Light regulates motility, attachment and virulence in the plant pathogen Pseudomonas syringae pv tomato DC3000.

Río-Álvarez, Isabel and Rodríguez Herva, Jose Juan and Martínez García, Pedro Manuel and Gonzalez-Melendi de Leon, Pablo and García Casado, Gloria and Rodriguez Palenzuela, Pablo and Lopez Solanilla, Emilia (2013). Light regulates motility, attachment and virulence in the plant pathogen Pseudomonas syringae pv tomato DC3000.. "Environmental Microbiology", v. 16 (n. 7); pp. 2072-2085. ISSN 1462-2912. https://doi.org/10.1111/1462-2920.12240.

Description

Title: Light regulates motility, attachment and virulence in the plant pathogen Pseudomonas syringae pv tomato DC3000.
Author/s:
  • Río-Álvarez, Isabel
  • Rodríguez Herva, Jose Juan
  • Martínez García, Pedro Manuel
  • Gonzalez-Melendi de Leon, Pablo
  • García Casado, Gloria
  • Rodriguez Palenzuela, Pablo
  • Lopez Solanilla, Emilia
Item Type: Article
Título de Revista/Publicación: Environmental Microbiology
Date: August 2013
ISSN: 1462-2912
Volume: 16
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

Pseudomonas syringae pv tomato DC3000 (Pto) is the causal agent of the bacterial speck of tomato, which leads to significant economic losses in this crop. Pto inhabits the tomato phyllosphere, where the pathogen is highly exposed to light, among other environmental factors. Light represents a stressful condition and acts as a source of information associated with different plant defence levels. Here, we analysed the presence of both blue and red light photoreceptors in a group of Pseudomonas. In addition, we studied the effect of white, blue and red light on Pto features related to epiphytic fitness. While white and blue light inhibit motility, bacterial attachment to plant leaves is promoted. Moreover, these phenotypes are altered in a blue-light receptor mutant. These light-controlled changes during the epiphytic stage cause a reduction in virulence, highlighting the relevance of motility during the entry process to the plant apoplast. This study demonstrated the key role of light perception in the Pto phenotype switching and its effect on virulence.

More information

Item ID: 29013
DC Identifier: http://oa.upm.es/29013/
OAI Identifier: oai:oa.upm.es:29013
DOI: 10.1111/1462-2920.12240
Official URL: http://onlinelibrary.wiley.com/doi/10.1111/1462-2920.12240/abstract
Deposited by: Memoria Investigacion
Deposited on: 29 Jul 2014 15:13
Last Modified: 31 Jul 2015 22:56
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