The Role of Biofilm Genes in Lettuce Rhizosphere Colonization by Escherichia coli by Escherichia coli

ABSTRACT: Leafy green vegetables, such as lettuce, have been increasingly implicated in outbreaks of foodborne illnesses due to contamination by Escherichia coli O157:H7. While E. coli can survive in soils, colonize plants, and survive on produce, very little is known about the interaction of E. coli with the roots of growing lettuce plants. In these studies a combination of microarray analyses and microbial genetics were used to gain a comprehensive understanding of bacterial genes involved in the colonization and growth of E. coli K12 on lettuce roots using a hydroponic assay system. Here we report that after three days of interaction with lettuce roots, 193 and 131 genes were significantly up-regulated and down-regulated at least 1.5 fold, respectively. Forty-five out of the 193 up-regulated gen

ORGANISM(S): Escherichia coli str. K-12 substr. MG1655

SUBMITTER: zhe hou 

PROVIDER: E-GEOD-33735 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress