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| Registros recuperados : 81 | |
| 41. |  | BERTAGNOLLI, P. F.; COSTAMILAN, L. M.; PITOL, C.; BIAZUS, L.; DALLAGNOL, L. C. Melhoramento de soja na Embrapa Trigo, safra agrícola 2008/09. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO SUL, 37., 2009, Porto Alegre. Programa e resumos... Porto Alegre: UFRGS, 2009. p. 53. 1 CD-ROM. RPS022.pdf| Biblioteca(s): Embrapa Trigo. |
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| 45. | | BERTAGNOLLI, P. F.; COSTAMILAN, L. M.; COLUSSI, G.; DOTTO, S. R.; PITOL, C. Avaliação de linhagens de soja da Embrapa Trigo, ambientes e ensaios, safra agrícola 2007/2008. In: COSTAMILAN, L. M.; BERTAGNOLLI, P. F. (Org.). Soja: resultados de pesquisa 2007/2008. Passo Fundo: Embrapa Trigo, 2008. p. 29-36. (Embrapa Trigo. Documentos, 86).| Biblioteca(s): Embrapa Trigo. |
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| 46. | | BERTAGNOLLI, P. F.; COSTAMILAN, L. M.; COLLUSSI, G.; DOTTO, S. R.; PITOL, C. Avaliação de linhagens de soja da Embrapa Trigo, locais e ensaios, safra 2007/2008: [resumo]. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO SUL, 36., 2008, Porto Alegre. Ata e resumos... Porto Alegre: Fepagro, 2008. p. 36.| Biblioteca(s): Embrapa Trigo. |
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| 49. | | STAUT, L. A.; SOARES SOBRINHO, J.; ARIAS, S. M. S.; MARTINS, C. de S.; PITOL, C. Competição de cultivares de trigo na Região Sul do Mato Grosso do Sul. In: REUNIÃO DA COMISSÃO CENTRO-SUL-BRASILEIRA DE PESQUISA DE TRIGO, 9., 1993, Dourados. Resultados de pesquisa com trigo e triticale - 1992. Dourados: EMBRAPA-CPAO, 1995. p. 47-71. (EMBRAPA-CPAO. Documentos, 1). Projeto 004.87.016-8 - Competição de cultivares de trigo na Região Sul do Mato Grosso do Sul.| Biblioteca(s): Embrapa Agropecuária Oeste; Embrapa Cerrados; Embrapa Trigo. |
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| 51. | | GOMES, E. L.; OLIVEIRA, E. F. de; OLIVEIRA, M. A. R.; PITOL, C.; VICENTE, D. Extensao de recomendacao da cultivar de soja CD 205 para a regiao sul do estado do Mato Grosso do Sul. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 22., 2000, Cuiaba, MT. Resumos. Cuiaba: Embrapa Soja, 2000. p.103. (Embrapa Soja. Documentos, 144).| Biblioteca(s): Embrapa Cerrados. |
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| 52. | | SALTON, J. C.; DAMALIA, L.; PITOL, C.; XIMENES, A. C. A. Sistema Plantio Direto, 35 anos contribuindo com a agricultura de Mato Grosso do Sul. In: ENCONTRO NACIONAL DE PLANTIO DIRETO NA PALHA, 13., 2012, Passo Fundo. Sistema Plantio Direto, em constante evolução. Ponta Grossa, PR: FEBRAPDP, 2012. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 53. | | LIMA, G. J. M. M. de; KLEIN, C. H.; PITOL, C.; SANGOI, S.; SCHMIDT, A.; CANZIANE FILHO, N. J. Oleo e proteína bruta de híbridos comerciais de milho testados em Maraju, MS, na safrinha de 2003. Concórdia: EMBRAPA-CNPSA, 2003 4 (EMBRAPA-CNPSA. Comunicado técnico, 345)| Biblioteca(s): Embrapa Suínos e Aves. |
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| 55. | | CALEGARI, A.; HERNANI, L. C.; PITOL, C.; PRIMAVESI, O. M. A. S. P. R.; RESCK, D. V. S. Manejo do material orgânico. In: SALON, J.C.; HERNANI, L.C.; FONTES, C.Z. (Org.). Sistema de Plantio direto: O produtor pergunta, a Embrapa responde. Brasilia : Embrapa-SPI/Dourados : Embrapa agropecuária Oeste, 1998. (Coleção 500 Perguntas 500 Respostas)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 56. | | BERTAGNOLLI, P. F.; COSTAMILAN, L. M.; VARGAS, L.; PITOL, C.; ROSINHA, R. C.; SARTORI, J. F.; SOMMER, V.; BIAZUS, L. Avaliação de linhagens de soja da Embrapa Trigo, locais e ensaios, safra agrícola 2009/10. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO SUL, 38., 2010, Cruz Alta. Atas e resumos... Cruz Alta: FUNDACEP FECOTRIGO, 2010. p. 30. 1 CD ROM.| Biblioteca(s): Embrapa Trigo. |
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| 57. | | BERTAGNOLLI, P. F.; COSTAMILAN, L. M.; VARGAS, L.; PITOL, C.; ROSINHA, R. C.; SARTORI, J. F.; SOMMER, V.; BIAZUS, L. Avaliação de linhagens de soja da Embrapa Trigo, safra agrícola 2009/2010. In: COSTAMILAN, L. M.; BERTAGNOLLI, P. F. (Org.). Soja: resultados de pesquisa 2009/2010. Passo Fundo: Embrapa Trigo, 2010. p. 31-40. (Embrapa Trigo. Documentos, 102).| Biblioteca(s): Embrapa Trigo. |
