PMID- 34097751
OWN - NLM
STAT- MEDLINE
DCOM- 20220322
LR  - 20220322
IS  - 1751-1097 (Electronic)
IS  - 0031-8655 (Linking)
VI  - 97
IP  - 5
DP  - 2021 Sep
TI  - Molecular Mechanisms of UVR8-Mediated Photomorphogenesis Derived from Revaluation 
      of Action Spectra.
PG  - 903-910
LID - 10.1111/php.13459 [doi]
AB  - Considering previously reported action spectra and molecular evidence, I propose 
      a hypothetical model for UV RESISTANCE LOCUS8 (UVR8)-mediated photomorphogenesis. 
      Upon UV-B irradiation, a UVR8 dimer dissociates and accumulates in the nucleus 
      and photomorphogenesis begins following two pathways: one in which the UVR8 
      monomer binds to transcription factor(s) of gene(s) supporting hypocotyl growth 
      to stop gene expression resulting in hypocotyl growth inhibition and the other in 
      which the UVR8 monomer binds both with CONSTITUTIVELY 
      PHOTOMORPHOGENIC1-SUPPRESSOR OF PHYA (COP1-SPA) to release HY5 (referred to as 
      "stabilized") and WRKY DNA-BINDING PROTEIN 36 (WRKY36) on the ELONGATED HYPOCOTYL 
      5 (HY5) gene to release HY5 transcription, and both HY5 and another 
      UV-B-activated UV-B sensor (denoted the Hyp sensor in this article) through a 
      self-interacting factor (HIF) associates with the HY5 promoter to initiate HY5 
      transcription, leading to anthocyanin synthesis. These two pathways can be 
      distinguished by action spectra in the UV-B region, with a single peak at 280 nm 
      and two peaks (or a broad peak near 280-300 nm) for the former and the latter, 
      respectively. Expanding the concept to cyanobacteria and other algae, I discuss 
      the evolution of a UV-B sensor in green plants.
CI  - (c) 2021 American Society for Photobiology.
FAU - Takeda, Junko
AU  - Takeda J
AUID- ORCID: 0000-0002-1642-3716
AD  - Laboratory of Applied Microbiology and Biotechnology, Nara Women's University, 
      Nara, Japan.
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20210621
PL  - United States
TA  - Photochem Photobiol
JT  - Photochemistry and photobiology
JID - 0376425
RN  - 0 (AT1G69810 protein, Arabidopsis)
RN  - 0 (Arabidopsis Proteins)
RN  - 0 (Basic-Leucine Zipper Transcription Factors)
RN  - 0 (Chromosomal Proteins, Non-Histone)
RN  - 0 (DNA-Binding Proteins)
RN  - 0 (HY5 protein, Arabidopsis)
RN  - 0 (Transcription Factors)
RN  - 0 (Uvr8 protein, Arabidopsis)
RN  - EC 2.3.2.27 (AT2G32950 protein, Arabidopsis)
RN  - EC 2.3.2.27 (Ubiquitin-Protein Ligases)
SB  - IM
MH  - *Arabidopsis/genetics/radiation effects
MH  - *Arabidopsis Proteins/genetics/metabolism
MH  - Basic-Leucine Zipper Transcription Factors/genetics/metabolism
MH  - *Chromosomal Proteins, Non-Histone/genetics/metabolism
MH  - DNA-Binding Proteins
MH  - Gene Expression Regulation, Plant
MH  - Signal Transduction
MH  - Transcription Factors
MH  - Ubiquitin-Protein Ligases
MH  - *Ultraviolet Rays
EDAT- 2021/06/08 06:00
MHDA- 2022/03/23 06:00
CRDT- 2021/06/07 17:21
PHST- 2020/12/29 00:00 [received]
PHST- 2021/06/03 00:00 [accepted]
PHST- 2021/06/08 06:00 [pubmed]
PHST- 2022/03/23 06:00 [medline]
PHST- 2021/06/07 17:21 [entrez]
AID - 10.1111/php.13459 [doi]
PST - ppublish
SO  - Photochem Photobiol. 2021 Sep;97(5):903-910. doi: 10.1111/php.13459. Epub 2021 
      Jun 21.