Journal
FEMS MICROBIOLOGY LETTERS
Volume 245, Issue 1, Pages 1-8Publisher
OXFORD UNIV PRESS
DOI: 10.1016/j.femsle.2005.02.025
Keywords
plant immunity; plant disease susceptibility; programmed cell death; bacterial pathogenesis; type III secretion system
Categories
Ask authors/readers for more resources
Pseudomonas syringae pv. tomato DC3000 is a model pathogen for studying the molecular basis of plant immunity and disease susceptibility in tomato and Arabidopsis. DC3000 uses a type III secretion system to inject effector proteins into the plant cell. Type III effectors are thought to promote bacterial virulence by suppressing plant defenses and enhancing access to nutrients trapped in the plant cell. The AvrPtoB type III effector elicits immunity-associated programmed cell death (PCD) when expressed in tomato plants carrying the Pto resistance protein. However, in the absence of Pto, AvrPtoB functions to suppress PCD and immunity in tomato. Here, we review current research examining the molecular basis of AvrPtoB-mediated elicitation and suppression of plant PCD. In addition, the trump model is proposed to explain how resistance proteins successfully elicit immunity-associated PCD in response to effectors that suppress PCD. (c) 2005 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available