scholarly journals LBD29 regulates the cell cycle progression in response to auxin during lateral root formation in Arabidopsis thaliana

2012 ◽  
Vol 110 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Zhenhua Feng ◽  
Xudong Sun ◽  
Guangchao Wang ◽  
Hailiang Liu ◽  
Jian Zhu
Keyword(s):  
Cell Cycle ◽  
Arabidopsis Thaliana ◽  
Lateral Root ◽  
Cell Cycle Progression ◽  
Root Formation ◽  
Lateral Root Formation ◽  
Cycle Progression

scholarly journals Cell Cycle Progression in the Pericycle Is Not Sufficient for SOLITARY ROOT/IAA14-Mediated Lateral Root Initiation in Arabidopsis thaliana

2005 ◽  
Vol 17 (11) ◽  
pp. 3035-3050 ◽  
Author(s):  
Steffen Vanneste ◽  
Bert De Rybel ◽  
Gerrit T.S. Beemster ◽  
Karin Ljung ◽  
Ive De Smet ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Arabidopsis Thaliana ◽  
Lateral Root ◽  
Cell Cycle Progression ◽  
Root Initiation ◽  
Cycle Progression ◽  
Lateral Root Initiation

scholarly journals Lateral Root Priming Synergystically Arises from Root Growth and Auxin Transport Dynamics

2018 ◽  
Author(s):  
Thea van den Berg ◽  
Kirsten H. ten Tusscher
Keyword(s):  
Cell Cycle ◽  
Root Growth ◽  
Lateral Root ◽  
Root Formation ◽  
Growth Dynamics ◽  
Root Tip ◽  
Cycle Duration ◽  
Elongation Zone ◽  
Lateral Root Formation ◽  
Cell Cycle Duration

AbstractThe root system is a major determinant of plant fitness. Its capacity to supply the plant with sufficient water and nutrients strongly depends on root system architecture, which arises from the repeated branching off of lateral roots. A critical first step in lateral root formation is priming, which prepatterns sites competent of forming a lateral root. Priming is characterized by temporal oscillations in auxin, auxin signalling and gene expression in the root meristem, which through growth become transformed into a spatially repetitive pattern of competent sites. Previous studies have demonstrated the importance of auxin synthesis, transport and perception for the amplitude of these oscillations and their chances of producing an actual competent site. Additionally, repeated lateral root cap apoptosis was demonstrated to be strongly correlated with repetitive lateral root priming. Intriguingly, no single mutation has been identified that fully abolishes lateral root formation, and thusfar the mechanism underlying oscillations has remained unknown. In this study, we investigated the impact of auxin reflux loop properties combined with root growth dynamics on priming, using a computational approach. To this end we developed a novel multi-scale root model incorporating a realistic root tip architecture and reflux loop properties as well as root growth dynamics. Excitingly, in this model, repetitive auxin elevations automatically emerge. First, we show that root tip architecture and reflux loop properties result in an auxin loading zone at the start of the elongation zone, with preferential auxin loading in narrow vasculature cells. Second, we demonstrate how meristematic root growth dynamics causes regular alternations in the sizes of cells arriving at the elongation zone, which subsequently become amplified during cell expansion. These cell size differences translate into differences in cellular auxin loading potential. Combined, these properties result in temporal and spatial fluctuations in auxin levels in vasculature and pericycle cells. Our model predicts that temporal priming frequency predominantly depends on cell cycle duration, while cell cycle duration together with meristem size control lateral root spacing.

scholarly journals Arabidopsis thaliana RALF1 opposes brassinosteroid effects on root cell elongation and lateral root formation

2014 ◽  
Vol 65 (8) ◽  
pp. 2219-2230 ◽  
Author(s):  
Tábata Bergonci ◽  
Bianca Ribeiro ◽  
Paulo H.O. Ceciliato ◽  
Juan Carlos Guerrero-Abad ◽  
Marcio C. Silva-Filho ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Elongation ◽  
Lateral Root ◽  
Root Formation ◽  
Root Cell ◽  
Lateral Root Formation

scholarly journals Nitric oxide modulates the expression of cell cycle regulatory genes during lateral root formation in tomato

2006 ◽  
Vol 57 (3) ◽  
pp. 581-588 ◽  
Author(s):  
Natalia Correa-Aragunde ◽  
Magdalena Graziano ◽  
Christian Chevalier ◽  
Lorenzo Lamattina
Keyword(s):  
Nitric Oxide ◽  
Cell Cycle ◽  
Lateral Root ◽  
Root Formation ◽  
Regulatory Genes ◽  
Lateral Root Formation ◽  
Cell Cycle Regulatory Genes

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 A pathway for lateral root formation in Arabidopsis thaliana.

1995 ◽  
Vol 9 (17) ◽  
pp. 2131-2142 ◽  
Author(s):  
J L Celenza ◽  
P L Grisafi ◽  
G R Fink
Keyword(s):  
Arabidopsis Thaliana ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation

scholarly journals CKS1At overexpression in Arabidopsis thaliana inhibits growth by reducing meristem size and inhibiting cell-cycle progression

2001 ◽  
Vol 25 (6) ◽  
pp. 617-626 ◽  
Author(s):  
Lieven De Veylder ◽  
Gerrit T.S. Beemster ◽  
Tom Beeckman ◽  
Dirk Inzé
Keyword(s):  
Cell Cycle ◽  
Arabidopsis Thaliana ◽  
Cell Cycle Progression ◽  
Cycle Progression ◽  
Meristem Size
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