Role of root-specific transcription factor MYB72 in regulation of Pseudomonas fluorescens WCS417-mediated changes in gene expression in roots of Arabidopsis thaliana

ABSTRACT: • Selected soil-borne rhizobacteria can trigger an induced systemic resistance (ISR) that is effective against a broad spectrum of pathogens. In Arabidopsis thaliana, the root-specific transcription factor MYB72 is required for the onset of ISR, but is also associated with plant survival under conditions of iron deficiency. Here we investigated the role of MYB72 in both processes. • To identify MYB72 target genes, we analyzed the root transcriptomes of wild-type Col-0, mutant myb72, and complemented 35S:FLAG-MYB72/myb72 plants in response to ISR-inducing Pseudomonas fluorescens WCS417. • Five WCS417-inducible genes were misregulated in myb72 and complemented in 35S:FLAG-MYB72/myb72. Amongst these, we uncovered β-glucosidase BGLU42 as a novel component of the ISR signaling pathway.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Corné Pieterse 

PROVIDER: E-GEOD-77806 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress