Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 66, Issue 4, Pages 1099-1112Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/eru529
Keywords
Abiotic stress; Arabidopsis thaliana; light; nutrients; plant hormones; root growth; root system architecture; water availability
Categories
Funding
- Austrian Academy of Science through Gregor Mendel Institute
- Vienna Science and Technology Fund (WWTF)
- EU FP7 COFUND PLANT FELLOWS grant
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Plants display a high degree of phenotypic plasticity that allows them to tune their form and function to changing environments. The plant root system has evolved mechanisms to anchor the plant and to efficiently explore soils to forage for soil resources. Key to this is an enormous capacity for plasticity of multiple traits that shape the distribution of roots in the soil. Such root system architecture-related traits are determined by root growth rates, root growth direction, and root branching. In this review, we describe how the root system is constituted, and which mechanisms, pathways, and genes mainly regulate plasticity of the root system in response to environmental variation.
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