The Gene Encoding the Major Glucose Transporter of C1L Participates in Root Colonization and Beneficial Metabolite Production to Induce Plant Systemic Disease Resistance.

Rhizosphere interactions between microorganisms and plants have great influence on plant health. C1L, an induced systemic resistance (ISR)-eliciting rhizobacterium from , can protect monocot and dicot plants from disease challenges. To identify the ISR-involved bacterial genes, the systemic protection effect of transposon-tagged mutants of C1L against southern corn leaf blight (SCLB) was surveyed, and a mutant of the gene encoding glucose-specific permease of the phosphotransferase system was severely impaired in the abilities of disease suppression and root colonization.