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
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
Etude experimentale de l'action pathogene du nematode Neoaplectana carpocapsae weiser; recherches gnotobiologiques chez l'insecte Galleria mellonella L.(1) Inra
Boemare, N.; Bonifassi, E.; Laumond, C.; Luciani, J..
Une nouvelle méthode d’obtention d’individus axéniques de Neoaplectana carpocapsae a été mise au point à partir des larves néonates après aseptisation des oeufs. En condition parasitaire dans l’insecte hôte axénique, les larves L1 stériles inoculées se développent jusqu’au stade adulte, mais ne peuvent donner de descendance. En condition saprophyte, l’élevage axénique du nématode a été rendu possible après dépôt de L1 stériles sur un milieu stérile ayant subi une supplémentation bactérienne. Les bactéries, ensemencées sur le milieu destiné aux nématodes, le transforment et produisent une biomasse que l’on inactive ensuite pour offrir aux L1 stériles un substrat bioconverti stérile. Dans ces conditions on obtient un élevage axénique au rendement...
Tipo: Journal Article Palavras-chave: NEOAPLECTANA CARPOCAPSAE; GALLERIA MELLONELLA; MODE D'ACTION; XENORHABDUS NEMATOPHILUS; ELEVAGE AXENIQUE; NUTRITION; ELEVAGE GNOTOXENIQUE.
Ano: 1983 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=ANT94&uri=/notices/prodinra1/2008/07/
Imagem não selecionada

Imprime registro no formato completo
Interspecific competition between entomopathogenic nematodes (Steinernema) is modified by their bacterial symbionts (Xenorhabdus) Inra
Sicard, M.; Hinsinger, J.; Le Brun, N.; Pages, S.; Boemare, N.; Moulia, C..
Background: Symbioses between invertebrates and prokaryotes are biological systems of particular interest in order to study the evolution of mutualism. The symbioses between the entomopathogenic nematodes Steinernema and their bacterial symbiont Xenorhabdus are very tractable model systems. Previous studies demonstrated (i) a highly specialized relationship between each strain of nematodes and its naturally associated bacterial strain and (ii) that mutualism plays a role in several important life history traits of each partner such as access to insect host resources, dispersal and protection against various biotic and abiotic factors. The goal of the present study was to address the question of the impact of Xenorhabdus symbionts on the progression and...
Tipo: Journal Article Palavras-chave: XENORHABDUS; STEINERNEMA; ENTOMOPATHOGENIC NEMATODE; HOST-SYMBIONT SPECIFICITY; MOLECULAR PHYLOGENY; SYMBIOSIS; DESCRIPTION.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200877ef46a8&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
Les nématodes entomopathogènes : steinernematidae et heterorhabditidae Inra
Mauléon, H.; Boemare, N.; Denon, D.; Briand, S.; Pages, S..
Tipo: Book Palavras-chave: CARACTERISATION MORPHOLOGIQUE; CARACTERISATION MOLECULAIRE; BIOGEOGRAPHIE; CONSERVATION.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20087b7cb8cf&uri=/notices/prodinra1/2008/09/
Imagem não selecionada

Imprime registro no formato completo
Site-specific antiphagocytic function of the Photorhabdus luminescens type III secretion system during insect colonization Inra
Brugirard-Ricaud, K.; Duchaud, E.; Givaudan, A.; Girard, P.A.; Kunst, F.; Boemare, N.; Brehélin, M.; Zumbihl, R..
Photorhabdus is an entomopathogenic bacterium belonging to the Enterobacteriaceae. The genome of the TT01 strain of Photorhabdus luminescens was recently sequenced and a large number of toxin-encoding genes were found. Genomic analysis predicted the presence on the chromosome of genes encoding a type three secretion system (TTSS), the main role of which is the delivery of effector proteins directly into eukaryotic host cells. We report here the functional characterization of the TTSS. The locus identified encodes the secretion/translocation apparatus, gene expression regulators and an effector protein - LopT - homologous to the Yersinia cysteine protease cytotoxin YopT. Heterologous expression in Yersinia demonstrated that LopT was translocated into mammal...
Tipo: Journal Article Palavras-chave: ENTOMOPATHOGENIC BACTERIUM; GENE EXPRESSION; ENTOMOPATHOGENIC NEMATODE; INSECT CELL MEMBRANE.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008e8fb85eb&uri=/notices/prodinra1/2009/03/
Imagem não selecionada

