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

Identification, characterization of an AP2/ERF transcription factor that promotes adventitious, lateral root formation in Populus

Planta ◽  
2013 ◽  
Vol 238 (2) ◽  
pp. 271-282 ◽  
Author(s):  
Dalila Trupiano ◽  
Yordan Yordanov ◽  
Sharon Regan ◽  
Richard Meilan ◽  
Timothy Tschaplinski ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation ◽  
Erf Transcription Factor

scholarly journals Chrysanthemum transcription factor CmLBD1 direct lateral root formation in Arabidopsis thaliana

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Lu Zhu ◽  
Chen Zheng ◽  
Ruixia Liu ◽  
Aiping Song ◽  
Zhaohe Zhang ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation

scholarly journals PICKLE recruits RETINOBLASTOMA RELATED 1 to Control Lateral Root Formation in Arabidopsis

2019 ◽  
Author(s):  
Krisztina Ötvös ◽  
Pál Miskolczi ◽  
Peter Marhavý ◽  
Alfredo Cruz-Ramírez ◽  
Eva Benková ◽  
...  
Keyword(s):  
Chromatin Remodeling ◽  
Lateral Root ◽  
Promoter Activity ◽  
Root Formation ◽  
Auxin Signaling ◽  
Dependent Manner ◽  
Lateral Root Formation ◽  
Transcriptional Responses ◽  
Dividing Cells ◽  
Lateral Organ

AbstractLateral root (LR) formation is an example of plant post-embryonic organogenesis event. LRs are issued from non-dividing cells entering consecutive steps of formative divisions, proliferation and elongation. The chromatin remodeling protein PICKLE negatively regulates auxin-mediated LR formation through a mechanism that is not yet known. Here we show that PICKLE interacts with RETINOBLASTOMA-RELATED 1 (RBR1) to repress the LATERAL ORGAN BOUNDARIES-DOMAIN 16 (LBD16) promoter activity. Since LBD16 function is required for the formative division of LR founder cells, repression mediated by the PKL-RBR1 complex negatively regulates formative division and LR formation. Inhibition of LR formation by PKL-RBR1 is counteracted by auxin indicating that in addition to auxin-mediated transcriptional responses, the fine-tuned process of LR formation is also controlled at the chromatin level in an auxin-signaling dependent manner.

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.

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 Pickle Recruits Retinoblastoma Related 1 to Control Lateral Root Formation in Arabidopsis

2021 ◽  
Vol 22 (8) ◽  
pp. 3862
Author(s):  
Krisztina Ötvös ◽  
Pál Miskolczi ◽  
Peter Marhavý ◽  
Alfredo Cruz-Ramírez ◽  
Eva Benková ◽  
...  
Keyword(s):  
Chromatin Remodeling ◽  
Lateral Root ◽  
Promoter Activity ◽  
Root Formation ◽  
Auxin Signaling ◽  
Dependent Manner ◽  
Lateral Root Formation ◽  
Transcriptional Responses ◽  
Dividing Cells ◽  
Lateral Organ

Lateral root (LR) formation is an example of a plant post-embryonic organogenesis event. LRs are issued from non-dividing cells entering consecutive steps of formative divisions, proliferation and elongation. The chromatin remodeling protein PICKLE (PKL) negatively regulates auxin-mediated LR formation through a mechanism that is not yet known. Here we show that PKL interacts with RETINOBLASTOMA-RELATED 1 (RBR1) to repress the LATERAL ORGAN BOUNDARIES-DOMAIN 16 (LBD16) promoter activity. Since LBD16 function is required for the formative division of LR founder cells, repression mediated by the PKL–RBR1 complex negatively regulates formative division and LR formation. Inhibition of LR formation by PKL–RBR1 is counteracted by auxin, indicating that, in addition to auxin-mediated transcriptional responses, the fine-tuned process of LR formation is also controlled at the chromatin level in an auxin-signaling dependent manner.

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.

Sign in / Sign up

Export Citation Format

Share Document