Agricultural Microbes Genome 2 Conference

Poster: Microbial Genome Sequencing/Programs
P01_05.html

BIOFILM AND PATHOGENICITY: GUM OPERONS OF THE Xanthomonas GROUP BACTERIA

¹ Centro de Biologia Molecular e Engenharia Genética (CBMEG), Universidade Estadual de Campinas, CxP 6010, 13083-970, Campinas - SP, Brasil. felipes@unicamp.br

The Xanthomonas group, or Lysobacteraceae family of bacteria comprise several phytopathogenic species including Xylella fastidiosa and Xanthomonas campestris. Xylella fastidiosa was the first plant pathogen completely sequenced. An operon containing the genes responsible for the synthesis and secretion of a novel exopolysaccharide (EPS), the fastidian gum, was found on its genome. This operon is very similar to the one already described in Xanthomonas campestris, involved in the xanthan gum synthesis. Xanthan gum was shown to be related the pathogenicity of Xanthomonas. We describe here the differences among gum operons of various Lysobacteraceae bacteria and relate them to the distinct EPSs found on those bacteria. Supported by FAPESP