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| 59. | | BAZONI, R.; COSTA, C. A.; ARF, O.; MORAIS, O. P. de; SANTANA, E. P.; MOURA NETO, F. P.; PITOL, C. Recomendação de cultivares de arroz de sequeiro para o ano agrícola 1995/96, em Mato Grosso do Sul. Campo Grande, MS: EMPAER-MS, 1995 5 p. (EMPAER-MS. Comunicado técnico, 17).| Biblioteca(s): Embrapa Agrobiologia; Embrapa Agroindústria Tropical; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Roraima. |
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| 60. | | HARADA, A.; PITOL, C.; VICENTE, D.; GOMES, E. L.; OLIVEIRA, E. F.; OLIVEIRA, M. A. R. de. Extensao de recomendacao da cultivar de soja CD 202 para a regiao do sul do estado de Mato Grosso do Sul. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 21., 1999, Dourados, MS. Resumos. Dourados: Embrapa Agropecuaria Oeste / Londrina: Embrapa Soja, 1999. p.107. (Embrapa Agropecuaria Oeste. Documentos, 7; Embrapa Soja. Documentos, 134).| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 81 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
27/07/2023 |
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Data da última atualização: |
27/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ASCARI, J. P.; CAZÓN, L. I.; RAHNAMA, M.; LAMOUR, K.; FERNANDES, J. M. C.; FARMAN, M.; DEL PONTE, E. |
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Afiliação: |
JOÃO PAULO ASCARI, Universidade Federal de Viçosa; LUIS IGNACIO CAZÓN, Universidade Federal de Viçosa; MOSTAFA RAHNAMA, Tennessee Tech University; KURT LAMOUR, University of Tennessee; JOSE MAURICIO CUNHA FERNANDES, CNPT; MARK FARMAN, University of Kentucky; EMERSON DEL PONTE, Universidade Federal de Viçosa. |
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Título: |
Pyricularia are mostly host-specialized with limited reciprocal cross-infection between wheat and endemic grasses in Minas Gerais, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Phytopathology, 3 jul. 2023. Online ahead of print. |
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DOI: |
https://doi.org/10.1094/PHYTO-01-23-0024-R |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Wheat blast, caused by Pyricularia oryzae Triticum (PoT), is an emerging threat to global wheat production. Current understanding of the population biology of the pathogen and epidemiology of the disease has been based on phylogenomic studies that compared the wheat blast pathogen with isolates collected from grasses that were invasive to Brazilian wheat fields. In this study, we performed a comprehensive sampling of blast lesions in wheat crops and endemic grasses found in and away from wheat fields in Minas Gerais. A total 1,368 diseased samples were collected (976 leaves of wheat and grasses and 392 wheat heads) which yielded a working collection of 564 Pyricularia isolates. We show that, contrary to earlier implications, PoT was rarely found on endemic grasses and, conversely, members of grass-adapted lineages were rarely found on wheat. Instead, most lineages were host-specialized with constituent isolates usually grouping according to their host-of-origin. With regard to the dominant role proposed for signalgrass in wheat blast epidemiology, we found only one PoT member in 67 isolates collected from signalgrass grown away from wheat fields, and only three members of Urochloa-adapted lineages among hundreds of isolates from wheat. Cross-inoculation assays on wheat and a signalgrass used in pastures (U. brizantha) suggested that the limited cross-infection observed in the field may be due to innate compatibility differences. Whether or not the observed level of cross-infection would be sufficient to provide an inoculum reservoir, or serve as a bridge between wheat growing regions, is questionable and, therefore, deserves further investigation. MenosAbstract: Wheat blast, caused by Pyricularia oryzae Triticum (PoT), is an emerging threat to global wheat production. Current understanding of the population biology of the pathogen and epidemiology of the disease has been based on phylogenomic studies that compared the wheat blast