Type Three Secretion System in Pseudomonas savastanoi Pathovars: Does Timing Matter?

Abstract:

:Pseudomonas savastanoi pv. savastanoi is the causal agent of Olive knot disease, relying on the Type Three Secretion System (TTSS) for its pathogenicity. In this regard, nothing was known about the two other pathovars belonging to this species, pv. nerii and pv. fraxini, characterized by a different host range. Here we report on the organization of the entire TTSS cluster on the three pathovars, and a phylogenetic analysis including the TTSS of those bacteria belonging to the P. syringae complex sequenced so far, highlighting the evolution of each operon (hrpC, hrpJ, hrpRS, hrpU and hrpZ). Moreover, by Real-Time PCR we analyzed the in vitro expression of four main TTSS genes, revealing different activation patterns in the three pathovars, hypothetically related to their diverse virulence behaviors.

journal_name

Genes (Basel)

journal_title

Genes

authors

Tegli S,Gori A,Cerboneschi M,Cipriani MG,Sisto A

doi

10.3390/genes2040957

subject

Has Abstract

pub_date

2011-11-25 00:00:00

pages

957-79

issue

4

issn

2073-4425

pii

genes2040957

journal_volume

2

pub_type

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