SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Detección, disperción y muestreo en la erradicación del Citrus Tristeza Virus en plantaciones comerciales de cítricos

Ruiz García, Noé.

La dispersión espacio-temporal del Citrus tristeza virus se caracterizó en Tamaulipas de diciembre de 2001 a marzo de 2004, en 11 huertos comerciales de naranja dulce injerta- dos en naranjo agrio. Adicionalmente, se comparó el desempeño de la técnica serológica inmunoimpresión-ELISA con respecto a DAS-ELISA propuesta en la normatividad ofi- cial mexicana de la Campaña Nacional contra CTV. El objetivo fue proporcionar bases epidemiológicas e incorporar criterios de diagnóstico viral en una propuesta de muestreo con fines de erradicación. Inmunoimpresión-ELISA fue tan confiable (97.8 %) como DAS-ELISA en identificar árboles positivos, siendo 54.9% más económica e implicó solo una sexta parte del tiempo de procesado. La detectabilidad en impresiones...

Tipo: Tesis

Palavras-chave: Citrus tristeza virus; Serología; Muestreo; Vectores; Epidemiología; Doctorado; Fitopatología; Fitopatología; Serology; Sampling; Vectors; Epidemiology.

Ano: 2008

URL: http://hdl.handle.net/10521/1348

Progreso temporal y manejo integrado de la moniliais [Moniliophthora roreri (Cif y Par.) Evans et al.] del cacao (Theobroma cacao) en Tabasco, México.

Ruiz García, Noé.

Tipo: Tesis

Palavras-chave: Citrus tristeza virus; Serología; Muestreo; Vectores; Epidemiología Citrus tristeza virus; Serology; Sampling; Vectors; Epidemiology.

Ano: 2012

URL: http://hdl.handle.net/10521/1020

Torres de la Cruz, Magdiel.

El cacao (Theobroma cacao L.) es uno de los principales recursos agrícolas de Tabasco, México. En abril del 2005, se reportó la moniliasis (Moniliophthora roreri) del cacao en Tabasco; para 2007, la enfermedad había invadido todas las regiones productoras del estado, convirtiéndose en la principal limitante parasítica. En la presente investigación se estudió el progreso temporal de la moniliasis en Tabasco, se evaluó al azoxystrobin como agente curativo de M. roreri, y evaluó un programa de manejo integrado. El progreso temporal se obtuvo por estimación del porcentaje de frutos enfermos en tres ritmos productivos en el ciclo de producción 2008-09. M. roreri se identificó morfológica y molecularmente (numero de acceso GenBank: GU108605). El azoxystrobin fue...

Palavras-chave: Epidemiología; Frosty pod rot; Manejo integrado; Control químico; Efecto curativo; Epidemiology; Moniliasis; Integrated crop management; Chemical control; Curative effect; Doctorado; Fitopatología.

Ano: 2010

URL: http://hdl.handle.net/10521/146

Progreso temporal y manejo integrado de la moniliais [Moniliophthora roreri (Cif y Par.) Evans et al.] del cacao (Theobroma cacao) en Tabasco, México.

Torres de la Cruz, Magdiel.

Ano: 2010

URL: http://hdl.handle.net/10521/146

Distribución espacial y factores de riesgo asociados a la leptospirosis bovina en Veracruz, México.

The Mathematical Biology of Human Infections

Cruz Romero, Anabel.

Los objetivos de esta investigación fueron determinar la distribución espacial e identificar los factores de riesgo asociados a la leptospirosis bovina en el estado de Veracruz, México. Se obtuvieron muestras de sangre de 3,454 bovinos de 54 municipios de las regiones Norte, Centro y Sur del estado, de febrero 2008 a diciembre de 2011. Los sueros se analizaron por medio de la técnica de aglutinación microscópica utilizando 12 serovariedades de Leptospira interrogans, se estimaron las seroprevalencias y los factores de riesgo. La seroprevalencia general fue del 3.9%; sin embargo, entre municipios varió de 0 y 44%. La mayoría de las UP con casos positivos se encontraron en la zona centro de Veracruz, y en los municipios de Cuitláhuac, Papantla, Tlacotalpan...

