Genome-Wide Analysis of the Response of Dickeya dadantii 3937 to Plant Antimicrobial Peptides

Río-Álvarez, Isabel and Rodríguez Herva, Jose Juan and Cuartas-Lanza, Raquel and Toth, Ian and Pritchard, Leighton and Rodriguez Palenzuela, Pablo and Lopez Solanilla, Emilia (2012). Genome-Wide Analysis of the Response of Dickeya dadantii 3937 to Plant Antimicrobial Peptides. "Molecular plant-microbe interactions", v. 25 (n. 4); pp. 523-533. ISSN 0894-0282. https://doi.org/10.1094/MPMI-09-11-0247.

Description

Title: Genome-Wide Analysis of the Response of Dickeya dadantii 3937 to Plant Antimicrobial Peptides
Author/s:
  • Río-Álvarez, Isabel
  • Rodríguez Herva, Jose Juan
  • Cuartas-Lanza, Raquel
  • Toth, Ian
  • Pritchard, Leighton
  • Rodriguez Palenzuela, Pablo
  • Lopez Solanilla, Emilia
Item Type: Article
Título de Revista/Publicación: Molecular plant-microbe interactions
Date: 2012
ISSN: 0894-0282
Volume: 25
Subjects:
Faculty: Centro de Investigación en Biotecnología y Genómica de Plantas (CBGP) (UPM)
Department: Biotecnologia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Antimicrobial peptides constitute an important factor in the defense of plants against pathogens, and bacterial resistance to these peptides have previously been shown to be an important virulence factor in Dickeya dadantii, the causal agent of soft-rot disease of vegetables. In order to understand the bacterial response to antimicrobial pep- tides, a transcriptional microarray analysis was performed upon treatment with sub-lethal concentration of thionins, a widespread plant peptide. In all, 36 genes were found to be overexpressed, and were classified according to their deduced function as i) transcriptional regulators, ii) transport, and iii) modification of the bacterial membrane. One gene encoding a uricase was found to be repressed. The majority of these genes are known to be under the control of the PhoP/PhoQ system. Five genes representing the different functions induced were selected for further analysis. The results obtained indicate that the presence of antimicrobial peptides induces a complex response which includes peptide-specific elements and general stress-response elements contributing differentially to the virulence in different hosts.

More information

Item ID: 16749
DC Identifier: http://oa.upm.es/16749/
OAI Identifier: oai:oa.upm.es:16749
DOI: 10.1094/MPMI-09-11-0247
Deposited by: Memoria Investigacion
Deposited on: 16 Sep 2013 18:15
Last Modified: 21 Apr 2016 17:06
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