|
|
|
| Registros recuperados: 135 | |
|
|
| Alves,Gutemberg G.; Marinho-Carvalho,Monica M.; Atella,Georgia C.; Silva-Neto,Mario A.C.; Sola-Penna,Mauro. |
| 6-phosphofructo-1-kinase (phosphofructokinase; PFK) activity from Rhodnius prolixus, a haematophagous insect which is usually a poor flyer, was measured and compared in two metabolically active tissues - flight muscle and fat body. The activity of this important regulatory glycolytic enzyme was much more pronounced in muscle (15.1 ± 1.4 U/mg) than in fat body extracts (3.6±0.4 U/mg), although the latter presented higher levels of enzyme per protein content, as measured by western-blotting. Muscle extracts are more responsible than fat body to ATP and fructose 6-phosphate, both substrates of PFK. Allosteric regulation exerted by different effectors such as ADP, AMP and fructose 2,6-phosphate presented a singular pattern for each tissue. Optimal pH (8.0-8.5)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphofructokinase; Metabolism; Insect. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100008 |
| |
|
| |
|
| |
|
|
| Victoriano,Eliane; Gregório,Elisa A.. |
| The Lyonet's gland is found in Lepidoptera larvae, close to the excretory duct of the silk gland. The role played by this gland is still uncertain. This work aims to describe the ultrastructure of the Lyonet's gland in Diatraea saccharalis larvae, offering suggestions regarding its possible function. The insects were reared under laboratory-controlled conditions. The glands were conventionally prepared for transmission (TEM) and scanning (SEM) electron microscopy. SEM showed that Lyonet's glands are paired small structures located in the ventral side of the head. They are composed by clustered long cells resembling leaves. Under TEM observations, each cell is surrounded by a thin basal lamina and contains large stellate nucleus. The cytoplasm presents... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Accessory gland; Insect; Sugarcane borer; Morphology. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000200006 |
| |
|
|
| Souza-Firmino,Tatiani Seni de; Alevi,Kaio Cesar Chaboli; Pereira,Luis Lenin Vicente; Banho,Cecilia Artico; Silva Junior,Fernando Cesar; Souza,Emi Rosane Silistino de; Itoyama,Mary Massumi. |
| In the present paper, 27 chromatic patterns of the specie Pachycoris torridus (Scopoli, 1772) were grouped and three new patterns are described. Because of this high phenotypic polymorphism, P. torridus already been registered eight times as a new specie, highlighting the importance of the application of different tools to assist in taxonomy of this hemipterous of economic importance. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Insect; Heteroptera; Polymorphism; Agricultural pest. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100406 |
| |
|
|
| Marti,G. A.; García,J. J.; Cazau,M. C.; López Lastra,C. C.. |
| A survey of the fungal microbiota of the digestive tract of Triatoma infestans (Klug) (Hemiptera: Reduviidae) adults was carried out. Insects captured in the field from different provinces in Argentina, as well as individuals reared in artificial colonies, were used for dissection. Axenic cultures of the fungal species were identified and were deposited with mycological collections at La Plata , Argentina. A total of 33 fungal species, with the exception of three that were mycelia sterilia, belonging to 11 genera were identified. Thirty two species belonged to Ascomycota (Eurotiomycetes and Sordariomycetes) and one to Zygomycota (Zygomycetes). The genera with the greatest number of species were Penicillium (15), Aspergillus (5), and Cladosporium (2). Among... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Argentina; Digestive tract; Fungal microflora; Insect; Symbionts; Triatoma infestans. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722007000200004 |
| |
|
|
| Falleiros,Ângela Maria Ferreira; Bombonato,Maria Terezinha Siqueira; Gregório,Elisa Aparecida. |
| Six circulating hemocytes cell types from Diatraea saccharalis (Fabricius) (Lepidoptera: Pyralidae) larvae were identified by transmission and scanning electron microscope: prohemocytes (PR), plasmatocytes (PL) granulocytes (GR), spherulocytes (SP), oenocytoids (OE) and vermicytes (VE). The PR was the smallest cell type with a large nucleus, a cytoplasm with few organelles and a homogenous smooth surface. The PL was polymorphic and abundant, with a cytoplasm rich in organelles and a cellular surface with several cytoplasmic projections. The GR was abundant, showing two types of membrane-bounded granules (dense and structutered), glycogen, lipid droplets and a surface with philopodial projections. The SP was a large cell, with a cytoplasm full of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insect; Lepidoptera; Hemocytes; Ultrastructural Morphology; Differential Hemocyte Count; Morphometry. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200021 |
| |
|
|
| Ramos,Márcio V.; Araújo,Eliane S.; Oliveira,Raquel S. B.; Teixeira,Fabiano M.; Pereira,Danielle A.; Cavalheiro,Mariana G.; Souza,Diego P.; Oliveira,Jefferson S.; Freitas,Cleverson D. T. de. |
| Latex is an endogenous milky fluid synthesized and accumulated under pressure in a network of laticifer cells. In this study, latices from five plant species were examined for deterrent effect on oviposition of two Coleoptera (Bruchidae) pests. The latex from Euphorbia tirucalli, Calotropis procera and Plumeria rubrae exhibited deterrent activity on oviposition of both Callosobruchus maculatusand Zabrotis subfasciatus beetles. The latex from Cryptostegia grandiflora and Himathantus drasticus were less effective to C. maculatus and Z. subfasciatus oviposition, respectively. Eggs laid on latex-treated seeds were not affected.The emergence and the mean time of development and weight of larvae grown in treated seeds were similar to the controls. The deterrent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calotropis procera; Deterrent activity; Insect; Laticifers; Proteins; Plumeria rubra. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000100008 |
| |
|
|
| Lourenço,Samara Letícia Oliveira; Luiz,Marcelo Felix; Jesus,Flávio Gonçalves de; Carvalho,Daniel Diego Costa; Hornburg,Michael; Araújo,Márcio da Silva. |
| ABSTRACT: The deficient development of fertile seeds of native forest plant species in Brazil limits the reproduction of these plants in various conditions. Among the limiting biotic factors in quality and quantity of the forest seeds, borer insects are quite prominent, before and after their dispersion. This study reports for the first time a host of the buprestid beetle Lius conicus (Gory & Laporte, 1840). The larval development of L. conicus takes place in the seed capsules of Vochysia haenkeana Mart. (Vochysiaceae), a typical tree species in the Brazilian cerrado biome. In two regions of the cerrado in Goiás State, Brazil, almost ripe fruits of V. haenkeana were collected directly from the plants. After natural drying, and fruit and seed processing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian cerrado; “pau-amarelo”; Seed damage; Insect. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900153 |
| |
|
| |
|
| |
|
| |
|
| |
| Registros recuperados: 135 | |
|
|
|
