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| Registros recuperados: 94 | |
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| Praça,Lílian Botelho; Batista,Andréa Cardoso; Martins,Érica Soares; Siqueira,Claúdia Brod; Dias,Daniel Gerheim de Souza; Gomes,Ana Cristina Menezes Mendes; Falcão,Rosana; Monnerat,Rose Gomes. |
| O objetivo deste trabalho foi selecionar entre 300 estirpes de Bacillus thuringiensis as efetivas simultaneamente contra larvas de Spodoptera frugiperda J.E. Smith e Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae), Anthonomus grandis Boheman (Coleoptera: Curculionidae), Aedes aegypti Linnaeus e Culex quinquefasciatus Say (Diptera: Culicidae). Foram selecionadas duas estirpes de B. thuringiensis, denominadas S234 e S997, que apresentaram atividade contra as três ordens de insetos. As estirpes foram caracterizadas por métodos morfológicos, bioquímicos e moleculares. As mesmas apresentaram duas proteínas principais de 130 e 65 kDa, produtos de reação em cadeia da polimerase de tamanho esperado para a detecção dos genes cry1Aa, cry1Ab, cry1Ac, cry1B e... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Larva; Controle biológico; Proteína; Reação em cadeia da polimerase; Combate às pragas; Biopesticida. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000100002 |
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| Rodriguez-Rodriguez,Maria del Pilar; Lopera-Barrero,Nelson Mauricio; Ribeiro,Ricardo Pereira; Povh,Jayme Aparecido; Vargas,Lauro; Sirol,Rodolfo Nardez; Jacometo,Carolina Bespalhok. |
| El objetivo de este trabajo fue estimar la diversidad genética de un lote de Brycon orbignyanus usado en programas de repoblación, a través de marcadores microsatélites. Se analizaron muestras de 44 reproductores, de 70 larvas y de 69 alevinos, con la amplificación de cinco loci descritos para Brycon opalinus. El número de alelos, la heterozigosidad observada (Ho) y esperada (He), el índice de Shannon (IS), la diversidad genética de Nei (DGN), el coeficiente de endogamia (Fis), la distancia (DG) e identidad genética (IG), el número efectivo de alelos, el test del equilibrio de Hardy-Weinberg (EHW) y el desequilibrio de ligación fueron calculados. Reproductores y progenie tuvieron un número similar de alelos en los loci evaluados. La Ho media, IS, DGN, DG e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brycon orbignyanus; Alevino; Genética de la conservación; Larva; Manejo reproductivo; Variabilidad genética. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000100008 |
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| Abdalla,Fábio C; Sampaio,Guilherme; Pedrosa,Marina; Sipriano,Thamiris P; Domingues,Caio Eduardo C; Silva-Zacarin,Elaine Cristina M; Camargo,Daiane A. de. |
| Larval development of Physocephala (Diptera, Conopidae) in the bumble bee Bombus morio (Hymenoptera, Apidae). In the summer of 2012, a high incidence of conopid larvae was observed in a sample of female B. morio collected in remaining fragments of semidecidual forest and Cerrado, in the municipality of Sorocaba, state of São Paulo, Brazil. The larval development of conopid flies was studied, beginning at the larval instars (LO to L3) and PUP, until the emergence of the imago under laboratory conditions and inside the host. At the first instar, or LO, the microtype larvae measured less than 1 mm in length. During the transition from L1 to L3, the larvae grew in length. At L3, the larvae doubled their length (4 mm) and then started to develop both in length... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conopidae; Insecta; Larva; Parasitism; Physocephala. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000400007 |
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| Santis,Marcelo Domingos de; Nihei,Silvio Shigueo. |
| ABSTRACT The tachinid genus Cholomyia presents Neotropical and Nearctic distribution with three species: C. acromion (Wiedemann, 1824), C. filipes (Walker, 1857), and C. inaequipes Bigot, 1884. In the present paper, all species are reviewed and redescribed, and a new species from Costa Rica is described, C. zumbadoi sp. nov. An identification key based on males is provided. For the first time, the male terminalia of all species, and the female terminalia and first instar larva of C. inaequipes are described and illustrated. Finally, based on the detailed morphological study we discuss the systematic placement of Cholomyia into Myiophasiini-Tachininae. A list of host–parasite records is synthesized. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Larva; Myiophasiini; Redescription; Tachininae; Taxonomy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000300217 |
