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  • 1
    Publication Date: 2013-09-14
    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.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Jeong Hwan -- Ryu, Hak-Seung -- Chung, Kyung Sook -- Pose, David -- Kim, Soonkap -- Schmid, Markus -- Ahn, Ji Hoon -- New York, N.Y. -- Science. 2013 Nov 1;342(6158):628-32. doi: 10.1126/science.1241097. Epub 2013 Sep 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Creative Research Initiatives, Department of Life Sciences, Korea University, Seoul 136-701, South Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="" target="_blank"〉PubMed〈/a〉
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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