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Registros recuperados : 6 | |
2. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SILVA, G. B. P.; CHAVES, M. S.; CONSOLI, L.; CHAVES, A. L. S.; MARTINELLI J. A. Microfenótipos e proteínas associados à expressão da resistência durável à ferrugem da folha do trigo. In: MOSTRA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA TRIGO, 8.; MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 5., 2013, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2013. p. 55. Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel. Biblioteca(s): Embrapa Trigo. |
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3. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ÁVILA, M. R. de; SANTOS, T. N. dos; SILVA, G. B. P. da; DALL'AGNOL, M.; MARTINELLI, J. A.; KÖPP, M. M. Agronomic production and evaluation of severity of Curvularia geniculata on Medicago sativa cv. Crioula in Southern Brazil. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 8., 2015, Goiânia. O melhoramento de plantas, o futuro da agricultura e a soberania nacional: anais. Goiânia: UFG: SBMP, 2015. Biblioteca(s): Embrapa Pecuária Sul. |
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4. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BRAMMER, S. P.; BOYD, L. A.; CHAVES, M. S.; MARTINELLI, J. A.; SCAGLIUSI, S. M. M.; CASASSOLA, A.; SILVA, G. B. P.; EREFUL, N. Genetics of leaf rust resistance in the Brazilian wheat cultivar Toropi. Journal of Basic & Applied Genetics, Buenos Aires, v. 27, n. 1, p. 61, 2016. Suppl. Edição dos Resumos do XVI Congreso Latinoamericano de Genética, IV Congreso de la Sociedad Uruguaya de Genética, XLIX Reunión Anual de la Sociedad de Genética de Chile, XLV Congreso Argentino de Genética, Montevideo, 2016. Biblioteca(s): Embrapa Trigo. |
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6. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ÁVILA, M. R.; DALL'AGNOL, M.; MARTINELLI, J. A.; SILVA, G. B. P. da; SANTOS, T. N. dos; MOTTA, E. A.; GARCIA, L. S.; GRAMINHO, L. A.; BREMM, C.; KOPP, M. M. Selection of alfalfa for resistance to the foliar pathogen Curvularia geniculata in the field. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2016. Biblioteca(s): Embrapa Pecuária Sul. |
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Registros recuperados : 6 | |
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Trigo. |
Data corrente: |
17/02/2023 |
Data da última atualização: |
27/02/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
CHAVES, M. S.; ANTUNES, M. B.; SILVA, G. B. P. da; GRAICHEN, F. A. S.; TORRES, G. A. M.; MARTINELLI, J. A. |
Afiliação: |
MARCIA SOARES CHAVES, CPACT; MARCIELE BARBIERI ANTUNES, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; GERARDA BEATRIZ PINTO DA SILVA, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; FELIPE ANDRÉ SGANZERLA GRAICHEN, UNIVERSIDADE ESTADUAL DE MATO GROSSO DO SUL; GISELE ABIGAIL MONTAN TORRES, CNPT; JOSÉ ANTÔNIO MARTINELLI, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL. |
Título: |
Pre and post stage of infection of Magnaporthe oryzae Oryza in wheat leaves with different resistance levels. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 53, p. 1091-1100, 2022. |
DOI: |
https://doi.org/10.1007/s42770-022-00749-7 |
Idioma: |
Inglês |
Notas: |
Online first 12 April 2022. |
Conteúdo: |
Blast fungus (Magnaporthe oryzae B.C. Couch) is an imminent threat to global food security because it causes serious yield losses in rice (Oryza sativa L.) and wheat (Triticum aestivum L.). The investigation of infection processes in resistant and susceptible varieties, as well as the cellular responses involved in resistance, can help us to better understand the process of interaction of the M. oryzae-Poaceae pathosystems. Thus, the objectives of this study were to evaluate the processes of pre-and post-infection of M. oryzae in leaves of wheat varieties with diferent levels of resistance. The percentage of germinated conidia, appressorium formed, tissue penetration and colonization, and the reaction of leaf tissue to infection were evaluated. A decrease was observed in the percentage of germinated conidia, appressorium formation, tissue penetration and colonization, especially in the tissues of resistant varieties, in addition to an increase in the plant?s response to infection, with cell wall reinforcement, cell death, and autofuorescent cytoplasm aggregation. Nevertheless, our data produced a diferent temporal perspective regarding