Role of SEPALLATA3 (SEP3) as a downstream gene of miR156-SPL3-FT circuitry in ambient temperature-responsive flowering

Jeong Hwan Lee, Jae Joon Kim, Ji Hoon Ahn

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

SEPALLATA3 (SEP3) is important in determining flowering time as well as floral organ identity. although much is known about the regulation of floral organ identity by SEP3, its role as a downstream gene of FLOWERING LOCUS T (FT) for the regulation of ambient temperature-responsive flowering is poorly understood. here, we show that SEP3 as a downstream gene of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE3 (SPL3) and FT modulates the flowering time in response to different ambient temperatures. SEP3 overexpression showed temperature-insensitive flowering at 23°C and 16°C. this suggests that altered SEP3 activity affects ambient temperature-responsive flowering. however, a lesion in SEP3 did not obviously affect ambient temperature-responsive flowering. SEP3 expression was affected by altered SPL3 and FT activities in the leaf and shoot apical regions at different temperatures. these results suggest that the miR156-SPL3-FT circuitry directly or indirectly regulates SEP3 expression for the regulation of ambient temperature-responsive flowering in Arabidopsis.

Original languageEnglish
Pages (from-to)1151-1154
Number of pages4
JournalPlant Signaling and Behavior
Volume7
Issue number9
DOIs
Publication statusPublished - 2012 Sep 1

Fingerprint

binding proteins
ambient temperature
promoter regions
flowering
genes
lesions (plant)
temperature
Arabidopsis
shoots
leaves

Keywords

  • Ambient temperature
  • Flowering time
  • miR156-SPL3-FT circuitry
  • SEP3

ASJC Scopus subject areas

  • Plant Science

Cite this

Role of SEPALLATA3 (SEP3) as a downstream gene of miR156-SPL3-FT circuitry in ambient temperature-responsive flowering. / Lee, Jeong Hwan; Kim, Jae Joon; Ahn, Ji Hoon.

In: Plant Signaling and Behavior, Vol. 7, No. 9, 01.09.2012, p. 1151-1154.

Research output: Contribution to journalArticle

@article{45c042617c04452c9756159b6b2d933d,
title = "Role of SEPALLATA3 (SEP3) as a downstream gene of miR156-SPL3-FT circuitry in ambient temperature-responsive flowering",
abstract = "SEPALLATA3 (SEP3) is important in determining flowering time as well as floral organ identity. although much is known about the regulation of floral organ identity by SEP3, its role as a downstream gene of FLOWERING LOCUS T (FT) for the regulation of ambient temperature-responsive flowering is poorly understood. here, we show that SEP3 as a downstream gene of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE3 (SPL3) and FT modulates the flowering time in response to different ambient temperatures. SEP3 overexpression showed temperature-insensitive flowering at 23°C and 16°C. this suggests that altered SEP3 activity affects ambient temperature-responsive flowering. however, a lesion in SEP3 did not obviously affect ambient temperature-responsive flowering. SEP3 expression was affected by altered SPL3 and FT activities in the leaf and shoot apical regions at different temperatures. these results suggest that the miR156-SPL3-FT circuitry directly or indirectly regulates SEP3 expression for the regulation of ambient temperature-responsive flowering in Arabidopsis.",
keywords = "Ambient temperature, Flowering time, miR156-SPL3-FT circuitry, SEP3",
author = "Lee, {Jeong Hwan} and Kim, {Jae Joon} and Ahn, {Ji Hoon}",
year = "2012",
month = "9",
day = "1",
doi = "10.4161/psb.21366",
language = "English",
volume = "7",
pages = "1151--1154",
journal = "Plant Signaling and Behavior",
issn = "1559-2316",
publisher = "Landes Bioscience",
number = "9",

}

TY - JOUR

T1 - Role of SEPALLATA3 (SEP3) as a downstream gene of miR156-SPL3-FT circuitry in ambient temperature-responsive flowering

AU - Lee, Jeong Hwan

AU - Kim, Jae Joon

AU - Ahn, Ji Hoon

PY - 2012/9/1

Y1 - 2012/9/1

N2 - SEPALLATA3 (SEP3) is important in determining flowering time as well as floral organ identity. although much is known about the regulation of floral organ identity by SEP3, its role as a downstream gene of FLOWERING LOCUS T (FT) for the regulation of ambient temperature-responsive flowering is poorly understood. here, we show that SEP3 as a downstream gene of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE3 (SPL3) and FT modulates the flowering time in response to different ambient temperatures. SEP3 overexpression showed temperature-insensitive flowering at 23°C and 16°C. this suggests that altered SEP3 activity affects ambient temperature-responsive flowering. however, a lesion in SEP3 did not obviously affect ambient temperature-responsive flowering. SEP3 expression was affected by altered SPL3 and FT activities in the leaf and shoot apical regions at different temperatures. these results suggest that the miR156-SPL3-FT circuitry directly or indirectly regulates SEP3 expression for the regulation of ambient temperature-responsive flowering in Arabidopsis.

AB - SEPALLATA3 (SEP3) is important in determining flowering time as well as floral organ identity. although much is known about the regulation of floral organ identity by SEP3, its role as a downstream gene of FLOWERING LOCUS T (FT) for the regulation of ambient temperature-responsive flowering is poorly understood. here, we show that SEP3 as a downstream gene of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE3 (SPL3) and FT modulates the flowering time in response to different ambient temperatures. SEP3 overexpression showed temperature-insensitive flowering at 23°C and 16°C. this suggests that altered SEP3 activity affects ambient temperature-responsive flowering. however, a lesion in SEP3 did not obviously affect ambient temperature-responsive flowering. SEP3 expression was affected by altered SPL3 and FT activities in the leaf and shoot apical regions at different temperatures. these results suggest that the miR156-SPL3-FT circuitry directly or indirectly regulates SEP3 expression for the regulation of ambient temperature-responsive flowering in Arabidopsis.

KW - Ambient temperature

KW - Flowering time

KW - miR156-SPL3-FT circuitry

KW - SEP3

UR - http://www.scopus.com/inward/record.url?scp=84866449884&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866449884&partnerID=8YFLogxK

U2 - 10.4161/psb.21366

DO - 10.4161/psb.21366

M3 - Article

C2 - 22899051

AN - SCOPUS:84866449884

VL - 7

SP - 1151

EP - 1154

JO - Plant Signaling and Behavior

JF - Plant Signaling and Behavior

SN - 1559-2316

IS - 9

ER -