Palavras-chave: Estudio transversal; Bovinos; Serología; Epidemiología; Cross-sectional study; Bovines; Serology; Epidemiology; Agroecosistemas Tropicales; Doctorado.

Ano: 2013

URL: http://hdl.handle.net/10521/2336

Ecology and Society

Nowak, Martin A; Institute for Advanced Study; nowak@ias.edu.

Humans are constant victims of infectious diseases. Biomedical research during this century has led to important insights into the molecular details of immune defense. Yet, many questions relating to disease require a quantitative understanding of the complex systems that arise from the nonlinear interactions between populations of immune cells and infectious agents. Exploration of such questions has lead to a newly emerging field of mathematical biology describing the spread of infectious agents both within and between infected individuals. This essay will discuss simple and complex models of evolution, and the propagation of virus and prion infections. Such models provide new perspectives for our understanding of infectious disease and provide guidelines...

Tipo: Peer-Reviewed Reports

Palavras-chave: CTL response; HIV; Antivirals; Epidemiology; Immune response; Infectious diseases; Mathematical biology; Models of evolution; Prions; Resistance; Treatment; Viruses.

Ano: 1999

Public Health and Epidemiological Considerations For Avian Influenza Risk Mapping and Risk Assessment

Ecology and Society

Dudley, Joseph P.; Joseph P. Dudley, Chief Scientist, Science Applications International Corporation, Modeling and Analysis Division; Research Associate, Institute of Arctic Biology-University of Alaska Fairbanks and Department of Earth Science-University of Alaska Museum; joseph.p.dudley@saic.com.

Tipo: Peer-Reviewed Insight

Palavras-chave: Avian influenza; Biosecurity; Epidemiology; Geographic distribution; Health; Risk assessment; Risk mapping..

Ano: 2008

Spatial distribution of canine Visceral Leishmaniasis in Ilha Solteira, São Paulo, Brazil

REA

Paulan,Silvana de C.; Silva,Hélio R.; Lima,Elizete A. C. de Freitas; Flores,Edílson F.; Tachibana,Vilma M.; Kanda,Cláudia Z.; Noronha Junior,Antonio C. F. de; Dobre,Paulo R..

Visceral Leishmaniasis (VL) is caused by protozoan of genus Leishmania and transmitted by sand flies of genus Lutzomyia, which has been adapted to the peridomicile environment where dogs are their mainly food source, increasing the risk for human cases. In this study, techniques of geoprocessing and spatial statistics were utilized as a contribution to understanding the epidemiological dynamics of VL in the urban area of Ilha Solteira, SP.

Relative frequency and estimated minimal frequency of Lysosomal Storage Diseases in Brazil: Report from a Reference Laboratory

Palavras-chave: Geoprocessing; Sand fly; Epidemiology; Spatial statistics.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400016

Genet. Mol. Biol.

Giugliani,Roberto; Federhen,Andressa; Michelin-Tirelli,Kristiane; Riegel,Mariluce; Burin,Maira.

Abstract Lysosomal storage diseases (LSDs) comprise a heterogeneous group of more than 50 genetic conditions of inborn errors of metabolism (IEM) caused by a defect in lysosomal function. Although there are screening tests for some of these conditions, diagnosis usually depends on specific enzyme assays, which are only available in a few laboratories around the world. A pioneer facility for the diagnosis of IEM and LSDs was established in the South of Brazil in 1982 and has served as a reference service since then. Over the past 34 years, samples from 72,797 patients were referred for investigation of IEM, and 3,211 were confirmed as having an LSD (4.41%, or 1 in 22), with 3,099 of these patients originating from Brazil. The rate of diagnosis has increased...

Molecular variability in the maize grey leaf spot pathogens in Brazil

Palavras-chave: Lysosomal storage diseases; Epidemiology; Reference center; Biochemical genetics; Brazil.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100031

Genet. Mol. Biol.

