The Root Transition Zone: A Hot Spot for Signal Crosstalk

Xiangpei Kong; Guangchao Liu; Jiajia Liu; Zhaojun Ding

doi:10.1016/j.tplants.2018.02.004

The Root Transition Zone: A Hot Spot for Signal Crosstalk

Trends Plant Sci. 2018 May;23(5):403-409. doi: 10.1016/j.tplants.2018.02.004. Epub 2018 Feb 27.

Authors

Xiangpei Kong¹, Guangchao Liu², Jiajia Liu³, Zhaojun Ding⁴

Affiliations

¹ The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, 250100, Shandong, China; These authors contributed equally to this work. Electronic address: xpkong@sdau.edu.
² The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, 250100, Shandong, China; These authors contributed equally to this work.
³ The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, 250100, Shandong, China.
⁴ The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, 250100, Shandong, China. Electronic address: dingzhaojun@sdu.edu.cn.

PMID: 29500073
DOI: 10.1016/j.tplants.2018.02.004

Abstract

The root transition zone (TZ), located between the apical meristem and basal elongation region, has a unique role in root growth and development. The root TZ is not only the active site for hormone crosstalk, but also the perception site for various environmental cues, such as aluminum (Al) stress and low phosphate (Pi) stress. We propose that the root TZ is a hot spot for the integration of diverse inputs from endogenous (hormonal) and exogenous (sensorial) stimuli to control root growth.

Keywords: Al stress; low Pi; plant hormone; root development; transition zone.

Publication types

Research Support, Non-U.S. Gov't
Review

MeSH terms

Aluminum / metabolism
Gene Expression Regulation, Developmental*
Gene Expression Regulation, Plant*
Meristem / genetics*
Meristem / growth & development
Meristem / metabolism
Phosphates / metabolism
Plant Growth Regulators / metabolism
Plant Roots / genetics*
Plant Roots / growth & development
Plant Roots / metabolism
Signal Transduction / genetics

Substances

Phosphates
Plant Growth Regulators
Aluminum