Stephane Genin and Christian Boucher
Laboratoire de Biologie Moléculaire des Relations Plantes-Microorganismes, INRA-CNRS, BP27, 31326 Castanet-Tolosan Cedex, France
| Taxonomy: | Bacteria; Proteobacteria; ßsubdivision; Ralstonia group; genus Ralstonia |
| Microbial properties: | Gram-negative, aerobic, motile rod. |
| Disease symptoms: | Agent of bacterial wilt of solanaceous plants, which appears as a sudden wilt. Typically, stem crosssections ooze a whitish bacterial exudate. R. solanacearum is also the agent of the Moko disease of banana and brown rot of potato. |
| Disease control: | Pathogen-free seed and transplants. Few resistant and tolerant plant lines. Sanitation and cultural rotations. |
| Useful web sites: | http://ibws.nexenservices.com/ http://sequence.toulouse.inra.fr/r.solanacearum.html |
| Symptoms caused by R. solanacearum on tomato (A) and by R. solanacearum strain GMI1000 on Arabidopsis thaliana ecotype Columbia (B). Typical wilting symptoms can be observed 5–6 days after inoculation. |
