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| ID:
695210.0,
MPI für Entwicklungsbiologie / Abteilung 5 - Cell Biology (G. Jürgens) |
| Transcriptional repression of BODENLOS by HD-ZIP transcription factor HB5 in Arabidopsis thaliana |
| Authors: | De Smet, I.; Lau, S.; Ehrismann, J. S.; Axiotis, I.; Kolb, M.; Kientz, M.; Weijers, D.; Jurgens, G. | | Language: | English | | Date of Publication (YYYY-MM-DD): | 2013-07 | | Title of Journal: | Journal of Experimental Botany | | Journal Abbrev.: | J Exp Bot | | Volume: | 64 | | Issue / Number: | 10 | | Start Page: | 3009 | | End Page: | 3019 | | Sequence Number of Article: | 23682118 | | Review Status: | Internal review | | Audience: | Experts Only | | Abstract / Description: | In Arabidopsis thaliana, the phytohormone auxin is an important patterning agent during embryogenesis and post-embryonic development, exerting effects through transcriptional regulation. The main determinants of the transcriptional auxin response machinery are AUXIN RESPONSE FACTOR (ARF) transcription factors and AUXIN/INDOLE-3-ACETIC ACID (AUX/IAA) inhibitors. Although members of these two protein families are major developmental regulators, the transcriptional regulation of the genes encoding them has not been well explored. For example, apart from auxin-linked regulatory inputs, factors regulating the expression of the AUX/IAA BODENLOS (BDL)/IAA12 are not known. Here, it was shown that the HOMEODOMAIN-LEUCINE ZIPPER (HD-ZIP) transcription factor HOMEOBOX PROTEIN 5 (HB5) negatively regulates BDL expression, which may contribute to the spatial control of BDL expression. As such, HB5 and probably other class I HD-ZIP proteins, appear to modulate BDL-dependent auxin response. | | Free Keywords: | Arabidopsis/chemistry/genetics/*metabolism; Arabidopsis Proteins/chemistry/*genetics/*metabolism; *Down-Regulation; *Gene Expression Regulation, Plant; Homeodomain Proteins/chemistry/genetics/*metabolism; Indoleacetic Acids/metabolism; Leucine Zippers; Plant Growth Regulators/metabolism; Repressor Proteins/*genetics/metabolism; Transcription Factors/chemistry/genetics/*metabolism | | External Publication Status: | published | | Document Type: | Article |
| Communicated by: | edocabt5 | | Affiliations: | MPI für Entwicklungsbiologie/Abteilung 5 - Zellbiologie (Gerd Jürgens)
| | Identifiers: | ISSN:1460-2431 (Electronic) 0022-0957 (Linking) %R 10.1... [ID No:1]
URL:http://www.ncbi.nlm.nih.gov/pubmed/23682118 [ID No:2] | |
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