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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
27/10/2010 |
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Data da última atualização: |
04/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KELLEY, B. S.; LEE, S.-J.; DAMASCENO, C. M. B.; CHAKRAVARTHY, S.; KIM, B.-D.; MARTIN, G. B.; ROSE, J. K. C. |
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Afiliação: |
BRENDAN S. KELLY, Cornell University; SANG-JIK LEE, Cornell University; CYNTHIA MARIA BORGES DAMASCENO, CNPMS; SUMA CHAKRAVARTHY, Cornell University; BYUNG-DONG KIM, Seoul National University; GREGORY B. MATIN, Cornell University; JOCELYN K. C. ROSE, Cornell University. |
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Título: |
A secreted effector protein (SNE1) from Phytophthora infestans is a broadly acting suppressor of programmed cell death. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
The Plant Journal, v. 62, p. 357-366, 2010. |
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DOI: |
10.1111/j.1365-313X.2010.04160.x |
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Idioma: |
Inglês |
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Conteúdo: |
Evasion or active suppression of host defenses are critical strategies employed by biotrophic phytopathogens and hemibiotrophs whose infection mechanism includes sequential biotrophic and necrotrophic stages. Although defense suppression by secreted effector proteins has been well studied in bacteria, equivalent systems in fungi and oomycetes are poorly understood. We report the characterization of SNE1 (suppressor of necrosis 1), a gene encoding a secreted protein from the hemibiotrophic oomycete Phytophthora infestans that is specifically expressed at the transcriptional level during biotrophic growth within the host plant tomato (Solanum lycopersicum). Using transient expression assays, we show that SNE1 suppresses the action of secreted cell death-inducing effectors from Phytophthora that are expressed during the necrotrophic growth phase, as well as programmed cell death mediated by a range of Avr?R protein interactions. We also report that SNE1 contains predicted NLS motifs and translocates to the plant nucleus in transient expression studies. A conceptual model is presented in which the sequential coordinated secretion of antagonistic effectors by P. infestans first suppresses, but then induces, host cell death, thereby providing a highly regulated means to control the transition from biotrophy to necrotrophy. |
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Thesagro: |
Célula; Genética Vegetal. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02043naa a2200229 a 4500
001 1865403
005 2018-06-04
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1365-313X.2010.04160.x$2DOI
100 1 $aKELLEY, B. S.
245 $aA secreted effector protein (SNE1) from Phytophthora infestans is a broadly acting suppressor of programmed cell death.$h[electronic resource]
260 $c2010
520 $aEvasion or active suppression of host defenses are critical strategies employed by biotrophic phytopathogens and hemibiotrophs whose infection mechanism includes sequential biotrophic and necrotrophic stages. Although defense suppression by secreted effector proteins has been well studied in bacteria, equivalent systems in fungi and oomycetes are poorly understood. We report the characterization of SNE1 (suppressor of necrosis 1), a gene encoding a secreted protein from the hemibiotrophic oomycete Phytophthora infestans that is specifically expressed at the transcriptional level during biotrophic growth within the host plant tomato (Solanum lycopersicum). Using transient expression assays, we show that SNE1 suppresses the action of secreted cell death-inducing effectors from Phytophthora that are expressed during the necrotrophic growth phase, as well as programmed cell death mediated by a range of Avr?R protein interactions. We also report that SNE1 contains predicted NLS motifs and translocates to the plant nucleus in transient expression studies. A conceptual model is presented in which the sequential coordinated secretion of antagonistic effectors by P. infestans first suppresses, but then induces, host cell death, thereby providing a highly regulated means to control the transition from biotrophy to necrotrophy.
650 $aCélula
650 $aGenética Vegetal
700 1 $aLEE, S.-J.
700 1 $aDAMASCENO, C. M. B.
700 1 $aCHAKRAVARTHY, S.
700 1 $aKIM, B.-D.
700 1 $aMARTIN, G. B.
700 1 $aROSE, J. K. C.
773 $tThe Plant Journal$gv. 62, p. 357-366, 2010.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Origem |
Tipo/Formato |
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Registro |
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Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
13/09/2005 |
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Data da última atualização: |
13/09/2005 |
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Autoria: |
ASSIS, O. B. G.; FLORES, A. M.; BERNARDES-FILHO, R.; MASTELARO, V. R. |
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Título: |
AFM surface characterization of Ce-oxide based porus glass for sensor applications. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Acta Microscopica, Maracaibo, v. 10, p. 87-90. abr 2001. Supplement 1. Proceedings of The First Latin American Symposium on Scanning Microscopy, São Pedro, SP, april, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
AFM was used to investigate pore formation in a Na-B-Nb-Ce glass by the leaching process. In the technique described, phase rich in B is formed within the matrix and removed by solubilization in boiling water. The resultant pores were measured using the statistical approach and presented medium size of aproximately 80 nm, irregularly distributed along the structure. |
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Palavras-Chave: |
AFM; Microscopia de Força Atômica. |
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Thesaurus NAL: |
biopolymers. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01044naa a2200193 a 4500
001 1029075
005 2005-09-13
008 2001 bl --- 0-- u #d
100 1 $aASSIS, O. B. G.
245 $aAFM surface characterization of Ce-oxide based porus glass for sensor applications.
260 $c2001
520 $aAFM was used to investigate pore formation in a Na-B-Nb-Ce glass by the leaching process. In the technique described, phase rich in B is formed within the matrix and removed by solubilization in boiling water. The resultant pores were measured using the statistical approach and presented medium size of aproximately 80 nm, irregularly distributed along the structure.
650 $abiopolymers
653 $aAFM
653 $aMicroscopia de Força Atômica
700 1 $aFLORES, A. M.
700 1 $aBERNARDES-FILHO, R.
700 1 $aMASTELARO, V. R.
773 $tActa Microscopica, Maracaibo$gv. 10, p. 87-90. abr 2001. Supplement 1. Proceedings of The First Latin American Symposium on Scanning Microscopy, São Pedro, SP, april, 2001.
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Embrapa Instrumentação (CNPDIA) |
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