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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
02/08/2007 |
Data da última atualização: |
18/03/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CAVALCANTE, J. J. V.; VARGAS, C.; NOGUEIRA, E. M.; VINAGRE, F.; SCHWARCZ, K.; BALDANI, J. I.; FERREIRA, P. C. G.; HEMERLY, A. S. |
Afiliação: |
J. J. V. Cavalcante, UFRJ; Claudia Vargas, UFRJ; Euler Melo Nogueira, UFRJ; Fabiano Vinagre, UFRJ; K. Schwarcz, UFRJ; José Ivo Baldani, Embrapa Agrobiologia; P. C. G. Ferreira, UFRJ; Adriana S. Hemerly, UFRJ. |
Título: |
Members of the ethylene signalling pathway are regulated in sugarcane during the association with nitrogen-fixing endophytic bacteria. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Journal of Experimental Botany, Oxford, v. 58, n. 3, p. 673-686, feb. 2007. |
Idioma: |
Inglês |
Conteúdo: |
Nitrogen-fixing bacteria have been isolated from sugarcane in an endophytic and beneficial interaction that promotes plant growth. In this work, for the first time, the involvement of ethylene signalling in this interaction was investigated by molecular characterizing members of this pathway in sugarcane. The expression pattern of a putative ethylene receptor (SCER1) and two putative ERF transcription factors (SCERF1 and SCERF2) show exclusive modulation in plants inoculated with the diazotrophic endophytes. The gene expression profile of SCER1, SCERF1, and SCERF2 is differentially regulated in sugarcane genotypes that can establish efficient or inefficient associations with diazotrophic micro-organisms, exhibiting high or low biological nitrogen fixation (BNF) rates, respectively. In addition, SCER1, SCERF1, and SCERF2 expression is different in response to interactions with pathogenic and beneficial micro-organisms. Taken together, that data suggest that SCER1, SCERF1, and SCERF2 might participate in specific ethylene signalling cascade(s) that can identify a beneficial endophytic association, modulating sugarcane responses toward the diazotrophic endophytes. |
Palavras-Chave: |
Bactéria diazotrófica endofítica; Biological nitrogen fixation; BNF; Cana-de-açúcar; Endophytic diazotrophic bacteria; FBN; Fixação biológica de nitrogênio. |
Thesaurus Nal: |
sugarcane. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02129naa a2200301 a 4500 001 1625930 005 2015-03-18 008 2007 bl --- 0-- u #d 100 1 $aCAVALCANTE, J. J. V. 245 $aMembers of the ethylene signalling pathway are regulated in sugarcane during the association with nitrogen-fixing endophytic bacteria. 260 $c2007 520 $aNitrogen-fixing bacteria have been isolated from sugarcane in an endophytic and beneficial interaction that promotes plant growth. In this work, for the first time, the involvement of ethylene signalling in this interaction was investigated by molecular characterizing members of this pathway in sugarcane. The expression pattern of a putative ethylene receptor (SCER1) and two putative ERF transcription factors (SCERF1 and SCERF2) show exclusive modulation in plants inoculated with the diazotrophic endophytes. The gene expression profile of SCER1, SCERF1, and SCERF2 is differentially regulated in sugarcane genotypes that can establish efficient or inefficient associations with diazotrophic micro-organisms, exhibiting high or low biological nitrogen fixation (BNF) rates, respectively. In addition, SCER1, SCERF1, and SCERF2 expression is different in response to interactions with pathogenic and beneficial micro-organisms. Taken together, that data suggest that SCER1, SCERF1, and SCERF2 might participate in specific ethylene signalling cascade(s) that can identify a beneficial endophytic association, modulating sugarcane responses toward the diazotrophic endophytes. 650 $asugarcane 653 $aBactéria diazotrófica endofítica 653 $aBiological nitrogen fixation 653 $aBNF 653 $aCana-de-açúcar 653 $aEndophytic diazotrophic bacteria 653 $aFBN 653 $aFixação biológica de nitrogênio 700 1 $aVARGAS, C. 700 1 $aNOGUEIRA, E. M. 700 1 $aVINAGRE, F. 700 1 $aSCHWARCZ, K. 700 1 $aBALDANI, J. I. 700 1 $aFERREIRA, P. C. G. 700 1 $aHEMERLY, A. S. 773 $tJournal of Experimental Botany, Oxford$gv. 58, n. 3, p. 673-686, feb. 2007.
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