Imprime registro no formato completo
Stages of infection during the tripartite interaction between Xenorhabdus nematophila, its nematode vector, and insect hosts Inra
Sicard, M.; Brugirard-Ricaud, K.; Pages, S.; Lanois, A.; Boemare, N.; Brehélin, M.; Givaudan, A..
Bacteria of the genus Xenorhabdus are mutually associated with entomopathogenic nematodes of the genus Steinernema and are pathogenic to a broad spectrum of insects. The nematodes act as vectors, transmitting the bacteria to insect larvae, which die within a few days of infection. We characterized the early stages of bacterial infection in the insects by constructing a constitutive green fluorescent protein (GFP)-labeled Xenorhabdus nematophila strain. We injected the GFP-labeled bacteria into insects and monitored infection. We found that the bacteria had an extracellular life cycle in the hemolymph and rapidly colonized the anterior midgut region in Spodoptera littoralis larvae. Electron microscopy showed that the bacteria occupied the extracellular...
Tipo: Journal Article Palavras-chave: XENORHABDUS; ENTOMOPATHOGENIC NEMATODE; STEINERNEMA; GFP-LABELED; INTESTINAL VESICLE; SPODOPTERA.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008345034c5&uri=/notices/prodinra1/2009/03/
Imagem não selecionada

Imprime registro no formato completo
Steinernema sichuanense n. sp (Rhabditida, Steinernematidae), a new species of entomopathogenic nematode from the province of Sichuan, east Tibetan Mts., China Inra
Mracek, Z.; Nguyen, K.B.; Tailliez, P.; Boemare, N.; Chen, S..
Steinernema sichuanense n. sp. is characterized by male, female and IJ. For male, the spicules are robust with prominent rostrum; gubernaculum has blunt anterior end; cuneus is arrow-shaped, pointed posteriorly. Second-generation male has a prominent mucron. For female, tail usually has one to four papillae-like projections on tail tip; post anal swelling is absent. For U, body length is about 7 10 gm; lateral field has six ridges; the formula of lateral field is 2, 5, 6, 4, 2 with two prominent submarginal ridges; tail usually has a dorsal depression. In Steinernema affine/intermedium group, the U of S. sichuanense n. sp. differs from S. affine by its absence of the internal tail spine; differs from Steinernema beddingi by its six ridges in lateral field...
Tipo: Journal Article Palavras-chave: DESCRIPTION; ENTOMOPATHOGENIC NEMATODE; INSECT PARASITE; MOLECULAR; NEW SPECIES; PHYLOGENETIC SYSTEMATIC; STEINERNEMA; XENORHABDUS; TAXONOMY.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008a03b64c&uri=/notices/prodinra1/2009/03/
Imagem não selecionada

Imprime registro no formato completo
Whole-genome comparison between Photorhabdus strains to identify genomic regions involved in the specificity of nematode interaction Inra
Gaudriault, S.; Duchaud, E.; Lanois, A.; Canoy, A.S.; Bourot, S.; DeRose, R.; Kunst, F.; Boemare, N.; Givaudan, A..
The bacterium Photorhabdus establishes a highly specific association with Heterorhabditis, its nematode host. Photorhabdus strains associated with Heterorhabditis bacteriophora or Heterorhabditis megidis were compared using a Photorhabdus DNA microarray. We describe 31 regions belonging to the Photorhabdus flexible gene pool. Distribution analysis of regions among the Photorhabdus genus identified loci possibly involved in nematode specificity
Tipo: Journal Article Palavras-chave: PHOTORHABDUS; HETERORHABDITIS; GENE POOL; GENOME SEQUENCE; HYBRIDIZATION; CHROMOSOMAL SEQUENCE.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200879731a17&uri=/notices/prodinra1/2009/01/
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