Microarray comparison of gene expression in Arabidopsis Columbia-0 and ibi1-1 plants in response to beta-amino butyric acid and Hyaloperonospora arabidopsidis

ABSTRACT: Beta-amino butyric acid (BABA) is an endogenous stress signalling molecule in plants. External application (e.g. by soil-drenching) of BABA induces high levels of resistance in Arabidopsis (and other plants) against the oomycete pathogen Hyaloperonospora arabidopsidis. However, high doses of BABA also trigger a metabolic stress response and stunt plant growth. Perception of BABA is mediated by the protein IBI1. The ibi1-1 mutant is deficient in BABA-induced resistance, but hypersensitive to BABA-induced stress. To identify pathways that contribute to BABA-induced resistance and stress, respectively, we compared the transcriptome of Arabidopsis wild-type and ibi1-1 mutant plants after pre-treatment with water or BABA, followed by inoculation with Hyaloperonospora arabidopsidis (or mock).

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Jurriaan Ton 

PROVIDER: E-MTAB-8720 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress