In this project moderate high pressure superdormant spores were isolated after a high pressure treatement at 150 MPa, 37°C for 4 min. Superdormant spores were defined as those who did not germinate after the pressure treatment. The proteins present in the superdormant spores were quantitatively compared to the initial dormant spore population. The aim of this project was to identify proteins which are potentially involved in moderate high pressure superdormancy.