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| Salik,Lucy Mila Garcia; Dias,Fernando Maia Silva; Carneiro,Eduardo; Casagrande,Mirna Martins; Mielke,Olaf Hermann Hendrik. |
| ABSTRACT The external morphology and life cycle of the immature stages of Temenis laothoe meridionalis Hübner, [1819] (Lepidoptera, Nymphalidae, Biblidinae), associated with Serjania laruotteana (Sapindaceae) in Curitiba, Paraná, Brazil, are described and illustrated with photographs and images from scanning electron microscopy. Special aspects of the external morphology are compared to the immature stages of other species of Biblidinae. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Larva; Morphology; Neotropical; Host plant. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000100016 |
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| Rebechi,Débora; Navarro-Silva,Mário Antônio. |
| Species of Chironomidae are widely used as bioindicators of water quality, since their larvae undergo morphological deformities when in contact with sediment contaminated with chemicals. In this work we endeavored to study the morphology of head structures (antennae, mandible, mentum, pecten epipharyngis, ventromental plate and premandible) throughout the development of the four larval instars of Chironomus sancticaroli Strixino & Strixino, 1981, which can be used in environmental impact analyses. Our results show that it is possible to differentiate among larval instars by doing a quantitative analysis on the number of striae on the ventromental plates. The six structures analyzed changed during larval ontogeny. These changes are part of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicator; Larva; Mosquito; Morphology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200009 |
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| Pinheiro,Lívia R; Silva,Renato O; Duarte,Marcelo. |
| Egg and pupa of Lobeza dentilinea Schaus, 1901 are described and illustrated for the first time. Eggs are smooth, dome-shaped, and greenish at oviposition. Last instar larvae have an aposematic coloration and the chaetotaxy is very similar to other notodontines, except for the number of lateral setae: L. dentilinea has three instead of four lateral setae on abdominal segments A3-A6. Pupae are light brown and typical of the family, with the last abdominal segments broadly round. Evidence from the adult morphology supporting the placement of the genus in Notodontinae includes proboscis smaller than the length of the head, epiphysis with more than half the length of tibia, tarsal claws simple, and labial palpi short. Male and female are confidently... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cteniophore; Genitalia; Larva; Neotropical region; Pupa. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400014 |
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| Cabral Hassum,Izabella; Venturi,Caroline Rita; Gosmann,Grace; Girardi Deiro,Ana M. |
| Introdução: a ação de extratos hidroalcoólicos de Eugenia uniflora L. (pitangueira), Mentha x piperita L. (hortelã), Myrcianthes pungens (O. Berg) D. Legrand (guabiju) e Peltophorum dubium (Spreng.) Taub. (canafístula) foi avaliada sobre o desenvolvimento de nematódeos gastrintestinais nas coproculturas de ovinos. Objetivo: avaliar a ação in vitro dos extratos vegetais sobre os nematódeos gastrintestinais de ovinos. Métodos: cada extrato foi testado em culturas triplicadas de fezes nas seguintes concentrações: 200, 100, 20 e 2 mg.mL-1. Como controle positivo foi utilizado moxidectina (0,001 mg.mL-1) e água destilada como controle negativo. Após incubação, as larvas recuperadas foram fixadas, coradas e conservadas para posterior leitura. Resultados: a... |
| Tipo: Journal article |
Palavras-chave: Helmintos; Pequeno ruminante; Extrato vegetal; Larva; Eugenia uniflora; Mentha x piperita; Myrcianthes pungens; Peltophorum dubium. |
| Ano: 2013 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000200011 |
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| Registros recuperados: 94 | |
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