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          Institute: MPI für Entwicklungsbiologie     Collection: Abteilung 6 - Molecular Biology (D. Weigel)     Display Documents



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ID: 681895.0, MPI für Entwicklungsbiologie / Abteilung 6 - Molecular Biology (D. Weigel)
Regulation of temperature-responsive flowering by MADS-box transcription factor repressors
Authors:Lee, J. H.; Ryu, H. S.; Chung, K. S.; Pose, D.; Kim, S.; Schmid, M.; Ahn, J. H.
Language:English
Date of Publication (YYYY-MM-DD):2013-11-01
Title of Journal:Science
Journal Abbrev.:Science
Volume:342
Issue / Number:6158
Start Page:628
End Page:632
Sequence Number of Article:24030492
Review Status:Internal review
Audience:Experts Only
Abstract / Description:Changes in ambient temperature affect flowering time in plants; understanding this phenomenon will be crucial for buffering agricultural systems from the effects of climate change. Here, we show that levels of FLM-beta, an alternatively spliced form of the flowering repressor FLOWERING LOCUS M, increase at lower temperatures, repressing flowering. FLM-beta interacts with SHORT VEGETATIVE PHASE (SVP); SVP is degraded at high temperatures, reducing the abundance of the SVP-FLM-beta repressor complex and, thus, allowing the plant to flower. The svp and flm mutants show temperature-insensitive flowering in different temperature ranges. Control of SVP-FLM-beta repressor complex abundance via transcriptional and splicing regulation of FLM and posttranslational regulation of SVP protein stability provides an efficient, rapid mechanism for plants to respond to ambient temperature changes.
Free Keywords:Alternative Splicing; Arabidopsis/genetics/*growth & development/metabolism; Arabidopsis Proteins/genetics/*metabolism; Flowers/genetics/*growth & development/metabolism; Gene Expression Regulation, Plant; MADS Domain Proteins/genetics/*metabolism; Molecular Sequence Data; Mutation; Repressor Proteins/genetics/*metabolism; Temperature; Transcription Factors/genetics/*metabolism
External Publication Status:published
Document Type:Article
Affiliations:MPI für Entwicklungsbiologie/Abteilung 6 - Molekulare Biologie (Detlef Weigel)
External Affiliations:Creative Research Initiatives, Department of Life Sciences, Korea University, Seoul 136-701, South Korea.
Identifiers:ISSN:1095-9203 (Electronic) 0036-8075 (Linking) %R 10.1... [ID No:1]
URL:http://www.ncbi.nlm.nih.gov/pubmed/24030492 [ID No:2]
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