Simon Stael

This paper identifies OEF18 as a membrane-anchored Ca²⁺ sensor in chloroplasts and peroxisomes that links calcium signaling to jasmonate-mediated defense and stress responses in plants.

This study identifies a two-stage proteolytic pathway for maize phytocytokine Zip1 maturation and release, revealing spatial and temporal control of immune signaling.

The paper introduces genetically encoded FRET sensors to detect protease activities in plants, demonstrating their use in monitoring metacaspase and Tobacco Etch Virus protease in vivo.

This study shows that starvation-induced autophagy in Chlamydomonas occurs without the ATG1 complex, suggesting an alternative pathway for autophagy initiation.

The paper investigates the Ca2+ response in Arabidopsis thaliana chloroplasts triggered by high light exposure mimicked by glass beads, revealing a biphasic increase and identifying the endoplasmic reticulum as the source.

This study shows that lack of AtMC1 catalytic activity causes autoimmunity in Arabidopsis, which depends on NLR stability and can be reversed by overexpressing SNIPER1.

The paper identifies novel substrates of separase in Arabidopsis by analyzing proteolytic changes in wild-type and separase mutant root tip cells, revealing roles in pH homeostasis, lipid signaling, and proteolytic network interactions.