Cuticular Compounds
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Variation of cuticular chemical compounds in three species of Mischocyttarus (Hymenoptera: Vespidae) eusocial wasps
Abstract The social wasps have a remarkable system of organization in which chemical communication mediate different behavioral interactions. Among the compounds involved in this process, cuticular hydrocarbons are considered the main signals for nestmate recognition, caste differentiation, and fertility communication. The aims of this study were to describe
Rev. Bras. entomol.. Publicado em: 2017-09
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2. Chemical cuticular signature of leafcutter ant Atta sexdens (Hymenoptera, Formicidae) worker subcastes
ABSTRACT In leafcutter ants the division of labour is associated to worker size variation clustered in four subcastes. In this work we used Atta sexdens Forel (1908) as a model to test the hypothesis that each subcaste expresses its own chemical signature comprised of cuticular lipids. To assess it, we extracted epicuticular compounds by using nonpolar solve
Rev. Bras. entomol.. Publicado em: 2016-12
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3. Semioquímicos de moscas das frutas do gênero Anastrepha
Volatile compounds involved in the chemical communication of fruit flies have been studied for some years; however, their complete elucidation has not yet been reported. Tephritids, which belong to the Anastrepha genus, exhibit inter- and intraspecific changes regarding the chemical composition of their sex pheromones, as well as an evident relationship with
Quím. Nova. Publicado em: 2014-04
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4. Estudo comportamental, perfil dos hidrocarbonetos cuticulares e morfologia das glândulas mandibulares e intramandibulares de rainhas de Melipona scutellaris com diferentes idades / Behavioural study, cuticular hydrocarbon profiles and morphology of the mandibular and intramandibular glands of the queens of Melipona scutellaris with differents ages
The virgin queens of Melipona scutellaris, as others species of the genus Melipona, are attacked and killed for workers. As exist few information about recognition of this virgin queens, this work had as purpose to test the hypothesis that the virgin queens of M. scutellaris are identified by workers for the use of chemical signal. For this, the behaviour, t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/11/2010
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5. Anatomia e perfil químico de duas espécies do gênero Smilax L. (Smilacaceae) / Anatomy and chemical profile of two species of the Smilax L. (Smilacaceae) genus
As espécies do gênero Smilax L., conhecidas pelos nomes vulgares japecanga, cipó japecanga, salsaparrilha e aputá, são amplamente utilizadas como plantas medicinais, para os mais variados tipos de tratamentos. O presente estudo apresenta a análise dos caracteres anatômicos e do perfil químico de indivíduos da espécie Smilax syphilitica Humboldt &Bo
Publicado em: 2010
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6. Olfactory stimuli involved in sexual behavior and host selection of Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae) / Estímulos olfativos envolvidos no comportamento sexual e na seleção hospedeira de Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae)
Neste trabalho foi caracterizado o comportamento de Diabrotica speciosa, quando submetida a estímulos químicos de atração sexual ou de localização hospedeira. As atividades desenvolvidas foram: (i) Determinação da idade, horário, duração, número de cópulas, sexo responsável pela atração sexual e sequência de atividades envolvidas no comporta
Publicado em: 2010
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7. O papel ecológico da neblina e a absorção foliar de água em três espécies lenhosas de Matas Nebulares, SP - Brasil / The ecological role of fog and foliar water uptake in three woody species from Southeastern Brazilian Cloud Forest
Fog deposition is an important water source in several terrestrial ecosystems. Fog water intercepted by the plants can run off to the soil or be absorbed by the leaves. However, very little is known about the ecological role of fog and the mechanisms and structures involved in foliar water uptake by woody species in tropical environments. In this context, we
Publicado em: 2010
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8. Anatomia foliar de leguminosas arboreas de cerrado com enfase nas estruturas secretoras / Leaf anatomy of cerrado Leguminosae trees with emphasis on secretory sctructures
Foliar anatomy (leaflet lamina, petiolule and rachis) and secretory structures of four papilionoid tree species occurring in the cerrado were studied. The presence of anatomical characters common to these and other species occurring in the same formation was also investigated. Secretory epidermis and mesophyll idioblasts were found in Acosmium dasycarpum, A.
Publicado em: 2006
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9. Defesas quimicas em larvas de Plagiometriona flavescens e Stolas aerolota (Coleoptera: Chrysomelidae: Cassidinae)
Chrysomelidae beetles have a great diversity of natural enemies .and also present many different defensive strategies. In this work we have studied two Cassidinae species (a Chrysomelidae .subfamily), P/agiometriona flavescens and StoIas areolata, with the main objective to understand if these species can protect themselves against predators using their feca
Publicado em: 2004
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10. Penetration of Organic Compounds Through Isolated Cuticular Membranes with Special Reference to C14 Urea 123
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11. Co-Permeability of 3H-Labeled Water and 14C-Labeled Organic Acids across Isolated Plant Cuticles1 : Investigating Cuticular Paths of Diffusion and Predicting Cuticular Transpiration
Penetration of 3H-labeled water (3H2O) and the 14C-labeled organic acids benzoic acid ([14C]BA), salicylic acid ([14C]SA), and 2,4-dichlorophenoxyacetic acid ([14C]2,4-D) were measured simultaneously in isolated cuticular membranes of Prunus laurocerasus L., Ginkgo biloba L., and Juglans regia L. For each of the three pairs of compounds (3H2O/[14C]BA, 3H2O/[
American Society of Plant Physiologists.
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12. Recognition of social parasites as nest-mates: adoption of colony-specific host cuticular odours by the paper wasp parasite Polistes sulcifer.
Colonies of the polistine wasp Polistes dominulus are parasitized by the permanent worker-less social parasite Polistes sulcifer. After usurpation of the host colony, parasite females are characterized by a change in the relative proportions of their cuticular hydrocarbons to match those of the host species. In this paper we present evidence from field data