Strangers in the matrix: plant cell walls and pathogen susceptibility

Early in infection, pathogens encounter the outer wall of plant cells. Because pathogen hydrolases targeting the plant cell wall are well-known components of virulence, it has been assumed that wall disassembly by the plant itself also contributes to susceptibility, and now this has been established...

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Bibliographic Details
Published in:Trends in plant science 2008-11, Vol.13 (11), p.610-617
Main Authors: Cantu, Dario, Vicente, Ariel R., Labavitch, John M., Bennett, Alan B., Powell, Ann L.T.
Format: Article
Language:English
Subjects:
Agrobacterium tumefaciens - pathogenicity
Biological and medical sciences
carbohydrate metabolism
Cell Wall - microbiology
Cell Wall - parasitology
Cell Wall - physiology
cell walls
disease resistance
Disease Susceptibility - physiopathology
Fruit - microbiology
Fruit - parasitology
Fundamental and applied biological sciences. Psychology
host-pathogen relationships
literature reviews
pathogenesis
Plant Diseases - microbiology
Plant Diseases - parasitology
plant pathogens
polysaccharides
Pseudomonas syringae - pathogenicity
signal transduction
Virulence
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Summary:Early in infection, pathogens encounter the outer wall of plant cells. Because pathogen hydrolases targeting the plant cell wall are well-known components of virulence, it has been assumed that wall disassembly by the plant itself also contributes to susceptibility, and now this has been established experimentally. Understanding how plant morphological and developmental remodeling and pathogen cell wall targeted virulence influence infections provides new perspectives about plant–pathogen interactions. The plant cell wall can be an effective physical barrier to pathogens, but also it is a matrix where many proteins involved in pathogen perception are delivered. By breaching the wall, a pathogen potentially reveals itself to the plant and activates responses, setting off events that might halt or limit its advance.
ISSN:1360-1385
1878-4372
DOI:10.1016/j.tplants.2008.09.002