1. Institute of Botany, Heinrich-Heine-University (HHU), Düsseldorf, Germany.
2. Space Microbiology Research Group, Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.
3. Institute of Optical Sensor Systems, German Aerospace Center (DLR), Berlin, Germany.
4. Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany.
5. Departamento de Observación de la Tierra, Instituto Nacional de Técnica Aeroespacial (INTA), Madrid, Spain.