Brunelli,Kátia R.; Dunkle,Larry D.; Sobrinho,Cândido A.; Fazza,Ana C.; Camargo,Luis E. A..

Isolates of Cercospora species from leaves displaying symptoms of grey leaf spot were collected in maize-producing areas of south-central Brazil in 2001 and 2002. Restriction digests of the internal transcribed spacer region of rDNA detected the presence of the same two Cercospora species described on maize in the United States, namely C. zeae-maydis and the recently described species, C. zeina . Genetic variability among isolates was assessed by analysing 104 amplified fragment length polymorphism loci. Cluster analysis confirmed the genetic separation of isolates into two species with a mean similarity of 35%. Similarity levels within species were high, averaging 93% and 92% among isolates of C. zeae-maydis and C. zeina , respectively. The mean...

Palavras-chave: Cercospora zeae-maydis; Cercospora zeina; Epidemiology.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500022

Septoria leaf spot in organic tomatoes under diverse irrigation systems and water management strategies

Horticultura Brasileira

Cabral,Ricardo N; Marouelli,Waldir A; Lage,Daniel AC; Café-Filho,Adalberto C.

The objective of this study was to analyze the temporal progress of septoria leaf spot of tomato, caused by Septoria lycopersici, in different irrigation systems. The experiment was carried out in an organic farming system, in a randomized block design with three replicates. Six irrigation systems were evaluated: GO1L: one drip-line per row of plants; GO2L: two drip-lines; SU: furrow; MIsub: microsprinkler below plant canopy; MIalta: microsprinkler above plant canopy; AS: overhead sprinkler irrigation. Water management strategies varied with soil moisture tensions. Irrigation by drip systems was carried out when soil water tensions reached 15-30 kPa (high moisture), whereas for SU the trigger soil tension was 30-60 kPa (moderate moisture). All other...

Diagrammatic scale to assess downy mildew severity in melon

Palavras-chave: Solanum lycopersicum; Septoria lycopersici; Organic agriculture; Fresh-market tomato; Epidemiology.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000300009

Horticultura Brasileira

Michereff,Sami J; Noronha,Marissônia A; Lima,Gaus SA; Albert,Ígor CL; Melo,Edilaine A; Gusmão,Luciana O.

The downy mildew, caused by Pseudoperonospora cubensis, is an important melon disease in Northeast Brazil. Considering the lack of standard methods for its assessment, a diagrammatic scale was developed with 2, 4, 8, 16, 32, 64, 82, and 96% of affected leaf area. The scale was then checked for its accuracy, precision, and reproducibility in estimating downy mildew severity. The diagrammatic scale was validated by eight disease raters; using 50 leaves with different severity levels, previously measured using the software Assess®. Two evaluations were performed on the same set of leaves, but in a different sequence order, by the same raters, within a 15-day interval. The accuracy and precision of each rater was determined by simple linear regression between...

Survey and prevalence of species causing Alternaria leaf spots on brassica species in Pernambuco

Palavras-chave: Cucumis melo; Pseudoperonospora cubensis; Foliar disease; Epidemiology; Phytopatometry.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000100015

Horticultura Brasileira

Michereff,Sami J; Noronha,Marissônia A; Xavier Filha,Maria S; Câmara,Marcos PS; Reis,Ailton.

Brassicaceae family comprises plant species that are very important as vegetable crops, such as the species complex Brassica oleracea and Brassica rapa. Alternaria brassicicola and A. brassicae are among the most important pathogens of Brassicaceae causing Alternaria leaf spot disease. The occurrence and prevalence of Alternaria species causing leaf spots in brassica crops in Pernambuco was acessed, as well as the existence of a possible preference by vegetable host for these pathogens. Twenty-eight fields were surveyed in the Agreste region of Pernambuco state, in the 2005 and 2006 growing seasons. In each year, 10 Chinese cabbage, six cabbage, six cauliflower and six broccoli fields were visited. In each field, 50 leaves showing at least five lesions...

Epidemiologia da vassoura-de-bruxa (Crinipellis perniciosa) do cupuaçuzeiro.

