Root gravitropism requires lateral root cap and epidermal cells for transport and response to a mobile auxin signal by Ranjan Swarup and others

Nature Cell Biology7(2005),1057–1065; DOI10.1038/ncb1316. Primary abstract and Figures1,5–7; author-hosted original haseloff.plantsci.cam.ac.uk/resources/LabPapers/Swarup2005.pdf . Reused verified compact preparation plus publisher abstract; tissue-targeted AUX1 and axr3-1 experiments distinguish auxin transport from epidermal response.