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Registros recuperados: 67
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A review of the known hosts geographical range and current diagnostic procedures for the virus diseases of cultured penaeid shrimp ArchiMer
Lightner, D; Bell, T; Redman, R.
At least six virus diseases are presently known in cultured penaeid shrimp. Each of these six penaeid virus diseases (BP = Baculovirus penaei ; MBV = Penaeus monodon -type baculovirus (including PBV of Australian penaeids); BMN = baculoviral midgut gland necrosis; HPV = hepatopancreatic parvo-like virus; IHHNV = infectious hypodermal and hematopoietic necrosis virus; and REO = reo-like virus of the hepatopancreas) may be comprised by a multitude of individual strains, some of which are highly pathogenic to some penaeids, while being of little importance to others.
Tipo: Text Palavras-chave: Baculovirus penaei; Penaeus japonicus; Penaeus monodon; Malacostraca; Marine crustaceans; Necroses; Infectious diseases; Viruses; Diseases.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1481.pdf
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Bud Necrosis:Bud Necrosis: A Disease of Groundnut Caused by Tomato Spotted Wilt Virus Open Agri
D.V.R..
Palavras-chave: Necrosis; ELISA; Groundnuts; Sucrose; Amines; Insecticides; Cytoplasmic organelles; Poultry equipment; Viruses; Antibiotics.
Ano: 1990 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4665
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Challenges in shrimp aquaculture due to viral diseases: distribution and biology of the five major penaeid viruses and interventions to avoid viral incidence and dispersion BJM
Seibert,Caroline H.; Pinto,Aguinaldo R..
Shrimp aquaculture has been dramatically affected by many pathogenic diseases, mainly caused by five viruses: IHHNV, YHV, TSV, WSSV, and IMNV. Here we provide a state-of-the-art overview of these shrimp viruses, with emphasis on distribution, pathology, morphology, and genomic organization, in addition to current diagnostic methods and intervention practices.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Shrimp aquaculture; Viruses; Diagnostic methods; Disease control.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300002
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Characterization of cucurbit production systems and disease prevalence in municipalities in Pernambuco. Repositório Alice
SILVA, G. T. M. de A.; RIBEIRO, R. M. P.; BARROS JÚNIOR, A. P.; SILVEIRA, L. M. da; RIBEIRO JUNIOR, P. M.; ALBUQUERQUE, N. R. C. de.
Cucurbits have great economic, nutritional and social importance in the Brazilian semiarid region. In this region, many factors can result in reduced productivity of these crops, especially fungal and viral diseases. Therefore, knowledge of cucurbits is crucial for proper disease management. The objective of this work was to identify the major diseases of cucurbits grown in some municipalities in the Hinterland of the state of Pernambuco. Thus, plant samples were collected with symptoms in crops in the municipalities of Salgueiro, Serra Talhada, Floresta, Petrolândia, Ibimirim, Custódia and Inajá. A questionnaire was also applied to gather information about the production profile of producers. Seven fungal pathogens infecting cucurbits were identified:...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Citrullus; Levantamento fitopatológico; Citrullus; Cucurbitacea; Fungo; Doença; Plant pathology; Cucurbita; Cucumis; Fungi; Viruses.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1067409
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Comportamento em relacao as doencas e desempenho agronomico de cultivares de maracujazeiro-azedo cultivadas sem agrotoxicos no Distrito Federal. Infoteca-e
JUNQUEIRA, N. T. V.; ANJOS, J. de R. N. dos; SILVA, A. P. de O.; CHAVES, R. da C.; GOMES, A. C..
2002
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Maracuja; Passiflora edulis; Doenca de planta; Bacteriose; Antracnose; Verrugose; Fungo; Virus; Variedade resistente; Rendimento; Caracteristicas agronomicas; Controle integrado; Passion fruits; Plant diseases; Bacterioses; Anthracnosis; Fungi; Viruses; Disease resistance; Yields; Agronomic characteres; Integrated control.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/559760
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Comportamiento de los virus de crustáceos de declaración obligatoria de la OIE en Litopeneaeus vannamei de cultivo en Cuba en el período 2003-2009 OceanDocs
Artiles, A.; Rubio, M.; Gonzalez, E.; Laria, R.; Silveira, R..
