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| Registros recuperados: 115 | |
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| QUEZADO-DUVAL, A. M.; INOUE-NAGATA, A. K.; REIS, A.; PINHEIRO, J. B.; LOPES, C. A.; ARAÚJO, E. R.; FONTENELLE, M. R.; COSTA, J. R.; GUIMARÃES, C. M. N.; ROSSATO, M.; BECKER, W. F.; COSTA, H.; FERREIRA, M. A. S. V.; DESTÁFANO, S. A. L.. |
| No intuito de estudar quais as principais doenças para os cultivos nacionais, realizou-se um levantamento no período de 2008 a 2011 em diferentes regiões produtoras no Brasil, que abrangeu 93 lavouvas de tomate para mesa em 12 estados e no Distrito Federal e 51 lavouras nos três estados produtores de tomate para processamento industrial e no Distrito Federal. |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Tomate; Doença de planta; Praga; Inseto; Mosca branca; Virus; Bacteria; Fungo; Nematoide.; Solanum lycopersicum.. |
| Ano: 2013 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/974139 |
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| Le Saux, Jean-claude; Serais, Ophelie; Krol, Joanna; Parnaudeau, Sylvain; Salvagnac, P.; Delmas, G.; Cicchelero, V.; Claudet, J.; Pothier, P.; Balay, K.; Fiandrino, Annie; Pommepuy, Monique; Le Guyader, Soizick. |
| Infectious diseases linked to the consumption of raw shellfish have long been identified. Over the past century, various strategies have been set up in shellfish growing areas throughout the world to guarantee the sanitary quality of shellfish and to protect consumers. However despite sanitary improvements, human enteric viruses - especially Hepatitis A virus and norovirus– have been found to be associated with shellfish outbreaks. A recent example demonstrated the impact of storm events. Following heavy rain and sewage overflow, shellfish beds were contaminated and the shellfish from them were marketed after depuration. However, since viruses persist longer than fecal contamination indicator bacteria, several clusters of gastroenteritis cases were... |
| Tipo: Text |
Palavras-chave: Virus; Shellfish; Contamination events. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00066/17736/15257.pdf |
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| Loisy, Fabienne; Atmar, R; Le Saux, Jean-claude; Cohen, J; Caprais, Marie-paule; Pommepuy, Monique; Le Guyader, Soizick. |
| Rotavirus virus-like particles (VLPs) and MS2 bacteriophages were bioaccumulated in bivalve mollusks to evaluate viral persistence in shellfish during depuration and relaying under natural conditions. Using this nonpathogenic surrogate virus, we were able to demonstrate that about 1 log(10) of VLPs was depurated after 1 week in warm seawater (22 degrees C). Phage MS2 was depurated more rapidly (about 2 log(10) in 1 week) than were VLPs, as determined using a single-compartment model and linear regression analysis. After being relayed in the estuary under the influence of the tides, VLPs were detected in oysters for up to 82 days following seeding with high levels of VLPs (concentration range between 10(10) and 10(9) particles per g of pancreatic tissue)... |
| Tipo: Text |
Palavras-chave: Seawater; Viral diseases; Bioaccumulation; Depuration; Contamination; Model; Pancreas; Regression analysis; Shellfish; Phages; Virus. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1233.pdf |
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| Renault, Tristan. |
| Mortalities in a number of commercially important mollusc species have been associated with the detection of viruses belonging to several families. The first description of a virus was in adult eastern oyters, Crassostrea virginica, with the detection of virus particles resembling members of the family Herpesviridae. Subsequently, mass mortalities in French stocks of adult Portuguese oysters, C. angulata, were associated with irido-like virus infection. Other viruses observed in molluscs are described as members of the families Iridoviridae, Papovaviridae and Reoviridae. Little information is available on viral infections that affect molluscs due to primarily to the inadequacy of diagnostic methods that are employed when mass mortality events occur. Most... |
| Tipo: Text |
Palavras-chave: Virus; Scallops; Picornavirus; Oyter herpesvirus 1; Oysters; Molluscs; Irido Like virus; Diseases; Herpesvirus; Clams; Bivalves; Birnavirus; Abalones. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4932.pdf |
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| Renault, Tristan. |
