A gene cluster required for coordinated biosynthesis of lipopolysaccharide and extracellular polysaccharide also affects virulence of Pseudomonas solanacearum.
AUTOR(ES)
Kao, C C
RESUMO
Bacterial cell surface components can be important determinants of virulence. At least three gene clusters important for extracellular polysaccharide (EPS) biosynthesis have been previously identified in the plant pathogen Pseudomonas solanacearum. We have found that one of these gene clusters, named ops, is also required for lipopolysaccharide (LPS) biosynthesis. Mutations in any complementation unit of this cluster decreased EPS production, prevented the binding of an LPS-specific phage, and altered the mobility of purified LPS in sodium dodecyl sulfate-polyacrylamide gel electrophoresis. However, restoration of LPS biosynthesis alone was not sufficient to restore virulence to the wild-type level, suggesting that EPS is important for pathogenesis.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=212575Documentos Relacionados
- Extracellular polysaccharide is required for wild-type virulence of Pseudomonas solanacearum.
- Genetic and biochemical characterization of a Pseudomonas solanacearum gene cluster required for extracellular polysaccharide production and for virulence.
- Interaction of Pseudomonas solanacearum Lipopolysaccharide and Extracellular Polysaccharide with Agglutinin from Potato Tubers
- Molecular cloning of genes that specify virulence in Pseudomonas solanacearum.
- A complex network regulates expression of eps and other virulence genes of Pseudomonas solanacearum.
