Sequence Repeats (ISSR) assay between initial and reisolated cultures were registered. Six passages of entomopathogenic ascomycete Beauveria bassiana (strain Sar-31) through four hosts (Galleria mellonella, Tenebrio molitor, Leptinotarsa decemlineata, Locusta migratoria) and following estimation of phenotypic and genetic differences of the initial strain and reisolated cultures were conducted. The passaging of strain through certain host led to increasing of virulence for both this host and other test-insects. Unidirectional changes of morpho-cultural characteristics: colonies pigmentation and relief strengthening, increasing of conidia production and lipolytic activity were registered in all passaged cultures. Genetic analysis with 6 ISSR markers revealed variations between initial and reisolated cultures in 3 markers. Taken together, the results of this study help us understand potential ways of fungi strains changes during epizootic process and possibilities of ISSR assay applying for investigation of pathogen transmission.
[Mh] Termos MeSH primário: Beauveria/genética
Beauveria/patogenicidade
Proteínas Fúngicas/genética
Especificidade de Hospedeiro
Esporos Fúngicos/genética
Esporos Fúngicos/patogenicidade
[Mh] Termos MeSH secundário: Animais
Beauveria/enzimologia
Beauveria/crescimento & desenvolvimento
Coleópteros/microbiologia
Proteínas Fúngicas/metabolismo
Marcadores Genéticos
Genótipo
Lipólise
Locusta migratoria/microbiologia
Repetições de Microssatélites
Mariposas/microbiologia
Fenótipo
Pigmentação/genética
Inoculações Seriadas
Esporos Fúngicos/enzimologia
Esporos Fúngicos/crescimento & desenvolvimento
Tenebrio/microbiologia
Virulência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fungal Proteins); 0 (Genetic Markers)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180206
[St] Status:MEDLINE


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[PMID]:29376212
[Au] Autor:Bustos-Segura C; Foley WJ
[Ad] Endereço:Division of Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia. bustossc@gmail.com.
[Ti] Título:Foliar Terpene Chemotypes and Herbivory Determine Variation in Plant Volatile Emissions.
[So] Source:J Chem Ecol;44(1):51-61, 2018 Jan.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Plants that synthesize and store terpenes in specialized cells accumulate large concentrations of these compounds while avoiding autotoxicity. Stored terpenes may influence the quantity and profile of volatile compounds that are emitted into the environment and the subsequent role of those volatiles in mediating the activity of herbivores. The Australian medicinal tea tree, Melaleuca alternifolia, occurs as several distinct terpene chemotypes. We studied the profile of its terpene emissions to understand how variations in stored foliar terpenes influenced emissions, both constitutive and when damaged either by herbivores or mechanically. We found that foliar chemistry influenced differences in the composition of terpene emissions, but those emissions were minimal in intact plants. When plants were damaged by herbivores or mechanically, the emissions were greatly increased and the composition corresponded to the constitutive terpenes and the volatility of each compound, suggesting the main origin of emissions is the stored terpenes and not de novo biosynthesized volatiles. However, herbivores modified the composition of the volatile emissions in only one chemotype, probably due to the oxidative metabolism of 1,8-cineole by the beetles. We also tested whether the foliar terpene blend acted as an attractant for the specialized leaf beetles Paropsisterna tigrina and Faex sp. and a parasitoid fly, Anagonia zentae. None of these species responded to extracts of young leaves in an olfactometer, so we found no evidence that these species use plant odor cues for host location in laboratory conditions.
[Mh] Termos MeSH primário: Coleópteros/fisiologia
Plantas/química
Terpenos/análise
Compostos Orgânicos Voláteis/química
[Mh] Termos MeSH secundário: Animais
Coleópteros/efeitos dos fármacos
Cicloexanóis/análise
Cicloexanóis/farmacologia
Cromatografia Gasosa-Espectrometria de Massas
Herbivoria/efeitos dos fármacos
Interações Hospedeiro-Parasita/efeitos dos fármacos
Monoterpenos/análise
Monoterpenos/farmacologia
Folhas de Planta/química
Folhas de Planta/metabolismo
Folhas de Planta/parasitologia
Plantas/metabolismo
Plantas/parasitologia
Análise de Componente Principal
Terpenos/metabolismo
Terpenos/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cyclohexanols); 0 (Monoterpenes); 0 (Terpenes); 0 (Volatile Organic Compounds); RV6J6604TK (eucalyptol)
[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:180130
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-017-0919-8



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