Published in

Nature Research, Nature Cell Biology, 8(10), p. 946-954, 2008

DOI: 10.1038/ncb1754

Links

Tools

Export citation

Search in Google Scholar

The auxin influx carrier LAX3 promotes lateral root emergence

Journal article published in 2008 by Kamal Swarup, Eva Benkova, Ranjan Swarup, Ilda Casimiro, Benjamin Peret, Benjamin P., Yaodong Yang, Geraint Parry, Erik Nielsen, Ive De Smet ORCID, Steffen Vanneste ORCID, Mitch P. Levesque, David Carrier, Nicholas James, Vanessa Calvo and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Orange circle
Postprint: archiving restricted
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

Abstract

Lateral roots originate deep within the parental root from a small number of founder cells at the periphery of vascular tissues and must emerge through intervening layers of tissues. We describe how the hormone auxin, which originates from the developing lateral root, acts as a local inductive signal which re-programmes adjacent cells. Auxin induces the expression of a previously uncharacterized auxin influx carrier LAX3 in cortical and epidermal cells directly overlaying new primordia. Increased LAX3 activity reinforces the auxin-dependent induction of a selection of cell-wall-remodelling enzymes, which are likely to promote cell separation in advance of developing lateral root primordia.