PMID- 27255835
OWN - NLM
STAT- MEDLINE
DCOM- 20180221
LR  - 20191210
IS  - 2055-0278 (Electronic)
IS  - 2055-0278 (Linking)
VI  - 2
IP  - 6
DP  - 2016 May 9
TI  - Convergence of light and chloroplast signals for de-etiolation through ABI4-HY5 
      and COP1.
PG  - 16066
LID - 10.1038/nplants.2016.66 [doi]
AB  - Seedling de-etiolation prepares plants to switch from heterotrophic to 
      photoautotrophic growth, a transition essential for plant survival. This delicate 
      de-etiolation process is precisely controlled by environmental and endogenous 
      signals. Although intracellular plastid-derived retrograde signalling is 
      essential for the de-etiolation process, the molecular nature of these retrograde 
      signals remains elusive(1-3). Here we show that chloroplast and light signals 
      antagonistically fine-tune a suite of developmental and physiological responses 
      associated with de-etiolation through a transcriptional module of ABA INSENSITIVE 
      4 (ABI4) and ELONGATED HYPOCOTYL 5 (HY5). Moreover, ABI4 and HY5 antagonistically 
      regulate the expression of CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1) and the 
      subsequent greening process. In turn, ABI4 and HY5 are targeted for degradation 
      by COP1 in the light and dark, respectively, to ensure a proper interplay of ABI4 
      and HY5 actions during seedling de-etiolation. Our study provides a new molecular 
      mechanism for understanding how chloroplast signals converge with light signals 
      to optimize early plant development.
FAU - Xu, Xiumei
AU  - Xu X
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Chi, Wei
AU  - Chi W
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Sun, Xuwu
AU  - Sun X
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Feng, Peiqiang
AU  - Feng P
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Guo, Hailong
AU  - Guo H
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Li, Jing
AU  - Li J
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Lin, Rongcheng
AU  - Lin R
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Lu, Congming
AU  - Lu C
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
FAU - Wang, Haiyang
AU  - Wang H
AD  - Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, 
      Beijing, 100081, China.
FAU - Leister, Dario
AU  - Leister D
AD  - Plant Molecular Biology (Botany), Department Biology I, 
      Ludwig-Maximilians-University, 82152 Planegg, Germany.
FAU - Zhang, Lixin
AU  - Zhang L
AD  - Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of 
      Botany, Chinese Academy of Sciences, Beijing 100093, China.
LA  - eng
PT  - Letter
DEP - 20160509
PL  - England
TA  - Nat Plants
JT  - Nature plants
JID - 101651677
RN  - 0 (ABI4 protein, Arabidopsis)
RN  - 0 (Arabidopsis Proteins)
RN  - 0 (Basic-Leucine Zipper Transcription Factors)
RN  - 0 (HY5 protein, Arabidopsis)
RN  - 0 (Nuclear Proteins)
RN  - 0 (Transcription Factors)
RN  - EC 2.3.2.27 (AT2G32950 protein, Arabidopsis)
RN  - EC 2.3.2.27 (Ubiquitin-Protein Ligases)
SB  - IM
MH  - Arabidopsis/genetics/growth & development/*physiology
MH  - Arabidopsis Proteins/*genetics/metabolism
MH  - Basic-Leucine Zipper Transcription Factors/*genetics/metabolism
MH  - Chloroplasts/physiology
MH  - *Etiolation
MH  - *Gene Expression Regulation, Plant
MH  - Light
MH  - Nuclear Proteins/*genetics/metabolism
MH  - Seedlings/genetics/growth & development/physiology
MH  - *Signal Transduction
MH  - Transcription Factors/*genetics/metabolism
MH  - Ubiquitin-Protein Ligases
EDAT- 2016/06/04 06:00
MHDA- 2018/02/22 06:00
CRDT- 2016/06/04 06:00
PHST- 2015/07/07 00:00 [received]
PHST- 2016/04/07 00:00 [accepted]
PHST- 2016/06/04 06:00 [entrez]
PHST- 2016/06/04 06:00 [pubmed]
PHST- 2018/02/22 06:00 [medline]
AID - nplants201666 [pii]
AID - 10.1038/nplants.2016.66 [doi]
PST - epublish
SO  - Nat Plants. 2016 May 9;2(6):16066. doi: 10.1038/nplants.2016.66.