Root apex transition zone: a signalling-response nexus in the root

被引：208

作者：

Baluska, Frantisek ^{[1
]}

Mancuso, Stefano ^{[2
]}

Volkmann, Dieter ^{[1
]}

Barlow, Peter W. ^{[3
]}

机构：

[1] Univ Bonn, IZMB, D-53115 Bonn, Germany

[2] Univ Florence, LINV, I-50019 Sesto Fiorentino, FI, Italy

[3] Univ Bristol, Sch Biol Sci, Bristol BS8 1UG, Avon, England

来源：

TRENDS IN PLANT SCIENCE | 2010年 / 15卷 / 07期

关键词：

AUXIN TRANSPORT INHIBITORS; EFFLUX CARRIER; DIFFERENTIAL GROWTH; VESICLE TRAFFICKING; ARABIDOPSIS ROOTS; ELONGATION ZONE; PLASMA-MEMBRANE; BASAL MERISTEM; MAIZE ROOTS; PIN;

D O I：

10.1016/j.tplants.2010.04.007

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Longitudinal zonation, as well as a simple and regular anatomy, are hallmarks of the root apex. Here we focus on one particular root-apex zone, the transition zone, which is located between the apical meristem and basal elongation region. This zone has a unique role as the determiner of cell fate and root growth; this is accomplished by means of the complex system of a polar auxin transport circuit. The transition zone also integrates diverse inputs from endogenous (hormonal) and exogenous (sensorial) stimuli and translates them into signalling and motoric outputs as adaptive differential growth responses. These underlie the root-apex tropisms and other aspects of adaptive root behaviour.

引用

页码：402 / 408

页数：7

共 112 条

[1] Intracellular trafficking and proteolysis of the Arabidopsis auxin-efflux facilitator PIN2 are involved in root gravitropism [J].