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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/06/1999 |
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Data da última atualização: |
14/06/2018 |
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Autoria: |
PASCHOLATI, S. F. |
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Afiliação: |
SERGIO FLORENTINO PASCHOLATI. |
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Título: |
Induced susceptibility and activity of phenylalanine ammonia-lyase in maize mesocotyls wounded or inoculated with fungal pathogens. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Purdue: Purdue University, 1983. |
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Páginas: |
121 p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
he problem of whether resistance expression blocks susceptibility or whether susceptibility blocs resistancein maize was addressed. Anthocyanin accumulation in mesocotyls of the maize hybrid B73HtxVa26Ht was used as a quantitative measure of the plant response to infection. Mesocotyls were inoculated with Helminthosporium carbonum race 1 (resistant combination) followed by inoculation with Helminthosporium maydis race 0 (susceptible combination) at 0, 15, 30, 45, and 60 h. H. maydis blocked the accumulation of anthocyanins at each inoculatio interval except at 60 h after inoculation with H. carbonum. Development of typical susceptible-type lesions by H. maydis occured for the 0, 15, 30, an 60 h challenge inoculations but not for the 60 h challenge. Microscopic observations demonstrated that H. carbonum established substantially more hyphal growth on resistant-maize mesocotyls when the mesocotyls were subsequently inoculated with H. maydis. These observations sugger that H. maydis actively alters the host plant to make it susceptible to H. carbonum. The results are discussed with reference to induced susceptibility. |
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Palavras-Chave: |
Fitopatologia. |
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Thesagro: |
Doença; Milho; Resistência; Zea Mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01684nam a2200193 a 4500
001 1053273
005 2018-06-14
008 1983 bl uuuu m 00u1 u #d
100 1 $aPASCHOLATI, S. F.
245 $aInduced susceptibility and activity of phenylalanine ammonia-lyase in maize mesocotyls wounded or inoculated with fungal pathogens.
260 $aPurdue: Purdue University$c1983
300 $a121 p.
500 $aPh.D. Thesis.
520 $ahe problem of whether resistance expression blocks susceptibility or whether susceptibility blocs resistancein maize was addressed. Anthocyanin accumulation in mesocotyls of the maize hybrid B73HtxVa26Ht was used as a quantitative measure of the plant response to infection. Mesocotyls were inoculated with Helminthosporium carbonum race 1 (resistant combination) followed by inoculation with Helminthosporium maydis race 0 (susceptible combination) at 0, 15, 30, 45, and 60 h. H. maydis blocked the accumulation of anthocyanins at each inoculatio interval except at 60 h after inoculation with H. carbonum. Development of typical susceptible-type lesions by H. maydis occured for the 0, 15, 30, an 60 h challenge inoculations but not for the 60 h challenge. Microscopic observations demonstrated that H. carbonum established substantially more hyphal growth on resistant-maize mesocotyls when the mesocotyls were subsequently inoculated with H. maydis. These observations sugger that H. maydis actively alters the host plant to make it susceptible to H. carbonum. The results are discussed with reference to induced susceptibility.
650 $aDoença
650 $aMilho
650 $aResistência
650 $aZea Mays
653 $aFitopatologia
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 3 | |
| 2. |  | GARCIA, E. O.; PASCHOLATI, S. F.; CASELA, C. R.; FIALHO, M. B. Fitotoxina taxtomina A Streptomyces spp): efeito in vitro e indicação de resistência em plantas de sorgo contra Colletotrichum sublineolum. Tropical Plant Pathology, Brasilia, v. 33, S191, ago. 2008. Suplemento.
Edição dos Resumos do XLI Congresso Brasileiro de Fitopatologia, Belo Horizonte, MG, ago. 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 3. | | BATISTA FIALHO, M.; MORAES, M. H. D. de; TREMOCOLDI, A. R.; PASCHOLATI, S. F. Potential of antimicrobial volatile organic compounds to control Sclerotinia sclerotiorum in bean seeds. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 2, p. 137-142, fev. 2011 Título em português: Potencial de compostos orgânicos voláteis antimicrobianos no controle de Sclerotinia sclerotiorum em sementes de feijão.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 3 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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