Design principles of a minimal auxin response system.Hirotaka Kato, Sumanth K Mutte, Hidemasa Suzuki, Isidro Crespo, Shubhajit Das, Tatyana Radoeva, Mattia Fontana, Yoshihiro Yoshitake, Emi Hainiwa, Willy van den Berg, Simon Lindhoud, Kimitsune Ishizaki, Johannes Hohlbein, Jan Willem Borst, D Roeland Boer, Ryuichi Nishihama, Takayuki Kohchi, Dolf Weijers