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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
15/04/2019 |
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Data da última atualização: |
15/04/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COSTA, F. M.; ROCHA, A.; MIZUNO, C. S.; SHUHAMA, I. K.; CERDEIRA, A. L.; UETA, J. |
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Afiliação: |
FREDERICO M. COSTA, USP/RIBEIRÃO PRETO/SP; ADRIANA ROCHA, USP/RIBEIRÃO PRETO/SP; CASSIA S. MIZUNO, USP/RIBEIRÃO PRETO/SP; ILMA K. SHUHAMA, USP/RIBEIRÃO PRETO/SP; ANTONIO LUIZ CERDEIRA, CNPMA; JULIETA UETA, USP/RIBEIRÃO PRETO/SP. |
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Título: |
Soils from microbasin of Espraiado, Ribeirão Preto City, Brazil: evaluation of microbial population from soil suspensions incubated with atrazine and 2,4-D Les sols du microbassin de Espraiado, Ribeirao Preto, Brésil : évaluation de la population microbienne de suspensions de sols incubées avec l'Atrazine le 2,4-D. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 16., 1999,Montpellier, France. Proceedings...Montepellier, France, 1999, CD Rom Symposion 7, Scientific Registration 1388, p. 1-7. |
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Idioma: |
Inglês |
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Thesaurus Nal: |
2,4-D; Atrazine; Soil microorganisms; Tropical soils. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195878/1/1999AA-Cerdeira-Soils.pdf
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Marc: |
LEADER 00958nam a2200205 a 4500
001 2108250
005 2019-04-15
008 1999 bl uuuu u00u1 u #d
100 1 $aCOSTA, F. M.
245 $aSoils from microbasin of Espraiado, Ribeirão Preto City, Brazil$bevaluation of microbial population from soil suspensions incubated with atrazine and 2,4-D Les sols du microbassin de Espraiado, Ribeirao Preto, Brésil : évaluation de la population microbienne de suspensions de sols incubées avec l'Atrazine le 2,4-D.$h[electronic resource]
260 $aIn: WORLD CONGRESS OF SOIL SCIENCE, 16., 1999,Montpellier, France. Proceedings...Montepellier, France, 1999, CD Rom Symposion 7, Scientific Registration 1388, p. 1-7.$c1999
650 $a2,4-D
650 $aAtrazine
650 $aSoil microorganisms
650 $aTropical soils
700 1 $aROCHA, A.
700 1 $aMIZUNO, C. S.
700 1 $aSHUHAMA, I. K.
700 1 $aCERDEIRA, A. L.
700 1 $aUETA, J.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/03/2008 |
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Data da última atualização: |
09/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
BARRETO, A. L. H.; VASCONCELOS, I. M.; GRANGEIRO, T. B.; MELO, V. M. M.; MATOS, T. E.; ELOY, Y. R. G.; FERNANDES, C. F.; TORRES, D. C.; FREIRE FILHO, F. R.; FREIRE, F. C. O.; OLIVEIRA, J. T. A. |
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Afiliação: |
ANA LUCIA HORTA BARRETO, CPAMN; ILKA M. VASCONCELOS; FRANCISCO RODRIGUES FREIRE FILHO, CPAMN. |
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Título: |
Infection process and host defense responses in compatible and incompatible interactions between Cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
International Journal of Plant Sciences, Chicago, v. 168, n. 2, p. 193-203, 2007. |
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ISSN: |
1058-5893 |
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Idioma: |
Inglês |
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Conteúdo: |
The infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this study suggested that TE 97-411 is the resistant genotype to C. gloeosporioides compared with BR 3 Tracuateua because it developed more effective defense responses against the establishment of the pathogen. MenosThe infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this stu... Mostrar Tudo |
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Palavras-Chave: |
Cowpea; Defense responses; Infection process. |
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Thesagro: |
Colletotrichum Gloeosporioides. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02659naa a2200301 a 4500
001 1069732
005 2023-11-09
008 2007 bl uuuu u00u1 u #d
022 $a1058-5893
100 1 $aBARRETO, A. L. H.
245 $aInfection process and host defense responses in compatible and incompatible interactions between Cowpea (Vigna unguiculata) and Colletotrichum gloeosporioides.
260 $c2007
520 $aThe infection process of Colletotrichum gloeosporioides was examined by light microscopy on two cowpea genotypes, BR 3 Tracuateua and TE 97-411. In the susceptible genotype BR 3 Tracuateua, the pathogen acted as an intracellular hemibiotroph. Invasion of cowpea primary leaves occurred preferentially through the leaf epidermal cells by penetration tubes that emerged from appressoria. The penetration tube swelled within 48 h to form a spherical infection vesicle inside the epidermal cell in a biotrophic interaction. Subsequently, it became multilobed and multiseptated. By 4 d after inoculation, one or more large primary hyphae emerged from the lateral lobes and grew intracellularly and further colonized several adjacent epidermal host cells, characterizing the necrotrophic phase of infection. Primary leaves of the resistant cowpea genotype, TE 97-411, showed enhanced penetration resistance to C. gloeosporioides associated with higher epidermal H2O2 accumulation beneath appressoria and primary germ tubes, papilla formation, and increased phenylalanine ammonia-lyase activity, possibly related to accumulation of phenolic compounds and host cell wall lignification. Macroscopic examination of the primary leaves revealed the presence of shrunken necrotic lesions characteristic of anthracnose in infected BR 3 Tracuateua, whereas in the genotype TE 97-411, cell death was also observed but only in a reduced percentage of the infection sites. In summary, the results obtained in this study suggested that TE 97-411 is the resistant genotype to C. gloeosporioides compared with BR 3 Tracuateua because it developed more effective defense responses against the establishment of the pathogen.
650 $aColletotrichum Gloeosporioides
653 $aCowpea
653 $aDefense responses
653 $aInfection process
700 1 $aVASCONCELOS, I. M.
700 1 $aGRANGEIRO, T. B.
700 1 $aMELO, V. M. M.
700 1 $aMATOS, T. E.
700 1 $aELOY, Y. R. G.
700 1 $aFERNANDES, C. F.
700 1 $aTORRES, D. C.
700 1 $aFREIRE FILHO, F. R.
700 1 $aFREIRE, F. C. O.
700 1 $aOLIVEIRA, J. T. A.
773 $tInternational Journal of Plant Sciences, Chicago$gv. 168, n. 2, p. 193-203, 2007.
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