SnRK2.10 kinase differentially modulates expression of hub WRKY transcription factors genes under salinity and oxidative stress in Arabidopsis thaliana

In nature, all living organisms must continuously sense their surroundings and react to the occurring changes. cell, information about these changes is transmitted cellular compartments, including nucleus, by multiple phosphorylation cascades. Sucrose Non-Fermenting 1 Related Protein Kinases (SnRK2s) are plant-specific enzymes widely distributed across plant kingdom key players controlling abscisic acid (ABA)-dependent ABA-independent signaling pathways in response osmotic stress salinity. The main deleterious effects of salinity comprise water deficiency stress, disturbances ion balance, accompanying appearance oxidative stress. reactive oxygen species (ROS) generated at early stages salt involved triggering intracellular required for fast modulation gene expression. Here we established Arabidopsis thaliana that or induction ROS accumulation treatment plants with H 2 O methyl viologen (MV) induces expression several genes encoding transcription factors (TFs) from WRKY DNA-Binding (WRKY) family. Their was dependent on SnRK2.10, an ABA non-activated kinase, as it strongly reduced snrk2.10 mutants. effect clearly source. Following treatment, SnRK2.10 activated wild-type (wt) TFs only moderate enhanced lines. contrast, MV did not activate very strong similar wt plants. A bioinformatic analysis indicated WRKY33, WRKY40, WRKY46 , WRKY75 have a target range comprising numerous stress-responsive protein kinases. Our results indicate stress-related functioning fine-tuned source distribution co-occurrence other factors.