Molecular Plant-Microbe Interactions (2002) 15, 1000-1007

Nan Yao, Satoshi Imai, Yasuomi Tada, Hitoshi Nakayashiki, Yukio Tosa, Pyoyun Park and Shigeyuki Mayama (2002)
Apoptotic cell death is a common response to pathogen attack in oats
Molecular Plant-Microbe Interactions 15 (10), 1000-1007
Abstract: We have examined the characteristics of cell death induced by pathogen infection in oats with respect to following hallmark apoptotic features: DNA laddering, chromatin condensation, and electron microscopic-terminal deoxynucleotidyl transferase-mediated UTP end labeling positive response. A wide range of plant pathogens representing different levels of parasitism in susceptible and resistant interactions were used for the inocula, which include (i) an obligate parasite, Puccinia coronata f. sp. avenae (the crown rust fungus); (ii) a facultative biotroph parasite, Magnaporthe grisea (the blast fungus); (iii) pathogenic bacteria, Pseudomonas syringae pv. atropurpurea and P. syringae pv. coronafaciens (the halo or stripe blights of oats); and (iv) Ryegrass mottle virus. Surprisingly, any of the pathogens used induced most of the apoptotic features in oat cells at and around the infection sites, indicating that apoptotic cell death is a common phenomenon in oats during pathogen attack. The localization and the timing of apoptotic cell death during a course of infection were, however, quite different depending on the interactions (compatible or incompatible) and the pathogens (fungi, bacteria, or viruses). Possible roles of apoptotic cell death in the susceptible and resistant interactions are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Yukio Tosa, Pyoyun Park, Hitoshi Nakayashiki

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Puccinia coronata	Oat (Avena sativa)
	Pyricularia oryzae	Oat (Avena sativa)
	Pseudomonas syringae pv. atropurpurea	Oat (Avena sativa)
	Pseudomonas coronafaciens	Oat (Avena sativa)
	Ryegrass mottle virus	Oat (Avena sativa)
	Pseudomonas syringae