scholarly journals Lateral root formation involving cell division in both pericycle, cortex and endodermis is a common and ancestral trait in seed plants

Development ◽  
2019 ◽  
Vol 146 (20) ◽  
pp. dev182592 ◽  
Author(s):  
Ting Ting Xiao ◽  
Robin van Velzen ◽  
Olga Kulikova ◽  
Carolien Franken ◽  
Ton Bisseling
Keyword(s):  
Cell Division ◽  
Lateral Root ◽  
Root Formation ◽  
Seed Plants ◽  
Lateral Root Formation

scholarly journals The E2FC-DPB Transcription Factor Controls Cell Division, Endoreplication and Lateral Root Formation in a SCFSKP2A- Dependent Manner

2007 ◽  
Vol 2 (4) ◽  
pp. 273-274 ◽  
Author(s):  
Juan c. del Pozo ◽  
Sara Diaz-Trivino ◽  
Nerea Cisneros ◽  
Crisanto Gutierrez
Keyword(s):  
Transcription Factor ◽  
Cell Division ◽  
Lateral Root ◽  
Root Formation ◽  
Dependent Manner ◽  
Lateral Root Formation

scholarly journals The expa1-1 mutant reveals a new biophysical lateral root organogenesis checkpoint

2018 ◽  
Author(s):  
Priya Ramakrishna ◽  
Graham A Rance ◽  
Lam Dai Vu ◽  
Evan Murphy ◽  
Kamal Swarup ◽  
...  
Keyword(s):  
Cell Division ◽  
Root System ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Roots ◽  
Lateral Root Formation ◽  
Asymmetric Cell Divisions ◽  
Cell Divisions ◽  
Root Organogenesis ◽  
Pericycle Cells

ABSTRACTIn plants, post-embryonic formation of new organs helps shape the adult organism. This requires the tight regulation of when and where a new organ is formed, and a coordination of the underlying cell divisions. To build a root system, new lateral roots are continuously developing, and this process requires asymmetric cell division in adjacent pericycle cells. Characterization of an expansin a1 (expa1) mutant has revealed a novel checkpoint during lateral root formation. Specifically, a minimal pericycle width was found to be necessary and sufficient to trigger asymmetric pericycle cell divisions during auxin-driven lateral root formation. We conclude that a localized radial expansion of adjacent pericycle cells is required to position the asymmetric cell divisions and generate a core of small daughter cells, which is a prerequisite for lateral root organogenesis.SIGNFICANCE STATEMENTOrgan formation is an essential process in plants and animals, driven by cell division and cell identity establishment. Root branching, where lateral roots form along the primary root axis, increases the root system and aids capture of water and nutrients. We have discovered that tight control of cell width is necessary to co-ordinate asymmetric cell divisions in cells that give rise to a new lateral root organ. While biomechanical processes have been shown to play a role in plant organogenesis, including lateral root formation, our data give new mechanistic insights into the cell size checkpoint during lateral root initiation.

Lateral root formation and nutrients: nitrogen in the spotlight

2021 ◽  
Author(s):  
Pierre-Mathieu Pélissier ◽  
Hans Motte ◽  
Tom Beeckman
Keyword(s):  
Signaling Pathways ◽  
Root System ◽  
Root Development ◽  
Lateral Root ◽  
Molecular Mechanisms ◽  
Root Formation ◽  
Lateral Roots ◽  
Nutrient Use Efficiency ◽  
Lateral Root Formation ◽  
Lateral Root Development

Abstract Lateral roots are important to forage for nutrients due to their ability to increase the uptake area of a root system. Hence, it comes as no surprise that lateral root formation is affected by nutrients or nutrient starvation, and as such contributes to the root system plasticity. Understanding the molecular mechanisms regulating root adaptation dynamics towards nutrient availability is useful to optimize plant nutrient use efficiency. There is at present a profound, though still evolving, knowledge on lateral root pathways. Here, we aimed to review the intersection with nutrient signaling pathways to give an update on the regulation of lateral root development by nutrients, with a particular focus on nitrogen. Remarkably, it is for most nutrients not clear how lateral root formation is controlled. Only for nitrogen, one of the most dominant nutrients in the control of lateral root formation, the crosstalk with multiple key signals determining lateral root development is clearly shown. In this update, we first present a general overview of the current knowledge of how nutrients affect lateral root formation, followed by a deeper discussion on how nitrogen signaling pathways act on different lateral root-mediating mechanisms for which multiple recent studies yield insights.

scholarly journals Involvement of cytokinins in adventitious and lateral root formation

Plant Root ◽  
2007 ◽  
Vol 1 ◽  
pp. 27-33 ◽  
Author(s):  
Takeshi Kuroha ◽  
Shinobu Satoh
Keyword(s):  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation

scholarly journals Cross–talk between nitric oxide and Ca2+in elevated CO2-induced lateral root formation

2013 ◽  
Vol 8 (2) ◽  
pp. e23106 ◽  
Author(s):  
Huan Wang ◽  
Yaofang Niu ◽  
Rushan Chai ◽  
Miao Liu ◽  
Yongsong Zhang
Keyword(s):  
Nitric Oxide ◽  
Elevated Co2 ◽  
Cross Talk ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation

scholarly journals ARF7 and ARF19 Regulate Lateral Root Formation via Direct Activation of LBD/ASL Genes in Arabidopsis

2007 ◽  
Vol 19 (1) ◽  
pp. 118-130 ◽  
Author(s):  
Yoko Okushima ◽  
Hidehiro Fukaki ◽  
Makoto Onoda ◽  
Athanasios Theologis ◽  
Masao Tasaka
Keyword(s):  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation ◽  
Direct Activation

scholarly journals DFL1, an auxin-responsive GH3 gene homologue, negatively regulates shoot cell elongation and lateral root formation, and positively regulates the light response of hypocotyl length

2008 ◽  
Vol 25 (2) ◽  
pp. 213-221 ◽  
Author(s):  
Miki Nakazawa ◽  
Naoto Yabe ◽  
Takanari Ichikawa ◽  
Yoshiharu Y. Yamamoto ◽  
Takeshi Yoshizumi ◽  
...  
Keyword(s):  
Cell Elongation ◽  
Lateral Root ◽  
Root Formation ◽  
Light Response ◽  
Lateral Root Formation ◽  
Hypocotyl Length ◽  
Gene Homologue
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