Transcriptome profiling of bacterial responses to root exudates identifies genes involved in microbe-plant interactions.

ABSTRACT: Molecules exuded by plant roots are thought to act as signals to influence the ability of microbial strains to colonize the roots and to survive in the rhizosphere. Differential bacterial responses to signals from different plant species may mediate the selection of specific rhizosphere populations. Very little, however, is known about the effects of plant exudates on patterns of bacterial gene expression. Here, we have tested the concept that plant root exudates modulate expression of bacterial genes involved in establishing microbe-plant interactions. We have examined the influence on the Pseudomonas aeruginosa PA01 transcriptome of exudates from two varieties of sugarbeet that select for genetically distinct pseudomonad populations in the rhizosphere. The response to the two exudates sh

SUBMITTER: Mark GL 

PROVIDER: S-EPMC1297666 | biostudies-literature | 2005 Nov

REPOSITORIES: biostudies-literature