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Trends Plant Sci. 2009 Jul;14(7):399-408. doi: 10.1016/j.tplants.2009.05.002. Epub 2009 Jun 24.

Arabidopsis lateral root development: an emerging story.

Author information

1
Plant Sciences Division and Centre for Plant Integrative Biology, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, UK. malcolm.bennett@nottingham.ac.uk

Abstract

Lateral root formation is a major determinant of root systems architecture. The degree of root branching impacts the efficiency of water uptake, acquisition of nutrients and anchorage by plants. Understanding the regulation of lateral root development is therefore of vital agronomic importance. The molecular and cellular basis of lateral root formation has been most extensively studied in the plant model Arabidopsis thaliana (Arabidopsis). Significant progress has recently been made in identifying many new Arabidopsis genes that regulate lateral root initiation, patterning and emergence processes. We review how these studies have revealed that the plant hormone auxin represents a common signal that integrates these distinct yet interconnected developmental processes.

PMID:
19559642
DOI:
10.1016/j.tplants.2009.05.002
[Indexed for MEDLINE]

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