Role of SVP in the control of flowering time by ambient temperature in Arabidopsis

Hwan Lee Jeong, Jeon Yoo Seong, Hyun Park Soo, Ildoo Hwang, Seob Lee Jong, Hoon Ahn Ji

Research output: Contribution to journalArticlepeer-review

510 Citations (Scopus)


Plants must perceive and rapidly respond to changes in ambient temperature for their successful reproduction. Here we demonstrate that Arabidopsis SHORT VEGETATIVE PHASE (SVP) plays an important role in the response of plants to ambient temperature changes. The loss of SVP function elicited insensitivity to ambient temperature changes. SVP mediates the temperature-dependent functions of FCA and FVE within the thermosensory pathway. SVP controls flowering time by negatively regulating the expression of a floral integrator, FLOWERING LOCUS T (FT), via direct binding to the CArG motifs in the FT sequence. We propose that this is one of the molecular mechanisms that modulate flowering time under fluctuating temperature conditions.

Original languageEnglish
Pages (from-to)397-402
Number of pages6
JournalGenes and Development
Issue number4
Publication statusPublished - 2007 Feb 15


  • Ambient temperature
  • FT
  • Floral repressor
  • SVP
  • The thermosensory pathway

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology


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