title: Tribute: in memory of Professor Dr. Dr. h.c. André Pirson, a pioneerin photosynthesis and a dedicated academic teacher.
authors.affiliation: FB Biologie Botanik, Philipps-Universität Marburg, Karl-von-Frisch-Straße/Lahnberge, Germany).
authors.forename: Horst
authors.initials: H
authors.lastname: Senger