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Tightly controlled WRKY23 expression mediates Arabidopsis embryo development

Wim Grunewald UGent, Ive De Smet UGent, Bert De Rybel UGent, Helena Robert, Brigitte Van De Cotte UGent, Viola Willemsen, Godelieve Gheysen UGent, Dolf Weijers, Jiri Friml and Tom Beeckman UGent (2013) EMBO REPORTS. 14(12). p.1136-1142
abstract
The development of a multicellular embryo from a single zygote is a complex and highly organized process that is far from understood. In higher plants, apical-basal patterning mechanisms are crucial to correctly specify root and shoot stem cell niches that will sustain and drive post-embryonic plant growth and development. The auxin-responsive AtWRKY23 transcription factor is expressed from early embryogenesis onwards and the timing and localization of its expression overlaps with the root stem cell niche. Knocking down WRKY23 transcript levels or expression of a dominant-negative WRKY23 version via a translational fusion with the SRDX repressor domain affected both apical-basal axis formation as well as installation of the root stem cell niche. WRKY23 expression is affected by two well-known root stem cell specification mechanisms, that is, SHORTROOT and MONOPTEROS-BODENLOS signalling and can partially rescue the root-forming inability of mp embryos. On the basis of these results, we postulate that a tightly controlled WRKY23 expression is involved in the regulation of both auxin-dependent and auxin-independent signalling pathways towards stem cell specification.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
ROOT DEVELOPMENT, GENES, TRANSCRIPTION FACTOR, STEM-CELL NICHE, WRKY, embryogenesis, Arabidopsis, AXIS, REGULATORS, THALIANA, PROTEINS, ENCODES
journal title
EMBO REPORTS
EMBO Rep.
volume
14
issue
12
pages
1136 - 1142
Web of Science type
Article
Web of Science id
000327784500022
JCR category
BIOCHEMISTRY & MOLECULAR BIOLOGY
JCR impact factor
7.858 (2013)
JCR rank
26/291 (2013)
JCR quartile
1 (2013)
ISSN
1469-221X
DOI
10.1038/embor.2013.169
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4224234
handle
http://hdl.handle.net/1854/LU-4224234
date created
2014-01-08 10:05:44
date last changed
2016-12-19 15:43:18
@article{4224234,
  abstract     = {The development of a multicellular embryo from a single zygote is a complex and highly organized process that is far from understood. In higher plants, apical-basal patterning mechanisms are crucial to correctly specify root and shoot stem cell niches that will sustain and drive post-embryonic plant growth and development. The auxin-responsive AtWRKY23 transcription factor is expressed from early embryogenesis onwards and the timing and localization of its expression overlaps with the root stem cell niche. Knocking down WRKY23 transcript levels or expression of a dominant-negative WRKY23 version via a translational fusion with the SRDX repressor domain affected both apical-basal axis formation as well as installation of the root stem cell niche. WRKY23 expression is affected by two well-known root stem cell specification mechanisms, that is, SHORTROOT and MONOPTEROS-BODENLOS signalling and can partially rescue the root-forming inability of mp embryos. On the basis of these results, we postulate that a tightly controlled WRKY23 expression is involved in the regulation of both auxin-dependent and auxin-independent signalling pathways towards stem cell specification.},
  author       = {Grunewald, Wim and De Smet, Ive and De Rybel, Bert and Robert, Helena and Van De Cotte, Brigitte and Willemsen, Viola and Gheysen, Godelieve and Weijers, Dolf and Friml, Jiri and Beeckman, Tom},
  issn         = {1469-221X},
  journal      = {EMBO REPORTS},
  keyword      = {ROOT DEVELOPMENT,GENES,TRANSCRIPTION FACTOR,STEM-CELL NICHE,WRKY,embryogenesis,Arabidopsis,AXIS,REGULATORS,THALIANA,PROTEINS,ENCODES},
  language     = {eng},
  number       = {12},
  pages        = {1136--1142},
  title        = {Tightly controlled WRKY23 expression mediates Arabidopsis embryo development},
  url          = {http://dx.doi.org/10.1038/embor.2013.169},
  volume       = {14},
  year         = {2013},
}

Chicago
Grunewald, Wim, Ive De Smet, Bert De Rybel, Helena Robert, Brigitte Van De Cotte, Viola Willemsen, Godelieve Gheysen, Dolf Weijers, Jiri Friml, and Tom Beeckman. 2013. “Tightly Controlled WRKY23 Expression Mediates Arabidopsis Embryo Development.” Embo Reports 14 (12): 1136–1142.
APA
Grunewald, W., De Smet, I., De Rybel, B., Robert, H., Van De Cotte, B., Willemsen, V., Gheysen, G., et al. (2013). Tightly controlled WRKY23 expression mediates Arabidopsis embryo development. EMBO REPORTS, 14(12), 1136–1142.
Vancouver
1.
Grunewald W, De Smet I, De Rybel B, Robert H, Van De Cotte B, Willemsen V, et al. Tightly controlled WRKY23 expression mediates Arabidopsis embryo development. EMBO REPORTS. 2013;14(12):1136–42.
MLA
Grunewald, Wim, Ive De Smet, Bert De Rybel, et al. “Tightly Controlled WRKY23 Expression Mediates Arabidopsis Embryo Development.” EMBO REPORTS 14.12 (2013): 1136–1142. Print.