| Le Laboratoire de Génétique, Aquaculture et Pathologie (GAP) de la Station IFREMER de La Tremblade, se propose dans le présent projet d'étudier le virus de type herpès observée chez les huîtres (pouvoir pathogène, conditions d'expression de l'infection, transmission, etc ... ) et de développer des réactifs permettant de réaliser un diagnostic rapide, sensible et fiable de l'infection qu'il occasionne. Les outils de diagnostic développés sont basés sur la détection directe du virus, soit au moyen de réactifs immunologiques spécifiques des antigènes viraux, soit par des techniques de biologie moléculaire permettant de détecter l'ADN viral (hybridation de sondes nucléiques et réaction PCR). Ce projet, proposé sur une durée de trois années (1995-1998),... |
| Tipo: Text |
Palavras-chave: Virus; Pathologie; Herpès virus; Crassostrea gigas; Pathogène; Herpesviridae. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00043/15450/12825.pdf |
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| Poulos, Bonnie; Tang, K; Pantoja, C; Bonami, Jean-robert; Lightner, D. |
| The causative agent of myonecrosis affecting cultured Penaeus vannamei in Brazil was demonstrated to be a virus after purification of the agent from infected shrimp tissues. Purified viral particles were injected into specific pathogen-free P. vannamei, resulting in a disease that displayed the same characteristics as those found in the original shrimp used for purification. The virus was named infectious myonecrosis virus (IMNV). The viral particles were icosahedral in shape and 40 nm in diameter, with a buoyant density of 1(.)366 g ml(-1) in caesium chloride. The genome consisted of a single, double-stranded (dsRNA) molecule of 7560 bp. Sequencing of the viral genome revealed two non-overlapping open reading frames (ORFs). The 5' ORF (ORF 1, nt 136-4953)... |
| Tipo: Text |
Palavras-chave: Purification; Myonecrosis; Virus; Shrimp; Penaeid. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1504.pdf |
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| Renault, Tristan. |
| Bivalve molluscs are filter feeders and as a consequence they may bioaccumulate in their tissues viruses that infect humans and higher vertebrates. However, there have also been described mortalities of bivalve molluscs associated with viruses belonging to different families. Mass mortalities of adult Portuguese oysters, Crassostrea angulata, among French livestocks (between 1967 et 1973) were associated with irido-like virus infections. Herpesviruses were reported in the eastem oyster, Pacific oyster and European flat oyster and lately in scallops and clams. Disseminated neoplasia, a proliferative cell disorder of the circulatory system of bivalves, although of uncertain aetiology, has been suggested to be caused by retroviral infections. Other viruses... |
| Tipo: Text |
Palavras-chave: Infection; Virus; Mollusc; Bivalve; Infection; Virus; Mollusque; Bivalve. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2925.pdf |
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| Renault, Tristan. |
| L'Unité de Recherche en Pathologie et Immunologie Générales (Station IFREMER de La Tremblade) se propose dans le présent projet d'étudier le virus de type herpès observée chez les huîtres (pouvoir pathogène, conditions d'expression de l'infection, transmission, etc ... ) et de développer des réactifs permettant de réaliser un diagnostic rapide, sensible et fiable de l'infection qu'il occassionne. Les diagnostics proposés seront basés sur la détection directe du virus, soit au moyen de réactifs immunologiques spécifiques des antigènes viraux, soit par des techniques de biologie moléculaire permettant de détecter l'ADN viral (hybridation de sondes nucléiques et réaction PCR : Polymerase Chain Reaction). Ce projet, proposé sur une durée de trois années... |
| Tipo: Text |
Palavras-chave: Virus; Herpès; Pathogène; Purification; Herpesviridae; Crassostrea gigas. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00043/15447/12818.pdf |
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| Arzul, Isabelle. |
| Au cours de l'été 1991, d'importantes mortalités de larves d'huître creuse, Crassostrea gigas, ont été observées dans des écloseries, simultanément en France (Comps et Cochennec, 1993) et en Nouvelle-Zélande (Hine & al., 1992). Les examens histologiques ainsi que des examens réalisés en microscopie électronique à transmission d'échantillons de larves présentant des mortalités ont permis de détecter la présence de particules virales associées à des lésions cellulaires. D'après la morphologie, la taille, les localisations intranucléaires et cytoplasmiques du virus, il est possible d'envisager son appartenance à la famille des Herpesviridae. De nouvelles mortalités sporadiques ont été observées au cours des étés suivants sur des lots de larves élevées... |
| Tipo: Text |
Palavras-chave: Virus; Herpesviridae; Bivalve; Crassostrea gigas; Etiologie; Epidémiologie; Diagnostic; Reproduction infection. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00106/21711/19289.pdf |
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| Registros recuperados: 115 | |
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