PMID- 28418582
OWN - NLM
STAT- MEDLINE
DCOM- 20180501
LR  - 20200930
IS  - 1469-8137 (Electronic)
IS  - 0028-646X (Linking)
VI  - 215
IP  - 1
DP  - 2017 Jul
TI  - COP1 conveys warm temperature information to hypocotyl thermomorphogenesis.
PG  - 269-280
LID - 10.1111/nph.14581 [doi]
AB  - Plants adjust their architecture to optimize growth and reproductive success 
      under changing climates. Hypocotyl elongation is a pivotal morphogenic trait that 
      is profoundly influenced by light and temperature conditions. While hypocotyl 
      photomorphogenesis has been well characterized at the molecular level, molecular 
      mechanisms underlying hypocotyl thermomorphogenesis remains elusive. Here, we 
      demonstrate that the E3 ubiquitin ligase CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) 
      conveys warm temperature signals to hypocotyl thermomorphogenesis. To investigate 
      the roles of COP1 and its target ELONGATED HYPOCOTYL 5 (HY5) during hypocotyl 
      thermomorphogenesis, we employed Arabidopsis mutants that are defective in their 
      genes. Transgenic plants overexpressing the genes were also produced. We examined 
      hypocotyl growth and thermoresponsive turnover rate of HY5 protein at warm 
      temperatures under both light and dark conditions. Elevated temperatures trigger 
      the nuclear import of COP1, thereby alleviating the suppression of hypocotyl 
      growth by HY5. While the thermal induction of hypocotyl growth is 
      circadian-gated, the degradation of HY5 by COP1 is uncoupled from light responses 
      and timing information. We propose that thermal activation of COP1 enables 
      coincidence between warm temperature signaling and circadian rhythms, which 
      allows plants to gate hypocotyl thermomorphogenesis at the most profitable time 
      at warm temperatures.
CI  - (c) 2017 The Authors. New Phytologist (c) 2017 New Phytologist Trust.
FAU - Park, Young-Joon
AU  - Park YJ
AD  - Department of Chemistry, Seoul National University, Seoul, 151-742, Korea.
FAU - Lee, Hyo-Jun
AU  - Lee HJ
AD  - Department of Chemistry, Seoul National University, Seoul, 151-742, Korea.
FAU - Ha, Jun-Ho
AU  - Ha JH
AD  - Department of Chemistry, Seoul National University, Seoul, 151-742, Korea.
FAU - Kim, Jae Young
AU  - Kim JY
AD  - Department of Chemistry, Seoul National University, Seoul, 151-742, Korea.
FAU - Park, Chung-Mo
AU  - Park CM
AD  - Department of Chemistry, Seoul National University, Seoul, 151-742, Korea.
AD  - Plant Genomics and Breeding Institute, Seoul National University, Seoul, 151-742, 
      Korea.
LA  - eng
PT  - Journal Article
DEP - 20170418
PL  - England
TA  - New Phytol
JT  - The New phytologist
JID - 9882884
RN  - 0 (Arabidopsis Proteins)
RN  - EC 2.3.2.27 (AT2G32950 protein, Arabidopsis)
RN  - EC 2.3.2.27 (Ubiquitin-Protein Ligases)
SB  - IM
MH  - Arabidopsis/genetics/*metabolism
MH  - Arabidopsis Proteins/genetics/metabolism/*physiology
MH  - Gene Expression Regulation, Plant
MH  - Hypocotyl/growth & development/metabolism/*physiology
MH  - Light
MH  - Seedlings/growth & development
MH  - Signal Transduction
MH  - Temperature
MH  - Ubiquitin-Protein Ligases
OTO - NOTNLM
OT  - Arabidopsis
OT  - CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1)
OT  - ELONGATED HYPOCOTYL 5 (HY5)
OT  - circadian clock
OT  - hypocotyl elongation
OT  - thermomorphogenesis
EDAT- 2017/04/19 06:00
MHDA- 2018/05/02 06:00
CRDT- 2017/04/19 06:00
PHST- 2016/12/09 00:00 [received]
PHST- 2017/03/21 00:00 [accepted]
PHST- 2017/04/19 06:00 [pubmed]
PHST- 2018/05/02 06:00 [medline]
PHST- 2017/04/19 06:00 [entrez]
AID - 10.1111/nph.14581 [doi]
PST - ppublish
SO  - New Phytol. 2017 Jul;215(1):269-280. doi: 10.1111/nph.14581. Epub 2017 Apr 18.