Scents
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Volatile Constituents of Floral Scents from Encyclia cordigera (Kunth) Dressler and E. randii (Barb. Rodr.) Porto & Brade (Orchidaceae)
Encyclia cordigera is native from Central America tropical region, and Encyclia randii occurs at Brazilian Amazon environment domains. Floral concentrates from both Encyclia species were extracted, analyzed by gas chromatography-mass spectrometry, and identified compounds belong to terpenoids, phenylpropanoids, and fatty acid derivatives classes. Primary con
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Distant populations of a Xanthosoma (Araceae) species have different floral scents but the same cyclocephaline beetle pollinators
ABSTRACT We report on the reproductive biology, pollinators, and thermogenesis of the widely distributed Araceae species, Xanthosoma striatipes. We analyzed the floral scent in one population and compared it to a previous study. Xanthosoma striatipes was studied at three sites in Brazil, São Paulo, Minas Gerais and Maranhão. The results showed constancy of
Acta Bot. Bras.. Publicado em: 2020-09
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3. Beta-ionone attracts Euglossa mandibularis(Hymenoptera, Apidae) males in western Paraná forests
ABSTRACTMales of Euglossa mandibularis were consistently captured in scent traps baited with β-ionone in areas of Mixed Ombrophylous Forests or transition between this latter physiognomy and Montane Semideciduous Forest at Parque Nacional do Iguaçu, Paraná state, Brazil. Geographic records for the species and sampling effort (including or not β-ionone am
Rev. Bras. entomol.. Publicado em: 2015-09
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4. Interações entre Protodiscelis (Colletidae, Neopasiphaeinae) e plantas aquáticas e a importância de odores florais na atração de polinizadores. / Interactions between bees of Protodiscelis (Colletidae, Neopasiphaeinae) and aquatic plants, and the importance of odors to locating flowers.
Abelhas são os principais polinizadores das plantas com flores. Plantas são sésseis e a reprodução sexuada cruzada somente ocorre através de vetores de pólen. Sendo assim, flores zoofílicas provêm pistas para o encontro interespecífico, são polinizadas e fornecem recursos florais aos polinizadores. O principal recurso coletado por abelhas herbívo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/06/2012
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5. Comunidade de abelhas Euglossina (Hymenoptera: Apidae) em fragmentos de mata atlÃntica e mata litorÃnea no estado do Cearà / Community of euglossine bees (Hymenoptera: Apidae) in fragments of Atlantic forest and coastal forest in the state of CearÃ
The research was conducted in the municipalities of Guaramiranga, Mulungu and Pacoti from the highlands of the BaturitÃâs Massif and Fortaleza located in coastal region, all located in the state of CearÃ. The data collections were made monthly from 8:00 to 16:00 hours on four consecutive days during the period from November 2009 to November 2010 with the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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6. Fauna and stratification of male orchid bees (Hymenoptera: Apidae) and their preference for odor baits in a forest fragment
This is a study of the population fluctuation of euglossine species, as well as their preferences for scent baits (cineole, eugenol, vanillin and methyl salicylate) in two forest strata (canopy and understory) at the Reserva Florestal do Azulão, a forest fragment located in the municipality of Dourados, MS, Brazil (22°12'S, 54°55'W). We collected a total
Neotropical Entomology. Publicado em: 2011-12
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7. A genomic approach to characterization of the Citrus terpene synthase gene family
Terpenes are a very large and structurally diverse group of secondary metabolites which are abundant in many essential oils, resins and floral scents. Additionally, some terpenes have roles as phytoalexins in plant-pathogen relationships, allelopathic inhibitors in plant-plant interactions, or as airborne molecules of plant-herbivore multitrophic signaling.
Genetics and Molecular Biology. Publicado em: 2007
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8. Entre o passado e o presente: a condiÃÃo humana de um grupo de idosos, ex-presos polÃticos do golpe militar de 1964, na perspectiva de Hannah Arendt
In the preface of her book Between the past and the future, Arendt refers to the poet Renà Char, who in the middle of the fight of the Resistance in Europe, predicting what could happen once the battle was over, wrote: "if I survive, I know that it will be necessary to break with the scents of these essential years, to silently reject my treasure". This "tr
Publicado em: 2006
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9. Euglossine bees (Hymenoptera, Apidae) in a remnant of Atlantic Forest in Paraná State, Brazil
Species composition, relative abundance, seasonal changes in the species abundance and scent association of male Euglossini collected in a semi-deciduous forest fragment in the north of the State of Paraná, southern Brazil, were recorded. Euglossine males were collected twice a month, for twelve months, from 8:00 am to 3:00 pm. The scents eucalyptol, eugeno
Iheringia. Série Zoologia. Publicado em: 2004-06
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10. Comunidade de Euglossini (Hymenoptera, Apidae) das dunas litorâneas do Abaeté, Salvador, Bahia, Brasil
Community of Euglossini (Hymenoptera, Apidae) from the coastal sand dunes of Abaeté, Salvador, Bahia, Brazil. The Euglossini community structure was analyzed by attracting males with the scents eucalyptol, eugenol, vanillin, benzyl benzoate and methyl salicylate, and by netting bees on flowers. The samplings took place three times a month along one year fro
Revista Brasileira de Entomologia. Publicado em: 2002
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11. Chemosensory recognition of mouse major histocompatibility types by another species.
Mice can recognize one another by individually characteristic body scents that reflect their genetic constitution at the extremely polymorphic major histocompatibility complex (MHC) of genes on chromosome 17. Reproductive behavioral manifestations of this sensory communication system include MHC-related mating preferences and neuroendocrine responses that af
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12. Female behaviour plays a critical role in controlling murine pregnancy block
Exposure of recently mated female rodents to unfamiliar male scents during daily prolactin surges results in pregnancy failure (the ‘Bruce effect’). Control of nasal contact with male scents during these narrow windows of sensitivity could allow females to maintain or terminate pregnancy, but female behavioural changes specifically during this critical p
The Royal Society.