the expression of the known types of resistance. We found that, for a single genotype, recognition can start as early as 6 h after inoculation and continue to evolve until very late during the infection cycle, culminating in cell death. The combined and overlapping pre- and post-haustorial resistance mechanisms were sufcient to prevent disease symptoms, with a few punctual lesions observed in one of the resistant varieties (BR 18) and no visible symptoms in the other two (Ônix or BRS229) as opposed to susceptible variety. MenosBlast fungus (Magnaporthe oryzae B.C. Couch) is an imminent threat to global food security because it causes serious yield losses in rice (Oryza sativa L.) and wheat (Triticum aestivum L.). The investigation of infection processes in resistant and susceptible varieties, as well as the cellular responses involved in resistance, can help us to better understand the process of interaction of the M. oryzae-Poaceae pathosystems. Thus, the objectives of this study were to evaluate the processes of pre-and post-infection of M. oryzae in leaves of wheat varieties with diferent levels of resistance. The percentage of germinated conidia, appressorium formed, tissue penetration and colonization, and the reaction of leaf tissue to infection were evaluated. A decrease was observed in the percentage of germinated conidia, appressorium formation, tissue penetration and colonization, especially in the tissues of resistant varieties, in addition to an increase in the plant?s response to infection, with cell wall reinforcement, cell death, and autofuorescent cytoplasm aggregation. Nevertheless, our data produced a diferent temporal perspective regarding the expression of the known types of resistance. We found that, for a single genotype, recognition can start as early as 6 h after inoculation and continue to evolve until very late during the infection cycle, culminating in cell death. The combined and overlapping pre- and post-haustorial resistance mechanisms were sufcient to prevent disease... Mostrar Tudo |
Thesagro: |
Arroz; Brusone; Oryza Sativa; Trigo; Triticum Aestivum. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02506naa a2200265 a 4500 001 2151852 005 2023-02-27 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s42770-022-00749-7$2DOI 100 1 $aCHAVES, M. S. 245 $aPre and post stage of infection of Magnaporthe oryzae Oryza in wheat leaves with different resistance levels.$h[electronic resource] 260 $c2022 500 $aOnline first 12 April 2022. 520 $aBlast fungus (Magnaporthe oryzae B.C. Couch) is an imminent threat to global food security because it causes serious yield losses in rice (Oryza sativa L.) and wheat (Triticum aestivum L.). The investigation of infection processes in resistant and susceptible varieties, as well as the cellular responses involved in resistance, can help us to better understand the process of interaction of the M. oryzae-Poaceae pathosystems. Thus, the objectives of this study were to evaluate the processes of pre-and post-infection of M. oryzae in leaves of wheat varieties with diferent levels of resistance. The percentage of germinated conidia, appressorium formed, tissue penetration and colonization, and the reaction of leaf tissue to infection were evaluated. A decrease was observed in the percentage of germinated conidia, appressorium formation, tissue penetration and colonization, especially in the tissues of resistant varieties, in addition to an increase in the plant?s response to infection, with cell wall reinforcement, cell death, and autofuorescent cytoplasm aggregation. Nevertheless, our data produced a diferent temporal perspective regarding the expression of the known types of resistance. We found that, for a single genotype, recognition can start as early as 6 h after inoculation and continue to evolve until very late during the infection cycle, culminating in cell death. The combined and overlapping pre- and post-haustorial resistance mechanisms were sufcient to prevent disease symptoms, with a few punctual lesions observed in one of the resistant varieties (BR 18) and no visible symptoms in the other two (Ônix or BRS229) as opposed to susceptible variety. 650 $aArroz 650 $aBrusone 650 $aOryza Sativa 650 $aTrigo 650 $aTriticum Aestivum 700 1 $aANTUNES, M. B. 700 1 $aSILVA, G. B. P. da 700 1 $aGRAICHEN, F. A. S. 700 1 $aTORRES, G. A. M. 700 1 $aMARTINELLI, J. A. 773 $tBrazilian Journal of Microbiology$gv. 53, p. 1091-1100, 2022.
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