1 Advanced Bioimaging Laboratory, Donald Danforth Plant Science Center, Saint Louis, MO, USA.
2 Electron Microscopy Unit, Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.
3 Euro-BioImaging ERIC Bio-Hub, European Molecular Biology Laboratory (EMBL) Heidelberg, Heidelberg, Germany.
4 Electron Microscopy Science Technology Platform, Francis Crick Institute, London, UK.
5 Electron Microscopy Unit, Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland. [email protected].