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The GATA factor HANABA TARANU is required to position the proembryo boundary in the early Arabidopsis embryo

Tal Nawy, Martin Bayer, Jozef Mravec UGent, Jiri Friml UGent, Kenneth D Birnbaum and Wolfgang Lukowitz (2010) DEVELOPMENTAL CELL. 19(1). p.103-113
abstract
Division of the Arabidopsis zygote defines two fundamentally different developmental domains, the proembryo and suspensor. The resulting boundary separates domain-specific gene expression, and a signal originating from the proembryo instructs the suspensor to generate the root stem cell niche. While root induction is known to require the phytohormone auxin and the Auxin Response Factor MONOPTEROS, it has remained largely elusive how the two domains involved in this process are initially specified. Here, we show that the GATA factor HANABA TARANU (HAN) is required to position the inductive proembryo boundary. Mutations in HAN cause a coordinated apical shift of gene expression patterns, revealing that HAN regulates transcription in the basal proembryo. Key auxin transporters are affected as early as the 8 cell stage, resulting in apical redistribution of auxin. Remarkably, han embryos eventually organize a root independent of MONOPTEROS and the suspensor around a new boundary marked by the auxin maximum.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TRANSCRIPTION FACTOR, STEM-CELL NICHE, APICAL-BASAL AXIS, VASCULAR DEVELOPMENT, AUXIN GRADIENTS, GENE MONOPTEROS, LATERAL ORGANS, ROOT, EXPRESSION, SHOOT
journal title
DEVELOPMENTAL CELL
Dev. Cell
volume
19
issue
1
pages
103 - 113
Web of Science type
Article
Web of Science id
000280469100014
JCR category
DEVELOPMENTAL BIOLOGY
JCR impact factor
13.946 (2010)
JCR rank
2/38 (2010)
JCR quartile
1 (2010)
ISSN
1534-5807
DOI
10.1016/j.devcel.2010.06.004
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1038852
handle
http://hdl.handle.net/1854/LU-1038852
date created
2010-09-08 19:12:59
date last changed
2012-09-19 14:03:55
@article{1038852,
  abstract     = {Division of the Arabidopsis zygote defines two fundamentally different developmental domains, the proembryo and suspensor. The resulting boundary separates domain-specific gene expression, and a signal originating from the proembryo instructs the suspensor to generate the root stem cell niche. While root induction is known to require the phytohormone auxin and the Auxin Response Factor MONOPTEROS, it has remained largely elusive how the two domains involved in this process are initially specified. Here, we show that the GATA factor HANABA TARANU (HAN) is required to position the inductive proembryo boundary. Mutations in HAN cause a coordinated apical shift of gene expression patterns, revealing that HAN regulates transcription in the basal proembryo. Key auxin transporters are affected as early as the 8 cell stage, resulting in apical redistribution of auxin. Remarkably, han embryos eventually organize a root independent of MONOPTEROS and the suspensor around a new boundary marked by the auxin maximum.},
  author       = {Nawy, Tal and Bayer, Martin and Mravec, Jozef and Friml, Jiri and Birnbaum, Kenneth D and Lukowitz, Wolfgang},
  issn         = {1534-5807},
  journal      = {DEVELOPMENTAL CELL},
  keyword      = {TRANSCRIPTION FACTOR,STEM-CELL NICHE,APICAL-BASAL AXIS,VASCULAR DEVELOPMENT,AUXIN GRADIENTS,GENE MONOPTEROS,LATERAL ORGANS,ROOT,EXPRESSION,SHOOT},
  language     = {eng},
  number       = {1},
  pages        = {103--113},
  title        = {The GATA factor HANABA TARANU is required to position the proembryo boundary in the early Arabidopsis embryo},
  url          = {http://dx.doi.org/10.1016/j.devcel.2010.06.004},
  volume       = {19},
  year         = {2010},
}

Chicago
Nawy, Tal, Martin Bayer, Jozef Mravec, Jiri Friml, Kenneth D Birnbaum, and Wolfgang Lukowitz. 2010. “The GATA Factor HANABA TARANU Is Required to Position the Proembryo Boundary in the Early Arabidopsis Embryo.” Developmental Cell 19 (1): 103–113.
APA
Nawy, T., Bayer, M., Mravec, J., Friml, J., Birnbaum, K. D., & Lukowitz, W. (2010). The GATA factor HANABA TARANU is required to position the proembryo boundary in the early Arabidopsis embryo. DEVELOPMENTAL CELL, 19(1), 103–113.
Vancouver
1.
Nawy T, Bayer M, Mravec J, Friml J, Birnbaum KD, Lukowitz W. The GATA factor HANABA TARANU is required to position the proembryo boundary in the early Arabidopsis embryo. DEVELOPMENTAL CELL. 2010;19(1):103–13.
MLA
Nawy, Tal, Martin Bayer, Jozef Mravec, et al. “The GATA Factor HANABA TARANU Is Required to Position the Proembryo Boundary in the Early Arabidopsis Embryo.” DEVELOPMENTAL CELL 19.1 (2010): 103–113. Print.