Uno de los principales problemas del cultivo del camarón blanco del Pacífico, Litopeneaeus vannamei, es la susceptibilidad de esta especie a diversas enfermedades virales, que pueden conducir a grandes mortalidades y/o pérdidas económicas. En este trabajo se reportan los resultados obtenidos en la ejecución de los muestreos periódicos y chequeos de cuarentenas correspondientes al programa de vigilancia, desde la primera introducción de esta especie en Cuba en 2003 hasta el 2009. Para ello se emplearon técnicas de análisis en fresco, histológicas y de biología molecular. En este período, no se detectó ninguno de los virus de crustáceos que son de declaración obligatoria por la Organización Mundial de la Salud Animal (OIE, de sus siglas en francés): el virus...
Tipo: Journal Contribution Palavras-chave: Viruses; Cultures.
Ano: 2011 URL: http://hdl.handle.net/1834/4621
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Comportamiento de los virus de crustáceos de declaración obligatoria de la OIE en Litopeneaeus vannamei de cultivo en Cuba en el período 2003-2009 OceanDocs
Gonzalez, E.; Rubio, M.; Laria, R.; Silveira, R.; Artiles, A..
Uno de los principales problemas del cultivo del camarón blanco del Pacífico, Litopeneaeus vannamei, es la susceptibilidad de esta especie a diversas enfermedades virales, que pueden conducir a grandes mortalidades y/o pérdidas económicas. En este trabajo se reportan los resultados obtenidos en la ejecución de los muestreos periódicos y chequeos de cuarentenas correspondientes al programa de vigilancia, desde la primera introducción de esta especie en Cuba en 2003 hasta el 2009. Para ello se emplearon técnicas de análisis en fresco, histológicas y de biología molecular. En este período, no se detectó ninguno de los virus de crustáceos que son de declaración obligatoria por la Organización Mundial de la Salud Animal (OIE, de sus siglas en francés): el virus...
Tipo: Journal Contribution Palavras-chave: Viruses; Crustaceans.
Ano: 2011 URL: http://hdl.handle.net/1834/4141
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coordinated research on groundnut of Rosette virus disease Open Agri
D. McDonald.
Palavras-chave: Groundnuts; Viruses; RNA; Grafting; ELISA; Genotypes; Backcrossing; Breeds (animals); Resistance varieties; Scions.
Ano: 1987 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3144
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Coordinated Research on Groundnut Rosette Virus Disease Open Agri
Palavras-chave: Groundnuts; Viruses; RNA; Grafting; ELISA; Genotypes; Backcrossing; Breeds (animals); Resistance varieties; Scions.
Ano: 1988 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4054
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Crop losses in Brazilian cassava varieties induced by the Cassava common mosaic virus Scientia Agricola
Venturini,Marcela Tonini; Araújo,Taylane da Silva; Abreu,Emanuel Felipe Medeiros; Andrade,Eduardo Chumbinho de; Santos,Vanderlei da Silva; Silva,Marcos Roberto da; Oliveira,Eder Jorge de.
ABSTRACT Despite the widespread distribution of the Cassava common mosaic virus (CsCMV) in Brazil, little is known about the losses it causes in yield. The effect of CsCMV on different varieties was evaluated by reference to several agronomic traits. Four field trials were established in 2012/2013 and 2013/2014 using six varieties of cassava. Following mechanical inoculation with CsCMV, the presence of the virus was confirmed using the ELISA assay. The evaluated traits were plant height (PH), dry matter content (DMC), harvest index (HI), aerial part yield (APY), root yield (RoY), and starch yield (StY) in both inoculated and non-inoculated plants. Overall, the presence of the virus contributed little to the reduction in PH, HI, and DMC across the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Viruses; Root yield; Disease.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000600520
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Cultura de tecidos no controle de viroses da bananeira no Brasil. Infoteca-e
SILVA NETO, S. P. da; SILVA, M. S..
2009
Tipo: Documentos (INFOTECA-E) Palavras-chave: Banana; Musa acuminata; Fruta tropical; Doença de planta; Virus; Bananas; Tropical fruits; Plant diseases; Viruses.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/697556
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Depuration centre management. Course notes ArchiMer
O'Carroll, Terence; Boulter, Mark; Seaver, Mary; Masson, Daniel; O'Driscoll, Michael; Roden, Cillian.