pathogen with isolates collected from grasses that were invasive to Brazilian wheat fields. In this study, we performed a comprehensive sampling of blast lesions in wheat crops and endemic grasses found in and away from wheat fields in Minas Gerais. A total 1,368 diseased samples were collected (976 leaves of wheat and grasses and 392 wheat heads) which yielded a working collection of 564 Pyricularia isolates. We show that, contrary to earlier implications, PoT was rarely found on endemic grasses and, conversely, members of grass-adapted lineages were rarely found on wheat. Instead, most lineages were host-specialized with constituent isolates usually grouping according to their host-of-origin. With regard to the dominant role proposed for signalgrass in wheat blast epidemiology, we found only one PoT member in 67 isolates collected from signalgrass grown away from wheat fields, and only three members of Urochloa-adapted lineages among hundreds of isolates from wheat. Cross-inoculation assays on wheat and a signalgrass used in pastures (U. brizantha) suggested that the limited cross-infection observed in the field may be due to innate compatibility differences. Whether or not the observed level of... Mostrar Tudo |
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Palavras-Chave: |
Biologia de Populações; Fungal Pathogens; Gramíneas endêmicas; Patógenos fúngicos; Population Biology. |
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Thesagro: |
Epidemiologia; Trigo. |
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Thesaurus NAL: |
Epidemiology; Pyricularia; Wheat. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155321/1/PYRICULARIA-ARE-MOSTLY-HOST.pdf
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Marc: |
LEADER 02678naa a2200325 a 4500
001 2155321
005 2023-07-27
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1094/PHYTO-01-23-0024-R$2DOI
100 1 $aASCARI, J. P.
245 $aPyricularia are mostly host-specialized with limited reciprocal cross-infection between wheat and endemic grasses in Minas Gerais, Brazil.$h[electronic resource]
260 $c2023
520 $aAbstract: Wheat blast, caused by Pyricularia oryzae Triticum (PoT), is an emerging threat to global wheat production. Current understanding of the population biology of the pathogen and epidemiology of the disease has been based on phylogenomic studies that compared the wheat blast pathogen with isolates collected from grasses that were invasive to Brazilian wheat fields. In this study, we performed a comprehensive sampling of blast lesions in wheat crops and endemic grasses found in and away from wheat fields in Minas Gerais. A total 1,368 diseased samples were collected (976 leaves of wheat and grasses and 392 wheat heads) which yielded a working collection of 564 Pyricularia isolates. We show that, contrary to earlier implications, PoT was rarely found on endemic grasses and, conversely, members of grass-adapted lineages were rarely found on wheat. Instead, most lineages were host-specialized with constituent isolates usually grouping according to their host-of-origin. With regard to the dominant role proposed for signalgrass in wheat blast epidemiology, we found only one PoT member in 67 isolates collected from signalgrass grown away from wheat fields, and only three members of Urochloa-adapted lineages among hundreds of isolates from wheat. Cross-inoculation assays on wheat and a signalgrass used in pastures (U. brizantha) suggested that the limited cross-infection observed in the field may be due to innate compatibility differences. Whether or not the observed level of cross-infection would be sufficient to provide an inoculum reservoir, or serve as a bridge between wheat growing regions, is questionable and, therefore, deserves further investigation.
650 $aEpidemiology
650 $aPyricularia
650 $aWheat
650 $aEpidemiologia
650 $aTrigo
653 $aBiologia de Populações
653 $aFungal Pathogens
653 $aGramíneas endêmicas
653 $aPatógenos fúngicos
653 $aPopulation Biology
700 1 $aCAZÓN, L. I.
700 1 $aRAHNAMA, M.
700 1 $aLAMOUR, K.
700 1 $aFERNANDES, J. M. C.
700 1 $aFARMAN, M.
700 1 $aDEL PONTE, E.
773 $tPhytopathology, 3 jul. 2023. Online ahead of print.
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