Peer reviews and editing Journal reviews e.g. for Bioinformatics, BMC Bioinformatics/Evol Biol/Genomics/Plant Biol, Cell, Current Biology, Genome Biol, Genome Biol Evol, J Exp Bot, J Mol Evol, Mol Biol Evol, Mol Plant, Nature/Nature Plants, New Phytologist, Plant Cell, Plant J, Plant Physiol, Planta, PNAS, Science; Associate Editor, The Plant Journal, BMC Plant Biology, Frontiers in Plant Science, Development and EvoDevo; grant reviews e.g. for BBSRC, CNRS/ANR, DFG, ERA, GIF, Marsden, NSF. Membership in scientific societies American Society of Plant Biologists (ASPB), Deutsche Botanische Gesellschaft (DBG), European Plant Science Organisation (EPSO), International Association of Bryologists (IAB), International Society of Endocytobiology (ISE), German Life Science Association (VBIO). President of the international molecular moss science society (iMOSS). Speaker of the section Plant Physiology and Molecular Plant Biology of the DBG.