Palavras-chave: Brassica oleracea; Brassica rapa; Alternaria brassicae; A. brassicicola; Etiology; Epidemiology.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200027

GASPAROTTO, L.; PEREIRA, J. C. R.; COSTA, M. M. da; PEREIRA, M. C. N..

Determinacao dos periodos mais favoraveis a ocorrencia da vassoura-de-bruxa, envolvendo a fenologia do hospedeiro e as condicoes climaticas de Manaus-AM (Brasil).

Tipo: Outras publicações técnicas (INFOTECA-E)

Palavras-chave: Vassoura-de-bruxa; Brasil; Amazonas; Manaus; Fungal diseases.; Crinipellis Perniciosa; Cupuaçu; Fenologia; Doença; Epidemiologia; Folha; Fungo; Hospedeiro; Theobroma Grandiflorum.; Epidemiology; Leaves; Hosts; Phenology..

Ano: 1999

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669823

Epidemiologia e controle de helmintos gastrintestinais em bovinos de corte nos Cerrados.

BIANCHIN, I.; MELO, H. J. H. de.

Apresenta-se uma revisão dos conhecimentos sobre a epidemiologia e controle de helmintos gastrintestinais em bovinos de corte na região de cerrado. Os tópicos discutidos incluem as prevalências das espécies, ciclo evolutivo, larvas infectantes nas pastagens, dados de ovos por grama de fezes (OPG), dinâmica das populações de helmintos, hipobiose, interação, dulcificações estratégicas e uso de anti-helmínticos em animais em confinamento.

Tipo: Circular Técnica (INFOTECA-E)

Palavras-chave: Bovino de corte; Controle; Sanidade; Calf; Control; Health.; Bezerro; Cerrado; Epidemiologia.; Beef cattle; Epidemiology; Helminths..

Ano: 1985

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316900

Brucelose e tuberculose bovina: epidemiologia, controle e diagnóstico.

ALMEIDA, R. F. C. de; SOARES, C. O.; ARAÚJO, F. R. de.

Cap. 1: Brucelose bovina: epidemiologia e controle. Cap. 2: Brucelose bovina: diagnóstico. Cap. 3: Tuberculose bovina: epidemiologia e controle. Cap. 4: Tiberculose bovina: diagnóstico.

Tipo: Livro técnico (INFOTECA-E)

Palavras-chave: Controle; Diagnosis; Control.; Bovino; Brucelose; Diagnostico; Doença Animal; Epidemiologia; Sanidade Animal; Tuberculose.; Animal health; Animal diseases; Epidemiology; Brucellosis; Cattle; Tuberculosis..

Ano: 2004

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325789

Distribuição e severidade da malformação da mangueira no cerrado do Brasil Central.

ANJOS, J. de R. N. dos; CHARCHAR, M. J. d'A.; PINTO, A. C. de Q..

bitstream/CPAC-2009/24680/1/doc_53.pdf

Tipo: Documentos (INFOTECA-E)

Palavras-chave: Fusarium sacchari; Controle; Plant disease; Mango; Patogenicity.; Doença de Planta; Epidemiologia; Fungo; Malformação; Manga; Mangifera Indica; Patogenicidade.; Epidemiology; Disease control; Fungi..

Ano: 2002

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559182

Epidemiologia dos nematodeos gastrintestinais em bovinos de corte nos cerrados e o controle estrategico no Brasil.

Processo especializado de descoberta de conhecimento em bases de dados para a modelagem de doenças de plantas - versão 1.0.

BIANCHIN, I..

bitstream/item/104625/1/Epidemiologia-dos-nematodeos.pdf

Tipo: Circular Técnica (INFOTECA-E)

Palavras-chave: Bovino de corte; Nematodeo gastrintestinal; Controle; Aspecto economico; Rio Grande do Sul; Santa Catarina; Brasil; Brazilian savannas; Economic situation; Therapy.; Cerrado; Epidemiologia; Pesquisa; Tratamento.; Pantanal; Beef cattle; Epidemiology; Brazil; Nematode control; Research..

Ano: 1996

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316836