Data from: Proteasome-associated HECT-type ubiquitin ligase activity is required for plant immunity - E-MTAB-7374 - Salicylic acid-induced gene expression in wild-type Col-0 and mutant upl3-4 Arabidopsis thaliana plants

Samples: 11 Protocols: 6 -- Organism: Arabidopsis thaliana -- Experiment types: RNA-seq of coding RNA, compound treatment design --- Activation of plant immunity is associated with dramatic transcriptome reprogramming to prioritise immune responses over normal cellular functions. Changes in gene expression are coordinated by the immune hormone salicylic acid (SA). Here we investigated the involvement of the HECT-type ligase Ubiquitin Protein Ligase 3 (UPL3) in SA-induced transcriptional reprogramming. We show that UPL3 acts as an amplifier of SA-induced changes in gene expression. Four-week old Arabidopsis thaliana plants of wild-type Col-0 and mutant upl3-4 genotypes were germinated on soil in 100% relative humidity. After 12 days plants were transplanted to larger pots (six plants per pot) and grown for an additional 3 weeks before experimental treatment. Plants were continuously grown in an environmental chamber with 16/8 hour day/night light regime (120 mol m-2 s-1 light intensity), 21/18 degrees celcius day/night cycle and 65% relative humidity. Plants were then sprayed with water or 0.5 mM SA until all leaves were thoroughly covered with fine droplets. After 24 hours leaf tissue was harvested from 6 plants per treatment and pooled together into a single biological repeat. In total two or three independent biological repeats were collected. After harvesting leaf tissue was immediately frozen in liquid nitrogen until further analysis.