Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Behavioral responses of Spodoptera littoralis males to sex pheromone components and virgin females in wind tunnel Inra
Quero, C.; Lucas, P.; Renou, M.; Guerrero, A..
The major component of the sex pheromone of female Spodoptera littoralis, (Z,E)-9,11-tetradecadienyl acetate (1), elicited all steps of the male behavioral sequence, i.e., wing fanning and taking flight, oriented upwind flight and arrival to the middle of the tunnel, close approach and contact with the source. The activity was equivalent to that elicited by virgin females. In the range of doses tested, the dosage of 1 had no significant effect on the number of source contacts. Male response was significantly affected by light intensity, being optimum at 3 lux. Activity of the minor components (Z)-9-tetradecenyl acetate (2), (E)-11-tetradecenyl acetate (3), tetradecyl acetate (4), (Z)-11-tetradecenyl acetate (5), and (Z,E)-9,12-tetradecadienyl acetate (6)...
Tipo: Journal Article Palavras-chave: SPODOPTERA; LEPIDOPTERE; SENSILLE; PHEROMONE SEXUELLE; TUNNEL DE VOL WIND TUNNEL; BEHAVIOR; SINGLE SENSILLUM RECORDING; SPODOPTERA LITTORALIS; LEPIDOPTERA; NOCTUIDAE; EGYPTIAN ARMYWORM.
Ano: 1996 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002173058628&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Calcium activates a chloride conductance likely involved in olfactory receptor neuron repolarization in the moth Spodoptera littoralis Inra
Pézier, A.; Grauso, M.; Acquistapace, A.; Monsempes, C.; Rospars, J.P.; Lucas, P..
The response of insect olfactory receptor neurons (ORNs) to odorants involves the opening of Ca2+-permeable channels, generating an increase in intracellular Ca2+ concentration. Here, we studied the downstream effect of this Ca2+ rise in cultured ORNs of the moth Spodoptera littoralis. Intracellular dialysis of Ca2+ from the patch pipette in whole-cell patch-clamp configuration activated a conductance with a K-1/2 of 2.8 mu M. Intracellular and extracellular anionic and cationic substitutions demonstrated that Cl- carries this current. The anion permeability sequence I- > NO3- > Br- > Cl- > CH3SO(3)(-) >> gluconate(-) of the Ca2+-activated Cl- channel suggests a weak electrical field pore of the channel. The Ca2+-activated current partly...
Tipo: Journal Article Palavras-chave: CALCIUM; OLFACTION; NEURONE; RECEPTEUR; MITE; SPODOPTERA LITTORALIS; LEPIDOPTERA; INSECTE; CANAL A CALCIUM; CHLORURE; PERMEABILITE; CONCENTRATION; TENEUR EN CALCIUM NUCLEOTIDE-GATED CHANNELS; SMOOTH-MUSCLE-CELLS; PROTEIN-KINASE-C; ANTENNAL NEURONS; SENSORY NEURONS; IN-VITRO; CURRENTS; TRANSDUCTION; VOLUME; CILIA.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010398ba406&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
Characterization of an antennal carboxylesterase from the pest moth Spodoptera littoralis degrading a host plant odorant Inra
Durand, N.; Carot-Sans, G.; Chertemps, T.; Bozzolan, F.; Party, V.; Renou, M.; Debernard, S.; Rosell, G.; Maïbèche-Coisne, M..
Background: Carboxyl/cholinesterases (CCEs) are highly diversified in insects. These enzymes have a broad range of proposed functions, in neuro/developmental processes, dietary detoxification, insecticide resistance or hormone/ pheromone degradation. As few functional data are available on purified or recombinant CCEs, the physiological role of most of these enzymes is unknown. Concerning their role in olfaction, only two CCEs able to metabolize sex pheromones have been functionally characterized in insects. These enzymes are only expressed in the male antennae, and secreted into the lumen of the pheromone-sensitive sensilla. CCEs able to hydrolyze other odorants than sex pheromones, such as plant volatiles, have not been identified. Methodology: In...
Tipo: Journal Article Palavras-chave: LEPIDOPTERA; NOCTUIDAE; HEXAPODA; PCR; ADNC; SDS PAGE; EXPRESSION DES GENES; ELECTROPHORESE; CARBOXYLESTERASE; SPODOPTERA LITTORALIS; OLFACTION; ODEEUR; PLANTE HOTE; INSECTE; ENZYME; BIOLOGIE MOLECULAIRE; BIOCHIMIE; ELECTROPHYSIOLOGIE; PHEROMONE; PHEROMONE SEXUELLE; RECOMBINAISON; PROTEINE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010229c7cd1&uri=/notices/prodinra1/2011/05/
Imagem não selecionada

Imprime registro no formato completo
Characterization of Xenorhabdus isolates from La Rioja ( Northern Spain) and virulence with and without their symbiotic entomopathogenic nematodes (Nematoda: Steinernematidae) Inra
Campos-Herrera, R.; Tailliez, P.; Pages, S.; Ginibre, N.; Gutiérrez, C.; Boemare, N..
Eighteen Xenorhabdus isolates associated with Spanish entomopathogenic nematodes of the genus Steinernema were characterized using a polyphasic approach including phenotypic and molecular methods. Two isolates were classified as Xenorhabdus nematophila and were associated with Steinernema carpocapsae. Sixteen isolates were classified as Xenorhabdus bovienii, of which fifteen were associated with Steinernema feltiae and one with Steinernema kraussei. Two X. bovienii Phase II were also isolated, one instable phase isolated from S. feltiae strain Rioja and one stable phase from S. feltiae strain BZ. Four representative bacterial isolates were chosen to study their pathogenicity against Spodoptera littoralis with and without the presence of their nematode...
Tipo: Journal Article Palavras-chave: ENTOMOPATHOGENIC BACTERIA AND NEMATODE; PATHOGENICITY; SPODOPTERA LITTORALIS; STEINERNEMA; XENORHABDUS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108be8d96&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
Modes of phagocytosis of Gram-positive and Gram-negative bacteria by Spodoptera littoralis granular haemocytes Inra
Costa, S.C.P.; Ribeiro, C.; Girard, P.A.; Zumbihl, R.; Brehélin, M..
Haemocytes are the main immunocompetent cells in insect cellular immune reactions. Here, we show that in Spodoptera littoralis, granular haemocytes are the primary phagocyte haemocytes, both in vivo and in vitro. The "trigger" and "zipper" modes of engulfment known in mammal macrophages are active, in vivo, in S. littoralis granular haemocytes, together with macropinocytosis. Lipopolysaccharide as well as lipoteichoic acid inhibit the binding of both Gram-positive (Corynebacterium xerosis) and Gramnegative (Escherichia coli) bacteria on granular haemocytes. In addition, different ligands can inhibit the binding of E coli. Most of these inhibitors are known as ligands of scavenger receptors in mammal macrophages and we hypothesise that one of the receptors...
Tipo: Journal Article Palavras-chave: SPODOPTERA LITTORALIS; NOCTUELLE MACROPINOCYTOSIS; TRIGGER; ZIPPER; RECEPTOR; INSECT.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201069bfa10d&uri=/notices/prodinra1/2011/05/
Imagem não selecionada

Imprime registro no formato completo
Molecular characterization of a phospholipase C β potentially involved in moth olfactory transduction Inra
Chouquet, B.; Lucas, P.; Bozzolan, F.; Solvar, M.; Maïbèche-Coisné, M.; Durand, N.; Debernard, S..
To clarify the role of phospholipase C (PLC) in insect olfactory transduction, we have undertaken its molecular identification in the moth Spodoptera littoralis. From the analysis of a male antennal expressed sequence tag library, we succeeded in cloning a full-length cDNA encoding a PLC that belongs to the cluster of PLC-b subtypes. In adult males, the PLC-b transcript was located predominantly in brain and antennae where its presence was detected in the olfactory sensilla trichodea. Moreover, PLC-b was expressed in antennae at the beginning of the pupal stage, then reached a maximum at the end of this stage and was maintained at this level during the adult period. Taken together, these results provided molecular evidence for the putative participation of...
Tipo: Journal Article Palavras-chave: INSECTE; PHOSPHOLIPASE; OLFACTION; ODEUR; MITE; TECHNIQUE ANALYTIQUE; SEQUENCE NUCLEOTIDIQUE; EXPRESSION DES GENES; ADNC; TRANSCRIPTION; NORTHERN BLOT; ELECTROPHORESE; PCR; CLONAGE MOLECULAIRE; ANALYSE PHYLOGENETIQUE; LEPIDOPTERA; NOCTUELLE MEDITERRANEENNE EXPRESSION PATTERNS; OLFACTORY SYSTEM; PHOSPHOLIPASE C; SPODOPTERA LITTORALIS; SIGNAL TRANSDUCTION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108d7c7c75&uri=/notices/prodinra1/2010/09/
Imagem não selecionada

Imprime registro no formato completo
NS-3 protein of the Junonia coenia densovirus is essential for viral DNA replication in an Ld 652 cell line and Spodoptera littoralis larvae Inra
Abd-Alla, A.; Jousset, O.X.; Li, Y.; Fédière, G.; Cousserans, F.; Bergoin, M..
The genome of Junonia coenia densovirus (JcDNV) shares with members of the genus Densovirus the property of possessing structural (VP) and nonstructural (NS) genes in opposite orientations. The three NS genes located in the 5' half on one strand encode three NS proteins assumed to be involved in viral DNA replication: NS-1 and NS-2, which are common to all DNVs, and a 28-kDa polypeptide, NS-3, with a unique sequence. Whereas the essential role played by JcDNV NS-1 in viral DNA replication has been clearly established (C. Ding, M. Urabe, M. Bergoin, and R. M. Kotin, J. Virol. 76:338-345, 2002), nothing is known of the biological function(s) of NS-3. To investigate this function, we designed constructs derived from pBRJ, a plasmid encompassing an infectious...
Tipo: Journal Article Palavras-chave: JUNONIA COENICA; SPODOPTERA LITTORALIS; DENSOVIRUS; VIRAL DNA REPLICATION.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008cdec6062&uri=/notices/prodinra1/2009/03/
Imagem não selecionada

Imprime registro no formato completo
Plant terpenes affect intensity and temporal parameters of pheromone detection in a moth Inra
Party, V.; Hanot, C.; Said, I.; Rochat, D.; Renou, M..
In moths, the components of the female pheromone blend are detected in the male antennae by pheromone olfactory receptor neurons (Ph-ORNs) expressing narrowly tuned olfactory receptors. Responses to sex pheromones have generally been thought to be independent from the odorant background. However, interactions between pheromone components and plant volatiles have been reported at behavioral and detection levels. To document the mechanisms of such interactions, we analyzed Ph-ORN responses of Spodoptera littoralis to the main pheromone component, Z9E11-14:Ac, in the presence of 4 monoterpenes. To mimic natural contexts in which plant odors and pheromone emanate from different sources, the 2 stimuli were presented with different temporal patterns and from...
Tipo: Journal Article Palavras-chave: SPODOPTERA LITTORALIS; NOCTUIDAE; ARTHROPODA; HEXAPODA; INSECTE; LEPIDOPTERA; PLANTE; COMPOSE VOLATILE; MITE; MONOTERPENE; PHEROMONE; ATTRACTIF SEXUEL; ODEUR  ODORANT INTERACTIONS; OLFACTION; OLFACTORY RECEPTOR NEURONS; PLANT VOLATILE COMPOUNDS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010e254489a&uri=/notices/prodinra1/2010/10/
Registros recuperados: 8
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional