Ecdysis
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Compared activity of agonist molecules towards ecdysone receptor in insect cell-based screening system
RESUMO: O receptor de ecdisona, naturalmente ativado por hormônios esteroidais, é uma proteína-chave nos processos de muda e reprodução de insetos. A ativação artificial desse receptor por meio de pesticidas específicos induz um processo de ecdise anômala, levando o inseto à morte por dessecação e inanição. Neste trabalho, foi estabelecido um p
Arq. Inst. Biol.. Publicado em: 25/11/2019
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2. Biology of Triatoma carcavalloi Jurberg, Rocha & Lent, 1998 under laboratory conditions
Introduction Triatoma carcavalloi is a wild species that is found in sympatry with Triatoma rubrovaria and Triatoma circummaculata, which are vectors of Trypanosoma cruzi currently found in rural areas of Rio Grande do Sul, Brazil. Methods Fertility was assessed and to determine the incubation period, the eggs were observed until hatching. The first meal
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-06
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3. Expression profile of a Laccase2 encoding gene during the metamorphic molt in Apis mellifera (Hymenoptera,Apidae)
Expression profile of a Laccase2 encoding gene during the metamorphic molt in Apis mellifera (Hymenoptera, Apidae). Metamorphosis in holometabolous insects occurs through two subsequent molting cycles: pupation (metamorphic molt) and adult differentiation (imaginal molt). The imaginal molt in Apis mellifera L. was recently investigated in both histological a
Rev. Bras. entomol.. Publicado em: 31/05/2013
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4. O extrato de neem (Azadirachta indica) causa alterações no desenvolvimento ninfal, no aparelho reprodutor e sistema digestivo do predador Supputius cincticeps (Heteroptera: Pentatomidae)? / Does the neem (Azadirachta indica) extract cause nymphal development, the reproductive system and digestive tract of the predator Supputius cincticeps (Heteroptera: Pentatomidae)?
The subfamily Asopinae presents important species of predators, as Supputius cincticeps (Stal) (Hemiptera: Pentatomidae). These stinkbug present potential for the biological control of Lepidoptera defoliators in eucalyptus plantations in Brazil.Botanical insecticides, mainly neem (Azadirachta indica), are alternative for the control of herbivore insects of a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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5. Effects of five temperatures on the free living stages of Amblyomma parvum (Aragão, 1908) (Acari: Ixodidae) / Influência de Cinco Temperaturas na Fase de Vida Livre de Amblyomma parvum (Aragão, 1908) (Acari: Ixodidae)
Amblyomma parvum is a tick of wide geographical distribution which parasite wild and domestic animals. In Brazil, the literature records only data on their geographical distribution and hosts. There is no record on the action of different temperatures in Brazilian populations of this species. The objective of this work was to evaluate the effects of five dif
Publicado em: 2009
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6. Dinâmica e fatores-chave de mortalidade da broca do café (Hypothenemus hampei) / Dynamics and key factors of mortality of the coffee berry borer (Hypothenemus hampei)
The coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae) is a pest of coffee and is present in almost all countries producing the crop causing losses of US$ 500 million a year. Despite its importance, nothing is known about her key factor and critical stage of mortality. Therefor, the objective of this study was to determine the critical
Publicado em: 2009
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7. EFEITO DO NEMATÓIDE ENTOMOPATOGÊNICO Steinernema glaseri (STEINER, 1929) (RHABDITIDA: STEINERNEMATIDAE) ISOLADO SANTA ROSA SOBRE OS PARÂMETROS BIOLÓGICOS DE NINFAS INGURGITADAS DE Amblyomma cajennense (FABRÍCIUS, 1787) (ACARI: IXODIDAE)
Amblyomma cajennense (Fabrícius, 1787) (Acari: Ixodidade) is an ectoparasitic kind of horse, widely distributed in south and central America. The indiscriminate use of acaricidal has taken this animals population to a critical resistence situation to drugs and the exclusive use of acaricidal is just viable in pratical and economical terms became necessary t
Publicado em: 2007
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8. Feeding, defecation, and development times of Meccus longipennis Usinger, 1939 (Hemiptera: Reduviidae: Triatominae) under laboratory conditions
Aspects related to hatching, time-lapse between presenting the blood-meal and beginning of feeding, feeding time, postfeed defecation delay, mortality, and fecundity for each stage of Meccus longipennis life-cycle were evaluated. The bugs were maintained in a dark incubator at 27 ± 1ºC and 80 ± 5% rh, were fed weekly and checked daily for ecdysis or death
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-10
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9. Notes on the behavior of Pachistopelma rufonigrum Pocock (Araneae, Theraphosidae, Aviculariinae)
Aspects of the behavior of the theraphosid spider Pachistopelma rufonigrum, in two species of tank bromeliads in an area with white sands in the Serra de Itabaiana, Sergipe, Brazil, are described. Observations on habitat, microhabitat, foraging, ecdysis and reproduction, were made. Our data suggested that P. rufonigrum inhabits only these species of bromelia
Revista Brasileira de Zoologia. Publicado em: 2003-03
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10. Biology of Amblyomma aureolatum (Pallas, 1772) (Acari: Ixodidae) on some laboratory hosts in Brazil
The ixodid Amblyomma aureolatum is suspected to play a role in the epidemiology of wild life-cycle hemoparasites, which frequently infect dogs in rural and hunting areas in Brazil. Little is known about its bionomics. The objective of the present study was to evaluate some bionomic aspects of A. aureolatum ticks in Brazil. One engorged female, collected from
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-09
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11. The postembryonic development of the ocellar system of Triatoma infestans Klug (Heteroptera: Reduviidae)
Simple eyes or ocelli coexist with compound eyes in many adult insects. The change in the morphology of the ocelli along the five larval instars of Triatoma infestans was studied by light and scanning electron microscopy. Our analysis showed that the development of the ocelli of these bugs occurs gradually along the larval life. The photoreceptor layer is pr
Memórias do Instituto Oswaldo Cruz. Publicado em: 2000-12
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12. An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans
The simple eyes (ocelli) of recently emerged adult Triatoma infestans exhibit a narrow elongated "pupil", surrounded by a ring of brown-reddish pigment, the "iris". This pupil does not respond to changes in the illumination, but varies in size after the imaginal ecdysis. This change corresponds, internally, with the growth of the corneal lens and the associa
Memórias do Instituto Oswaldo Cruz. Publicado em: 2000-10