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| Registros recuperados: 47 | |
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| FACCIOLI-MARTINS, P. Y.; SOUZA, V. de; PINHEIRO, R. R.. |
| Resumo: Esta publicação tem por objetivo descrever a história, a composição da Coleção de trabalho de Microrganismos Patogênicos a Caprinos e Ovinos, e de que forma ela tem conservado, caracterizado, documentado e utilizado seus isolados. A coleção foi criada em 2012 e atualmente é composta por 141 cepas bacterianas e seis cepas virais, pertencentes às espécies Corynebacterium pseudotuberculosis, Staphylococcus aureus e ao gênero Lentivirus. Esses isolados são utilizados para produção de antígenos para imunodiagnósticos, em diagnósticos moleculares e na avaliação de resistência a antimicrobianos e ação de anti-sépticos e antimicrobianos. Participa de projetos das coleções institucionais e de gestão da qualidade. [Collection of Goat and Sheep Pathogenic... |
| Tipo: Artigo de divulgação na mídia (INFOTECA-E) |
Palavras-chave: Caracterização; Germplasm bank; Characterization; Diagnosis; Quality; Pathogenic Microorganisms; Caprino; Ovino; Banco de Germoplasma; Conservação; Resistência Genética; Diagnostico; Qualidade; Sheep diseases; Goat diseases; Germplasm conservation; Conservation banks; Genetic resistance; Small ruminants; Brazil. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123793 |
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| COSTA, R. V. da; COTA, L. V.; SILVA, D. D. da; FIGUEIREDO, J. E. F.; MEIRELLES, W. F.; CASELA, C. R.; LANZA, F. E.; ZAMBOLIM, L.; PACCOLA MEIRELLES, L. D.. |
| Mancha-branca-do-milho (MBM), anteriormente conhecida por mancha-de-feosféria (MF), tornou-se uma das doenças mais importantes do Brasil. A incidência e a gravidade da doença MBM têm aumentado significativamente desde os anos 90 e ela pode ser encontrada em quase todas as áreas de cultivo de milho. Neste estudo, as variáveis epidemiológicas associadas com a resistência à doença MBM foram avaliadas com oito híbridos simples, um híbrido duplo, um híbrido triplo e cinco linhagens. As avaliações foram feitas em dois ensaios, usando-se delineamento em blocos casualizados com três repetições, em duas épocas de plantio. A área abaixo da curva de progresso da doença (AACPD) e severidade da doença no final da epidemia (Ymax) foram as variáveis epidemiológicas que... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Doença de planta; Zea mays; Resistência genética; Pantoea ananatis; Genetic resistance; Plant diseases and disorders. |
| Ano: 2013 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/981029 |
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| Barsøe, Sofie; Allal, Francois; Vergnet, Alain; Vandeputte, Marc; Olesen, Niels Jørgen; Schmidt, Jacob Günther; Larsen, Cathrine Agnete; Cuenca, Argelia; Vendramin, Niccolò. |
| Viral Nervous Necrosis (VNN, also called viral encephalo- and retinopathy (VER)), is a widespread disease of marine aquaculture caused by betanodavirus (or nervous necrosis virus - NNV), a segmented positive sense RNA virus, member of the nodaviridae family. VNN affects predominantly marine fish and cause significant losses to the Mediterranean fish farming industry, including the production of European sea bass (Dicentrarchus labrax). Of the four circulating genotypes of betanodavirus, red-spotted grouper NNV (RGNNV) and the reassortant genotype red-spotted grouper/striped jack NNV (RG/SJNNV) are most prevalent in the Mediterranean. Inheritable resistance against VNN has been detected in sea bass, and selective breeding could be a mean to limit this... |
| Tipo: Text |
Palavras-chave: Nervous necrosis virus; Betanodavirus; Viral enchephalo-and retinopathy; Genetic resistance; Host-pathogen interaction; Sea bass; Neurological infection. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00678/79050/81498.pdf |
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| Costa,Rodrigo Véras da; Silva,Dagma Dionísia da; Cota,Luciano Viana; Campos,Leonardo José Motta; Almeida,Rodrigo Estavam Munhoz de; Bernardes,Fernanda Pinheiro. |
| Abstract: The objective of this work was to evaluate the incidence of corn stunt disease and its effects on the grain yield of off-season corn (Zea mays) hybrids in different sowing seasons. The experiment was conducted in three sites in the state of Tocantins, in different sowing seasons, in a randomized complete block design, with 30 hybrids (treatments) and three replicates. Corn stunt disease incidence was assessed at 80 days after emergence, varying between hybrids and sowing seasons, with a marked effect of sowing season. The most resistant hybrids were: MG652 PW, Penta VIP, MG600 PW, NS90 PRO2, LG3040 VIP3, MG580 PW, and Defender VIP. The Fórmula VIP2 hybrid was the most susceptible to corn stunt disease. The incidence of the disease increased in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dalbulus maidis; Zea mays; Genetic resistance; Mollicutes; Phytoplasma; Spiroplasma. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102303 |
