scholarly journals The histone deacetylase HDA19 controls root cell elongation and modulates a subset of phosphate starvation responses in Arabidopsis

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Chun-Ying Chen ◽  
Keqiang Wu ◽  
Wolfgang Schmidt
Keyword(s):  
Histone Deacetylase ◽  
Cell Elongation ◽  
Phosphate Starvation ◽  
Root Cell

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 The Effects of High Steady State Auxin Levels on Root Cell Elongation in Brachypodium

2016 ◽  
Vol 28 (5) ◽  
pp. 1009-1024 ◽  
Author(s):  
David Pacheco-Villalobos ◽  
Sara M. Díaz-Moreno ◽  
Alja van der Schuren ◽  
Takayuki Tamaki ◽  
Yeon Hee Kang ◽  
...  
Keyword(s):  
Steady State ◽  
Cell Elongation ◽  
Root Cell

scholarly journals Identification of genes involved in the ACC-mediated control of root cell elongation in Arabidopsis thaliana

2012 ◽  
Vol 12 (1) ◽  
pp. 208 ◽  
Author(s):  
Marios Markakis ◽  
Tinne De Cnodder ◽  
Michal Lewandowski ◽  
Damien Simon ◽  
Agnieszka Boron ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Elongation ◽  
Root Cell

scholarly journals Disruption of Histone Deacetylase Gene RPD3 Accelerates PHO5 Activation Kinetics through Inappropriate Pho84p Recycling

2005 ◽  
Vol 4 (8) ◽  
pp. 1387-1395 ◽  
Author(s):  
Sriwan Wongwisansri ◽  
Paul J. Laybourn
Keyword(s):  
Histone Deacetylase ◽  
Cytoplasmic Membrane ◽  
Phosphate Uptake ◽  
Transcriptional Repressor ◽  
Phosphate Starvation ◽  
Phosphate Transporter ◽  
Regulatory Pathway ◽  
Activation Kinetics ◽  
High Affinity ◽  
Negative Role

ABSTRACT The histone deacetylase Rpd3p functions as a transcriptional repressor of a diverse set of genes, including PHO5. Here we describe a novel role for RPD3 in the regulation of phosphate transporter Pho84p retention in the cytoplasmic membrane. We show that under repressing conditions (with Pi), PHO5 expression is increased in a pho4Δ rpd3Δ strain, demonstrating PHO regulatory pathway independence. However, the effect of RPD3 disruption on PHO5 activation kinetics is dependent on the PHO regulatory pathway. Upon switching to activating conditions (without Pi), PHO5 transcripts accumulated more rapidly in rpd3Δ cells. This more rapid response correlates with a defect in phosphate uptake due to premature recycling of Pho84p, the high-affinity H+/PO4 3− symporter. Thus, RPD3 also participates in PHO5 regulation through a previously unidentified effect on maintenance of high-affinity phosphate uptake during phosphate starvation. We propose that Rpd3p has a negative role in the regulation of Pho84p endocytosis.

Reduced pectin content of cell walls prevents stress-induced root cell elongation in Arabidopsis

2020 ◽  
Author(s):  
Xiaohui Liu ◽  
Huiying Cui ◽  
Bochao Zhang ◽  
Min Song ◽  
Shaolin Chen ◽  
...  
Keyword(s):  
Cell Wall ◽  
Cell Elongation ◽  
Cell Walls ◽  
Microscopic Analysis ◽  
Root Cell ◽  
Cellulose Microfibrils ◽  
Composition Analysis ◽  
Cellulose Content ◽  
Cell Extension ◽  
Mechanistic Basis

Abstract The primary cell walls of plants provide mechanical strength while maintaining the flexibility needed for cell extension growth. Cell extension involves loosening the bonds between cellulose microfibrils, hemicelluloses and pectins. Pectins have been implicated in this process, but it remains unclear if this depends on the abundance of certain pectins, their modifications, and/or structure. Here, cell wall-related mutants of the model plant Arabidopsis were characterized by biochemical and immunohistochemical methods and Fourier-transform infrared microspectroscopy. Mutants with reduced pectin or hemicellulose content showed no root cell elongation in response to simulated drought stress, in contrast to wild-type plants or mutants with reduced cellulose content. While no association was found between the degrees of pectin methylesterification and cell elongation, cell wall composition analysis suggested an important role of the pectin rhamnogalacturonan II (RGII), which was corroborated in experiments with the RGII-modifying chemical 2β-deoxy-Kdo. The results were complemented by expression analysis of cell wall synthesis genes and microscopic analysis of cell wall porosity. It is concluded that a certain amount of pectin is necessary for stress-induced root cell elongation, and hypotheses regarding the mechanistic basis of this result are formulated.

scholarly journals Ethylene Upregulates Auxin Biosynthesis in Arabidopsis Seedlings to Enhance Inhibition of Root Cell Elongation

2007 ◽  
Vol 19 (7) ◽  
pp. 2186-2196 ◽  
Author(s):  
Ranjan Swarup ◽  
Paula Perry ◽  
Dik Hagenbeek ◽  
Dominique Van Der Straeten ◽  
Gerrit T.S. Beemster ◽  
...  
Keyword(s):  
Cell Elongation ◽  
Root Cell ◽  
Auxin Biosynthesis

scholarly journals RICE SALT SENSITIVE3 Forms a Ternary Complex with JAZ and Class-C bHLH Factors and Regulates Jasmonate-Induced Gene Expression and Root Cell Elongation

2013 ◽  
Vol 25 (5) ◽  
pp. 1709-1725 ◽  
Author(s):  
Yosuke Toda ◽  
Maiko Tanaka ◽  
Daisuke Ogawa ◽  
Kyo Kurata ◽  
Ken-ichi Kurotani ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cell Elongation ◽  
Ternary Complex ◽  
Root Cell ◽  
Bhlh Factors ◽  
Class C

scholarly journals The Effects of High Steady State Auxin Levels on Root Cell Elongation in Brachypodium

2016 ◽  
pp. tpc.01057.2016
Author(s):  
David Pacheco-Villalobos ◽  
Sara M. Díaz-Moreno ◽  
Alja van der Schuren ◽  
Takayuki Tamaki ◽  
Yeon Hee Kang ◽  
...  
Keyword(s):  
Steady State ◽  
Cell Elongation ◽  
Root Cell

scholarly journals Inhibition of fucosylation of cell wall components by 2‐fluoro 2‐deoxy‐ l ‐fucose induces defects in root cell elongation

2015 ◽  
Vol 84 (6) ◽  
pp. 1137-1151 ◽  
Author(s):  
Marie Dumont ◽  
Arnaud Lehner ◽  
Muriel Bardor ◽  
Carole Burel ◽  
Boris Vauzeilles ◽  
...  
Keyword(s):  
Cell Wall ◽  
Cell Elongation ◽  
Root Cell ◽  
Cell Wall Components ◽  
Wall Components
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