Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example XY 2D X‐ray computer tomography images travelling down the column showing (a) root growth towards a pore and (b) root growth past a pore. The pore is shown in black, the root is highlighted in blue, and the growth path is shown by the red arrow. Scale bars = 2 mm [Colour figure can be viewed at http://wileyonlinelibrary.com]
