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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
08/02/2008 |
Data da última atualização: |
16/08/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DITA, M. A.; BROMMONSCHENKEL, S. H.; MATSUOKA, K.; MIZUBUTI, E. S. G. |
Afiliação: |
Miguel Angel Dita, CNPMF; S. H. Brommonschekel, UFV; K. Matsuoka, UFV; E. S. G. Mizubuti, UFV. |
Título: |
Histopathological study of the Alternaria solani infection process in potato cultivars with different levels of early blight resistance. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Journal Phytopathology, Berlin, n. 155, p. 462-469, 2007. |
Idioma: |
Inglês |
Conteúdo: |
Histopathological analyses of the infection process of Alternaria solani were accomplished in three potato cultivars with different levels of early blight resistance. Leaflets of Aracy (resistant), Delta (moderately resistant) and Bintje (susceptible) cultivars were inoculated at the beginning of the flowering stage. In order to study the effect of leaf age, leaf samples were collected separately, in the lower, middle and upper third of the plants. Conidia germination, appressoria formation, penetration and number of penetration sites exhibiting hypersensitive response (HR) were qualitatively and quantitatively assessed at 6, 12, 24, 48 and 72 h after inoculation. Penetration occurred most frequently through the junctions of the epidermal cells. Penetrations through stomata were rarely observed. There was no association between the events and the resistance levels, except for the number of penetration sites showing HR that was highest in Aracy, intermediate in Delta and lowest in Bintje. Similarly, the number of sites with HR was the only event associated with the leaf age. Regardless of cultivar resistance levels, the number of the penetration sites with HR was higher in leaves in the upper part of the plant. These results suggest that HR may be one of the mechanisms associated with age-related and genetic resistance to early blight in potato. |
Palavras-Chave: |
Disease. |
Thesaurus Nal: |
histopathology. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/654595/1/Alternaria-solani-infection-process-in-potato.pdf
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Marc: |
LEADER 01940naa a2200181 a 4500 001 1654595 005 2022-08-16 008 2007 bl uuuu u00u1 u #d 100 1 $aDITA, M. A. 245 $aHistopathological study of the Alternaria solani infection process in potato cultivars with different levels of early blight resistance. 260 $c2007 520 $aHistopathological analyses of the infection process of Alternaria solani were accomplished in three potato cultivars with different levels of early blight resistance. Leaflets of Aracy (resistant), Delta (moderately resistant) and Bintje (susceptible) cultivars were inoculated at the beginning of the flowering stage. In order to study the effect of leaf age, leaf samples were collected separately, in the lower, middle and upper third of the plants. Conidia germination, appressoria formation, penetration and number of penetration sites exhibiting hypersensitive response (HR) were qualitatively and quantitatively assessed at 6, 12, 24, 48 and 72 h after inoculation. Penetration occurred most frequently through the junctions of the epidermal cells. Penetrations through stomata were rarely observed. There was no association between the events and the resistance levels, except for the number of penetration sites showing HR that was highest in Aracy, intermediate in Delta and lowest in Bintje. Similarly, the number of sites with HR was the only event associated with the leaf age. Regardless of cultivar resistance levels, the number of the penetration sites with HR was higher in leaves in the upper part of the plant. These results suggest that HR may be one of the mechanisms associated with age-related and genetic resistance to early blight in potato. 650 $ahistopathology 653 $aDisease 700 1 $aBROMMONSCHENKEL, S. H. 700 1 $aMATSUOKA, K. 700 1 $aMIZUBUTI, E. S. G. 773 $tJournal Phytopathology, Berlin$gn. 155, p. 462-469, 2007.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca(s): |
Embrapa Agroenergia. |
Data corrente: |
15/10/2018 |
Data da última atualização: |
15/10/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PEREIRA, M. B.; NOGUEIRA, B. L.; RODRIGUES, D. de S.; MONTANO, I. D. C.; GALEANO SUAREZ, C. A. |
Afiliação: |
MARIANA BISINOTTO PEREIRA; BRUNO LEMOS NOGUEIRA; DASCIANA DE SOUSA RODRIGUES, CNPAE; INTI DORACI CAVALCANTI MONTANO; CARLOS ALBERTO GALEANO SUAREZ. |
Título: |
Imobilização sequencial de enzimas celulolíticas. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: ENCONTRO DE PESQUISA E INOVAÇÃO DA EMBRAPA AGROENERGIA, 5., 2018, Brasília, DF. Anais ... Brasília, DF: Embrapa Agroenergia, 2018. |
Páginas: |
p. 41. |
Idioma: |
Português |
Palavras-Chave: |
Celulases; Imobilização. |
Thesagro: |
Hidrolise. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184365/1/EnPI-2018-30.pdf
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Marc: |
LEADER 00645nam a2200193 a 4500 001 2097409 005 2018-10-15 008 2018 bl uuuu u00u1 u #d 100 1 $aPEREIRA, M. B. 245 $aImobilização sequencial de enzimas celulolíticas.$h[electronic resource] 260 $aIn: ENCONTRO DE PESQUISA E INOVAÇÃO DA EMBRAPA AGROENERGIA, 5., 2018, Brasília, DF. Anais ... Brasília, DF: Embrapa Agroenergia$c2018 300 $ap. 41. 650 $aHidrolise 653 $aCelulases 653 $aImobilização 700 1 $aNOGUEIRA, B. L. 700 1 $aRODRIGUES, D. de S. 700 1 $aMONTANO, I. D. C. 700 1 $aGALEANO SUAREZ, C. A.
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