Molecular Plant-Microbe Interactions (1998) 11, 1242-1246

Truus E.M. Abbink, Pernilla A. Tjernberg, John F. Bol and Huub J.M. Linthorst (1998)
Tobacco mosaic virus helicase domain induces necrosis in N gene-carrying tobacco in the absence of virus replication
Molecular Plant-Microbe Interactions 11 (12), 1242-1246
Abstract: Tobacco mosaic virus (TMV) elicits a hypersensitive response (HR) in tobacco plants that carry the N gene. To identify the elicitor of this HR, Agrobacteriumn tumefaciens was used as a vector for the transient expression of TMV replicase proteins, movement protein, and coat protein in NN and nn tobacco. Transient expression of the 126K protein and fragments thereof containing the helicase motifs induced necrosis and systemic expression of the pathogenesis-related PR-1a gene in NN plants but not in nn plants. The results confirm previous evidence that the TMV helicase sequence is the elicitor of the HR (H. S. Padgett, Y. Watanabe, and R. N. Beachy, Mol. Plant-Microbe Interact. 10:709-715, 1997) and demonstrate that this helicase sequence acts as an elicitor of HR in the absence of other viral proteins or RNA replication.
(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): Huub J.M. Linthorst

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

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tobacco mosaic virus	Tobacco (Nicotiana tabacum)