Abstract
Bacterial wilt is caused by a soil borne pathogen, Ralsotonia solanacearum, and damaging the production of major crops such as potato, tomato, and eggplant. The pathogen infection occurs mainly at roots via wounds or secondary roots. In early stages of infection, the pathogen multiply in the vascular element and produce extracellular polysaccharides clogging their vascular system. The pathogenicity and molecular mechanism of the infection of R. solanacearum have been well studied through molecular genetic approaches and the genome sequencing project. On the other hand, only a limited amount of information is reported for plant responses during the infection or development of disease resistance. Here, we report gene expression profiles of Tobacco plants during the infection of either an incompatible- or a compatible-strain of R. solanacearum, using a DNA array filter set with about 11,000 non-redundant tomato EST sequences.
