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AtERF#111/ABR1 is a transcriptional activator involved in the wounding response

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005004
URN to cite this document: urn:nbn:de:bvb:703-epub-5004-0

Title data

Bäumler, Judith ; Riber, Willi ; Klecker, Maria ; Müller, Leon ; Dissemeyer, Nico ; Weig, Alfons ; Mustroph, Angelika:
AtERF#111/ABR1 is a transcriptional activator involved in the wounding response.
In: The Plant Journal. Vol. 100 (6 August 2019) Issue 5 . - pp. 969-990.
ISSN 1365-313X
DOI der Verlagsversion: https://doi.org/10.1111/tpj.14490

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Abstract

AtERF#111/ABR1 belongs to the group X of the ERF/AP2 transcription factor family (GXERFs) and is shoot specifically induced under submergence and hypoxia. It was described to be an ABA‐response repressor, but our data reveal a completely different function. Surprisingly, AtERF#111 expression is strongly responsive to wounding stress. Expression profiling of ERF#111‐overexpressing (OE) plants, which show morphological phenotypes like increased root hair length and number, strengthens the hypothesis of AtERF#111 being involved in the wounding response, thereby acting as a transcriptional activator of gene expression. Consistent with a potential function outside of oxygen signalling, we could not assign AtERF#111 as a target of the PRT6 N‐degron pathway, even though it starts with a highly conserved N‐terminal Met−Cys (MC) motif. However, the protein is unstable as it is degraded in an ubiquitin‐dependent manner. Finally, direct target genes of AtERF#111 were identified by microarray analyses and subsequently confirmed by protoplast transactivation assays. The special roles of diverse members of the plant‐specific GXERFs in coordinating stress signalling and wound repair mechanisms have been recently hypothesized, and our data suggest that AtERF#111 is indeed involved in these processes.

Further data

Item Type: Article in a journal
Additional notes (visible to public): BAYCEER153020
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professor Plant Genetics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professor Plant Genetics > Professor Plant Genetics- Univ.Prof. Dr. Angelika Mustroph
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Research Institutions
Research Institutions > Research Centres
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-5004-0
Date Deposited: 14 Aug 2020 05:51
Last Modified: 14 Aug 2020 05:51
URI: https://epub.uni-bayreuth.de/id/eprint/5004

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