Skip Navigation



JXB Advance Access published online on January 8, 2007
Journal of Experimental Botany, doi:10.1093/jxb/erl242
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
58/3/673    most recent
erl242v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Cavalcante, J.
Right arrow Articles by Hemerly, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Cavalcante, J.
Right arrow Articles by Hemerly, A.
Agricola
Right arrow Articles by Cavalcante, J.
Right arrow Articles by Hemerly, A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author [2007]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org

RESEARCH PAPER

Members of the ethylene signalling pathway are regulated in sugarcane during the association with nitrogen-fixing endophytic bacteria

JJV Cavalcante1,2,*, C Vargas1,2,*, EM Nogueira1,2, F Vinagre1,2, K Schwarcz1,2, JI Baldani3, PCG Ferreira1,2 and AS Hemerly1,2,{dagger}

1Instituto de Bioquímica Médica, UFRJ, 21941-590, Rio de Janeiro, RJ, Brazil
2Laboratório de Biologia Molecular de Plantas, Instituto de Pesquisas, do Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, 22460-030, Rio de Janeiro, RJ, Brazil
3CNPAB/EMBRAPA, BR465, Km47 23851-970, Seropédica, RJ, Brazil

{dagger}To whom correspondence should be addressed. E-mail: hemerly{at}bioqmed.ufrj.br or hemerly{at}cshl.edu

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.

Key words: Biological nitrogen fixation, diazotrophic endophytes, ERF, ethylene-responsive factor, ethylene signalling, plant–microbe interaction, receptor, sugarcane


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Plant Cell PhysiolHome page
L. E. Trujillo, M. Sotolongo, C. Menendez, M. E. Ochogavia, Y. Coll, I. Hernandez, O. Borras-Hidalgo, B. P. H. J. Thomma, P. Vera, and L. Hernandez
SodERF3, a Novel Sugarcane Ethylene Responsive Factor (ERF), Enhances Salt and Drought Tolerance when Overexpressed in Tobacco Plants
Plant Cell Physiol., April 1, 2008; 49(4): 512 - 525.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.