Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity
Show others and affiliations
2018 (English)In: PLoS Genetics, ISSN 1553-7390, E-ISSN 1553-7404, Vol. 14, no 1, article id e1007177Article in journal (Refereed) Published
Abstract [en]

Auxin is unique among plant hormones due to its directional transport that is mediated by the polarly distributed PIN auxin transporters at the plasma membrane. The canalization hypothesis proposes that the auxin feedback on its polar flow is a crucial, plant-specific mechanism mediating multiple self-organizing developmental processes. Here, we used the auxin effect on the PIN polar localization in Arabidopsis thaliana roots as a proxy for the auxin feedback on the PIN polarity during canalization. We performed microarray experiments to find regulators of this process that act downstream of auxin. We identified genes that were transcriptionally regulated by auxin in an AXR3/IAA17-and ARF7/ARF19-dependent manner. Besides the known components of the PIN polarity, such as PID and PIP5K kinases, a number of potential new regulators were detected, among which the WRKY23 transcription factor, which was characterized in more detail. Gain-and loss-of-function mutants confirmed a role for WRKY23 in mediating the auxin effect on the PIN polarity. Accordingly, processes requiring auxin-mediated PIN polarity rearrangements, such as vascular tissue development during leaf venation, showed a higher WRKY23 expression and required the WRKY23 activity. Our results provide initial insights into the auxin transcriptional network acting upstream of PIN polarization and, potentially, canalization-mediated plant development.

Place, publisher, year, edition, pages
PUBLIC LIBRARY SCIENCE , 2018. Vol. 14, no 1, article id e1007177
National Category
Developmental Biology
Identifiers
URN: urn:nbn:se:umu:diva-144963DOI: 10.1371/journal.pgen.1007177ISI: 000423718600034OAI: oai:DiVA.org:umu-144963DiVA, id: diva2:1184600
Available from: 2018-02-21 Created: 2018-02-21 Last updated: 2018-06-09Bibliographically approved

Open Access in DiVA

fulltext(24230 kB)19 downloads
File information
File name FULLTEXT01.pdfFile size 24230 kBChecksum SHA-512
f116aaa421424b96242c25e9ab9143874d0582874c7529087e22e58e829953ab5b889905ba406b2df4fea270aa397c50ddafaadc02d1730b7bf1498b2ef45cff
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Tejos, RicardoSchmid, Markus
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
In the same journal
PLoS Genetics
Developmental Biology

Search outside of DiVA

GoogleGoogle Scholar
Total: 19 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 38 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf