CDPKs in priming in response to low temperature in Arabidopsis thaliana (A04)

• Subject Area: Plant Biochemistry and Biophysics
• Term: from 2012 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 190578797

Project A4 addresses the functional role of CDPKs in cold priming of Arabidopsis thaliana. In line with our working hypothesis, cold primed plants display improved tolerance to later cold stress. We have identified one distinct CPK isoform as a negative regulator of cold priming, and cpk mutant plants display enhanced frost tolerance, accompanied by corresponding alterations in transcript-, metabolite-, and lipid-accumulation patterns. Future analysis will investigate the biochemical regulation of the enzyme, and ¿ by assessment of co-expressed genes in a priming/memory context ¿ the identification of transcriptional regulators as potential CPK phosphorylation targets.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 973: Priming and Memory of Organismic Responses to Stress
• Applicant Institution: Freie Universität Berlin
• Project Heads: Dr. Britta Ehlert, until 6/2016; Professorin Dr. Tina Romeis