The purpose of this course is to train and familiarise people, who are going to build, have just built or are about to modernise a purification plant, in the latest technology available to the industry and also to train people so that they can effectively run a depuration centre. ln general the course aims to : - Give participants practical experience of different systems prior to committing themselves to a particular system. - Enable participants to compare systems. - Provide a minimum training qualification to run an establishment which is essentially a facility to guarantee health and safety of products to the consumer. - Provide an overview from bacteria testing to plant lay out etc. The structure of the course is in modules, morning and...
Tipo: Text Palavras-chave: Shellfish depuration; Purification; Bacteria; Viruses.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00140/25082/23192.pdf
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Determination of the grapevine virome by high-throughput sequencing and grapevine viruses detection in Serra Gaúcha, Brazil. Repositório Alice
FAJARDO, T. V. M.; Bertocchi, A. A.; NICKEL, O..
Among grapevine (Vitis spp.) pathogens, viruses stand out, considering that this fruit plant is broadly susceptible to them and that they cause several diseases, reducing quality and yield of grape production. However, detecting and identifying viral infections in grapevines can be challenging. The objectives of this study were to detect grapevine viral pathogens by high-throughput sequencing (HTS) and identify grapevine viruses associated with plant propagation material from different origins. A comprehensive picture of a vine exhibiting virus-related symptoms was generated. The detected virome included four different pathogens and their variants. In addition, the incidence of seven viral pathogens was determined in samples collected in three vineyards of...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: RT-qPCR; HTS; NGS; Indexing; Survey; Grapevine (Vitis spp); Vitis; Pathogens; Viruses.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1122194
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Development of genomic probes for detection of hepatitis A virus and enteroviruses in shellfish ArchiMer
Apaire, M; Leguyader, F; Besse, B; Billaudel, S.
The development of molecular biology techniques has modified research procedures for certain viruses, particularly hepatitis A virus (HAV) and enteroviruses. Accordingly, we designed cDNA and RNA genomic probes to detect viruses in shellfish in the environment. Better sensitivity was noted with RNA than cDNA probes: only 17/83 shellfish samples were positive with HAV and enterovirus DNA probes, where as 42/83 were positive with HAV and enterovirus RNA probes.
Tipo: Text Palavras-chave: Mollusca; Enterovirus; Hepatitis A virus; Picornaviridae; RNA probes; DNA probes; Seafood; Biology; Sensors; DNA; RNA; Viruses; Detection; Marine molluscs; Shellfish.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1613.pdf
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Discovery and partial characterization of a novel virus, tentatively named Grapevine virgalike virus. Repositório Alice
SILVA, J. M. F.; PEREIRA, B. R. de M.; AI RWAHNÍH, M.; BLAWID, R.; BLAWID, R.; NAGATA, T.; FAJARDO, T. V. M..
The families Bromoviridae and Virgaviridae are composed of viruses with a single-stranded positive sense RNA genome possessing an alpha-like replication complex and a 3'-t-RNA-like structure.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Grapevine virgalike virus; Phylogenetic analysis; High-throughput sequencing (HTS); Bromoviridae; Virgaviridae; Nucleotides; Viruses.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1090655
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Diseases of cultured prawns in Australia ArchiMer
Lester, R; Paynter, J.
Plebejus baculovirus and other MBV-related viruses have been found in Penaeus plebejus, P. monodon and P. merguiensis . They appear highly pathogenic in certain situations currently undefined. We have found Hepatopancreatic Parvo-like Virus (< hpv) in wild P. esculentus and P. merguiensis but not yet in cultured prawns. The amphophilic intranuclear inclusion bodies we find in P. esculentus do not appear to have a viral cause.
Tipo: Text Palavras-chave: Australia Coasts; Penaeidae; Viral diseases; Fungal diseases; Gills; Viruses; Hatcheries; Gill disease.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1458.pdf
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Duplex nested-PCR for detection of small ruminant lentiviruses BJM
Marinho,Rebeca C.; Martins,Gabrielle R.; Souza,Kelma C.; Sousa,Ana Lídia M.; Silva,Sabrina Tainah C.; Nobre,Juliana A.; Teixeira,Maria F.S..
Abstract Small ruminant lentiviruses (SRLV) have high genetic variability which results in different viral strains around the world. This create a challenge to design sensible primers for molecular diagnosis in different regions. This work proposes a protocol of duplex nested-PCR for the precise diagnosis of SRLV. The technique was designed and tested with the control strains CAEV Co and MVV 1514. Then, field strains were submitted to the same protocol of duplex nested-PCR. Blood samples of sheep and goats were tested with AGID and nested PCR with specific primers for pol, gag and LTR. The AGID results showed low detection capacity of positive animals, while the nested PCR demonstrated a greater capacity of virus detection. Results demonstrated that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Standardization; Multiplex; Viruses; CAEV; MVV.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500083
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Efeito na produção e incidência de viroses em híbridos comerciais de milho. Repositório Alice
WAQUIL, J.M.; OLIVEIRA, E.; PINTO, N.F.J.A.; FERNANDES, F.T.; CORREA, L.A..
Quatro ensaios foram conduzidos para se avaliar a incidencia e prejuizos causados por viroses em milho. Observou-se a ocorrencia principalmente de rayado fino e de mosaico comum, causando perdas, respectivamente, de 28,64 e 47,50% no peso de graos. Notou-se variacao de 0 a 100% na incidencia dessa viroses nos hibridos comerciais de milho. Os hibridos mais resistentes ao mosaico comum foram: "C 969", "C 901" and "Agromen 3060" e os mais resistente ao rayado fino foram: "AGX 9332", "AG 5012" e "EXP. 31029 (CAC)".
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Milho; Doenca; Virose; Mosaico comum; Zea mays; Rayado fino; Maize; Disease; Viruses.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/478824
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Enteric viruses in turkey flocks: a historic review Rev. Bras. Ciênc. Avic.
Alavarez,JM; Ferreira,CSA; Ferreira,AJP.
In this review, diagnostic techniques and viral agents involved in enteric diseases affecting turkeys are described. Data from field observations and laboratory researches have been reported in turkey flocks for over 70 years, and several viruses have been identified. After a period of 30 years of inoculation experiments and neutralization studies, adequate visualization of the viruses was achieved using electronic microscopy. During the following years, several studies were then conducted to isolate and classify those viruses using cell-culture, embryo-propagation, serological tests, genome electropherotyping by polyacrylamide gel electrophoresis of double-stranded RNA viruses, and recently, nucleic acid studies. Thus, since the 1990s, the nucleic-acid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Turkey; Enteritis; Viruses; Poults; Diagnosis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300001
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Evaluation of HBV-Like circulation in wild and farm animals from Brazil and Uruguay. Repositório Alice
VIEIRA, Y. R.; PORTILHO, M. M.; OLIVEIRA, F. F.; GUTERRES, A.; SANTOS, D. R. L dos; VILLAR, l. M.; MIRAZO, S.; ARBIZA, J.; DIMACHE, L. A. G.; ALMEIDA, F. Q.; BRANDÃO, M. L.; CORDEIRO, J. L. P.; ROCHA, F. L.; AZEVEDO, F. C.; LEMOS, F. G.; CAMPOS, J. B. V.; MACEDO, G. C.; HERRERA, H. M.; PERES, I. A. H. F. S.; ZIMMERMANN , N. P.; PIOVEZAN, U.; PELLEGRIN, A. O.; PAULA, V. S. de.; PINTO, M. A..
The origin of the hepatitis B virus is a subject of wide deliberation among researchers. As a result, increasing academic interest has focused on the spread of the virus in different animal species. However, the sources of viral infection for many of these animals are unknown since transmission may occur from animal to animal, human to human, animal to human, and human to animal. The aim of this study was to evaluate hepadnavirus circulation in wild and farm animals (including animals raised under wild or free conditions) from different sites in Brazil and Uruguay using serological and molecular tools. A total of 487 domestic wild and farm animals were screened for hepatitis B virus (HBV) serological markers and tested via quantitative and qualitative...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Doença Animal; Vírus; Hepatite; Animal diseases; Viruses; Hepatitis B virus.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1120216
Registros recuperados: 67
Primeira ... 1234 ... Última
 

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