Root branching: mechanisms, robustness, and plasticity

被引:30
作者
Dastidar, Mouli Ghosh [1 ]
Jouannet, Virginie [1 ]
Maizel, Alexis [1 ]
机构
[1] Heidelberg Univ, Ctr Organismal Studies, Dept Stem Cell Biol, Heidelberg, Germany
关键词
AUXIN-RESPONSE-FACTOR; LOB-DOMAIN PROTEIN; SYSTEM ARCHITECTURE; CELL-CYCLE; SENSITIVE CHECKPOINT; ARABIDOPSIS-THALIANA; TRANSPORT; GENE; INITIATION; EXPRESSION;
D O I
10.1002/wdev.17
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Plants are sessile organisms that must efficiently exploit their habitat for water and nutrients. The degree of root branching impacts the efficiency of water uptake, acquisition of nutrients, and anchorage. The root system of plants is a dynamic structure whose architecture is determined by modulation of primary root growth and root branching. This plasticity relies on the continuous integration of environmental inputs and endogenous developmental programs controlling root branching. This review focuses on the cellular and molecular mechanisms involved in the regulation of lateral root distribution, initiation, and organogenesis with the main focus on the root system of Arabidopsis thaliana. We also examine the mechanisms linking environmental changes to the developmental pathways controlling root branching. Recent progress that emphasizes the parallels to the formation of root branches in other species is discussed. (C) 2011 Wiley Periodicals, Inc.
引用
收藏
页码:329 / 343
页数:15
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