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Pseudomonas pp 113-138 | Cite as

The Genome of Pseudomonas syringae Tomato DC3000 and Functional Genomic Studies to Better Understand Plant Pathogenesis

  • Yashitola Jamir
  • Xiaoyan Tang
  • James R. Alfano

Abstract

Pseudomonas syringae is a member of the gamma subgroup of the Proteobacteria and a plant pathogen that infects many different plants30, Certain P syringae strains can infect only one or a few plant species, and on this basis, P syringae has been separated into greater than 50 pathovars106. While P syringae will eventually kill plant cells (i.e., it is necrogenic), it is typically considered a biotrophic pathogen and it can live on plant leaves as an epiphyte3, 49. The host specificity that P syringae displays is at least partly due to pathogen avirulence genes that encode proteins (i.e., Avr proteins) that trigger the disease resistance (R)-gene-based plant innate immune system in resistant plants53, One of the plant defense responses triggered by Avr proteins is the hypersensitive response (HR), which is a programmed cell death of plant tissue that is associated with successful defense against pathogens. P syringae mutants unable to elicit an HR led to the discovery of hrp genes—the genes that encode the P syringae type III proteins secretion system (TT88) 63. P syringae pathogenesis relies on the TT88 and the effector proteins it translocates into host cells similar to most of the animal and plant pathogens that possess TT88s27.

Keywords

Yersinia Enterocolitica Xanthomonas Campestris Avirulence Gene Plant Pathogenic Bacterium Tomato DC3000 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2004

Authors and Affiliations

  • Yashitola Jamir
    • 1
  • Xiaoyan Tang
    • 2
  • James R. Alfano
    • 1
  1. 1.Plant Science Initiative and Department of Plant PathologyUniversity of NebraskaLincolnUSA
  2. 2.Department of Plant PathologyKansas State UniversityManhattanUSA

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