Veronica Grieneisen (John Innes Centre) shows much excitement for her science as we discuss a recent PNAS paper entitled ‘Auxin minimum triggers the developmental switch from cell division to cell differentiation in the Arabidopsis root’ http://www.pnas.org/content/early/2017/08/17/1705833114.abstract https://www.jic.ac.uk/directory/veronica-grieneisen/