Li, Lanxin, Gabriel Krens, Matyas Fendrych, and Jií Friml. “Real-Time Analysis of Auxin Response, Cell Wall PH and Elongation in Arabidopsis Thaliana Hypocotyls.”https://doi.org/10.21769/BioProtoc.2685__Bio-Protocol. Bio-protocol, 2018.https://doi.org/10.21769/BioProtoc.2685 .