Chemical Camouflage
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Brazilian Bioluminescent Beetles: Reflections on Catching Glimpses of Light in the Atlantic Forest and Cerrado
ABSTRACT Bioluminescence - visible and cold light emission by living organisms - is a worldwide phenomenon, reported in terrestrial and marine environments since ancient times. Light emission from microorganisms, fungi, plants and animals may have arisen as an evolutionary response against oxygen toxicity and was appropriated for sexual attraction, predation
An. Acad. Bras. Ciênc.. Publicado em: 2018
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2. (E)-4-Oxo-2-hexenal Dimers in the Scent Glands of the Bark Bug Phloea subquadrata (Heteroptera, Phloeidae)
Bark bugs belonging to the family Phloeidae are known for their camouflage on tree trunks. The nymphs store in dorsal abdominal glands defensive secretions with a pungent odor mainly constituted of (E)-2-hexenal, (E)-2-octenal, and (E)-4-oxo-2-hexenal. The metathoracic glands of adults (male and female) store (E)-2-hexen-1-ol and (E)-2-hexenyl acetate, which
J. Braz. Chem. Soc.. Publicado em: 2016-08
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3. Interação entre formigas, o membracideo Guayaquila xiphias (Hemiptera) e sua planta hospdeira Schefflera vinosa (Araliaceae) : o papel dos lipidios cuticulares na camuflagem quimica dos membracideos / Ants and Guayaquila xiphias (Hemiptera: Membracidae) on Schefflera vinosa (Araliaceae) : the role of cuticular lipids in the chemical camouflage of treehoppers
A grande abundância de formigas é um dos fatores que torna esses artrópodes os maiores predadores de insetos herbívoros, sendo que sua intensa atividade de forrageamento na vegetação resulta em um número expressivo de associações com plantas e outros artrópodes. O sistema entre formigas, Guayaquila xiphias (Hemiptera: Membracidae) e sua planta hosp
Publicado em: 2008
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4. 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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5. Chemical camouflage of antigenic determinants: Stealth erythrocytes
In a number of clinical circumstances it would be desirable to artificially conceal cellular antigenic determinants to permit survival of heterologous donor cells. A case in point is the problem encountered in transfusions of patients with rare blood types or chronically transfused patients who become allosensitized to minor blood group determinants. We have
The National Academy of Sciences of the USA.
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6. Chemical signals in the marine environment: dispersal, detection, and temporal signal analysis.
Chemical signals connect most of life's processes, including interorganismal relationships. Detection of chemical signals involves not only recognition of a spectrum of unique compounds or mixtures of compounds but also their spatial and temporal distribution. Both spectral and temporal signal processing determine what is a signal and what is background nois