The pathogenesis-related 1 (PR1) protein is frequently used for biotic stress monitoring in plants. Until now, the molecular mechanisms of its cellular processing, localization, and function were still unknown. In this work, we performed a comparative analysis of localization, trafficking, proteolysis, and immunity effects of A. thaliana PR1 and its truncated/mutated variants.

Pečenková T*, Pejchar P, Moravec T, Drs M, Haluška S, Šantrůček J, Potocká A, Žárský V, Potocký M*. (2022) Immunity functions of Arabidopsis pathogenesis-related 1 are coupled but not confined to its C-terminus processing and trafficking. Molecular Plant Pathology in press DOI:10.1111/mpp.13187