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| Pupim Junior,Osmério; Schuster,Ivan; Pinto,Ronald Barth; Pires,Ely; Belot,Jean-Louis; Silvie,Pierre; Chitarra,Luiz Gonzaga; Hoffmann,Lúcia Vieira; Barroso,Paulo. |
| The objective of this work was to determine the inheritance of cotton blue disease resistance by cotton plants. Populations derived from the CD 401 and Delta Opal resistant varieties were evaluated, through a greenhouse test with artificial inoculation by viruliferous aphids. Cotton blue disease resistance is conditioned by one dominant gene, both in CD 401 and Delta Opal varieties. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum; Aphis gossypii; Genetic resistance; Luteoviruses. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000500015 |
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| Godoy,Cláudia Vieira; Seixas,Claudine Dinali Santos; Soares,Rafael Moreira; Marcelino-Guimarães,Franscismar Correa; Meyer,Maurício Conrado; Costamilan,Leila Maria. |
| Abstract: Asian soybean rust, caused by the fungus Phakopsora pachyrhizi, is the most severe disease of the crop and can cause yield losses of up to 90%. The disease was first reported in Brazil in 2001. Epidemics of the disease are common in the country, where the fungus can survive year-round. Regulatory measures to reduce the inoculum between seasons and avoid late-season soybean have been adopted to manage the disease. Disease control has relied mainly on chemical control, but a lower sensibility of the fungus to fungicides has been reported in Brazil. Major-resistance genes have been mapped and incorporated into the cultivars. With the reduced efficacy of the fungicides, the adoption of integrated measures to control the disease will be important for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Phakopsora pachyrhizi; Biotechnology; Chemical control; Genetic resistance; Losses; Management.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500407 |
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| Silva,Stela Dalva Vieira Midlej; Luz,Edna Dora Martins Newman; Pires,José Luis; Yamada,Milton Macoto; Santos Filho,Lindolfo Pereira dos. |
| The objective of this work was to identify genotypes with high general combining ability for resistance to witches'-broom (Moniliophthora perniciosa) in populations formed from a first cycle of recurrent selection. Highly productive and resistant clones from different origins were interbred using the North Carolina II design. The clones SCA 6, CSUL 7, RB 39, CEPEC 89, OC 67, BE 4, EEG 29 and ICS 98 were used as paternal parents, while the maternal ones were NA 33, CCN 10, IMC 67, P 4B, CCN 51, CEPEC 86, SGU 54 and ICS 9. Twenty days after germination, 56 seedlings of each cross (four replicates of 14 seedlings) received the inoculation of a 1-mL suspension with 7.5x10(4 ) basidiospores mL-1. Symptoms were evaluated 60 days after inoculation. Significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Moniliophthora perniciosa; Theobroma cacao; Disease integrate management; Early selection; Genetic resistance. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000700007 |
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| Basso,Marcos Fernando; Pereira,Álvaro Júlio; Pereira,Hermano Monteiro de Barros; Ramos,Humberto Josué de Oliveira; Dantas,Jorge Luiz Loyola; Fontes,Elizabeth Pacheco Batista; Andrade,Eduardo Chumbinho de; Zerbini,Francisco Murilo. |
| The objective of this work was to produce a polyclonal antiserum against the coat protein (CP) of Papaya lethal yellowing virus (PLYV) and to determine its specificity and sensibility in the diagnosis of the virus, as well as to evaluate the genetic resistance to PLYV in papaya (Carica papaya) accessions and to investigate the capacity of the two-spotted spider mite Tetranychus urticae to acquire and transmit PLYV to the plants. Sixty-five papaya accessions were evaluated. For each accession, ten plants were mechanically inoculated using PLYV-infected plant extracts, and three plants were mock inoculated with phosphate buffer alone and used as negative controls. Ninety days after inoculation, newly-emerging systemic leaves were collected from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya; Elisa; Genetic resistance; Plant breeding; PLYV; Two-spotted spider mite.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000200097 |
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| Gravina,Geraldo de Amaral; Sediyama,Carlos Sigueyuki; Martins Filho,Sebastião; Moreira,Maurílio Alves; Barros,Everaldo Gonçalves de. |
