Fig. 1 in Polar auxin transport May Be responsive to specific features of flavonoid structure

Fig. 1. (a) Schematic of the Arabidopsis root meristem with each cell type. QC, quiescent center. CEI, cortex/endodermal initials. VI, vascular initials. LRC, lateral root cap. Ep, epidermis initials. CSC, columella stem cells. CC, columella Cells. (b) Schematic of polar auxin transport (PAT). (c) Basic flavonoid structures. (d) Structures of all known flavonoid inhibitors of PAT (Jacobs and Rubery 1988; Geldner et al., 2001; Laffont et al., 2010; Stenlid 1976). (e) Structures of the flavonoids tested in this study.