| Seven soybean cultivars (Bossier, Cristalina, Davis, Kent, Lincoln, Paraná and Uberaba), with different levels of resistance to Cercospora sojina, were crossed in a diallel design to determine the general (GCA) and specific (SCA) combining abilities relative to the inheritance of the resistance. Race 04 of the fungus was inoculated in the parents and in the 21 F1 hybrids in a greenhouse in a completely randomized design, with 12 replications. The reactions to the disease were evaluated 20 days after the inoculation, always on the most infected leaflet. Both GCA and SCA were significant for all the evaluated characters, being inferred that, for the expression of the characters, the additive, dominant and, possibly, epistatic genic actions were important.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Cercospora sojina; Combining ability; Heterosis; Genetic resistance; Genetic parameters. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000600002 |
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| Ribeiro,Lindinéia Rios; Silva,Sebastião de Oliveira e; Oliveira,Saulo Alves Santos de; Amorim,Edson Perito; Serejo,Janay Almeida Santos; Haddad,Fernando. |
| ABSTRACT Fusarium wilt (syn= Panama disease), caused by Fusarium oxysporum f. sp. cubense (FOC), is one of the most destructive diseases of banana, being genetic resistance the main management strategy for this disease. Since the pathogen is constantly evolving to supplant the genetic resistance, new sources of resistance must be investigated by genetic improvement programs aiming to developing new varieties. The objective of the present study was to identify sources of resistance from the different accessions maintained in the banana active germplasm bank (BAGB) at Embrapa Mandioca e Fruticultura. Forty-one BAGB accessions were evaluated, including 17 diploids, 21 triploids, and two tetraploids. The area under the disease progress curve, disease index,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Panama disease; Varieties; Genetic resistance. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100401 |
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| Silva,Gefferson Thiago Mota de Almeida; Oliveira,Frederico Inácio Costa de; Carvalho,Alexya Vitoria Felix; André,Thais Paz Pinheiro; Silva,Christiana de Fátima Bruce da; Aragão,Fernando Antonio Souza de. |
| ABSTRACT The intensive cultivation of melon, mainly in the Northeast of Brazil, has favored the occurrence of root diseases such as rhizoctonia, caused by the fungus Rhizoctonia solani Kuhn. The use of resistant cultivars is one of the most efficient strategic measures for integrated management of diseases in this crop. It is necessary to use an efficient inoculation method to evaluate rhizoctonia in melon germplasm with the aim of identifying sources of resistance. The objective of this study was to develop an efficient method to inoculate the pathogen to proceed in selection of R. solani resistant melon germplasm. Five experiments were conducted under greenhouse conditions to define the adequate container, growth environment, substrate for inoculum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Rhizoctonia solani; Genetic resistance; Damping off. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000400416 |
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| Leite,Monik Evelin; Dias,Juliana Andrade; Souza,Danuza Araujo de; Alves,Filipe Couto; Pinheiro,Lucas Rezende; Santos,João Bosco dos. |
| ABSTRACT White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, “Carioca” grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S0:1, S0:2 and S0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sclerotinia sclerotiorum; Phaseolus vulgaris; Genetic resistance; Genetic progress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000100071 |
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| Blat,Sally Ferreira; Costa,Cyro Paulino da; Vencovsky,Roland; Sala,Fernando Cesar. |
| The use of fungicides to control powdery mildew in sweet pepper has been ineffective and genetic resistance is the best alternative. Resistance sources identified in Capsicum annuum L. are rare and unsatisfactory. The purpose of this work was to study the inheritance of C. annuum reaction to powdery mildew. Three homozygous powdery mildew resistant parents, HV-12, Chilli and #124 and three susceptible lines, 609, 442 and 428 were used to obtain seven F1's and respectively their generations F2: HV-12 x 609, 442 × HV-12, 428 × HV-12, Chilli × 609, #124 × 609, Chilli × HV-12 and #124 × HV-12. The powdery epidemic was natural using inoculum from highly sporulating susceptible pepper host. Powdery mildew host reaction evaluations were carried out during the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sweet pepper; Powdery mildew; Genetic resistance; Gene action; Allelism. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100008 |
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| Registros recuperados: 47 | |
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