Faculty Opinions recommendation of Arabidopsis SPA proteins regulate photoperiodic flowering and interact with the floral inducer CONSTANS to regulate its stability.

2016 ◽  
Author(s):  
Xing Wang Deng
Keyword(s):  
Photoperiodic Flowering ◽  
Spa Proteins

scholarly journals The role of COP1 in repression of photoperiodic flowering

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 178 ◽  
Author(s):  
Dongqing Xu ◽  
Danmeng Zhu ◽  
Xing Wang Deng
Keyword(s):  
Circadian Clock ◽  
Ubiquitin Ligase ◽  
Seasonal Changes ◽  
Molecular Mechanisms ◽  
E3 Ubiquitin Ligase ◽  
Ring Finger ◽  
Photoperiodic Flowering ◽  
Spa Proteins ◽  
Light Input

Plants use the circadian clock as a timekeeping mechanism to regulate photoperiodic flowering in response to the seasonal changes. CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1), initially identified as a central repressor of seedling photomorphogenesis, was recently shown to be involved in the regulation of light input to the circadian clock, modulating the circadian rhythm and flowering. COP1 encodes a RING-finger E3 ubiquitin ligase and works in concert with SUPPRESSOR of phyA-105 (SPA) proteins to repress photoperiodic flowering by regulating proteasome-mediated degradation of CONSTANS (CO), a central regulator of photoperiodic flowering. In addition, COP1 and EARLY FLOWERING 3 (ELF3) indirectly modulate CO expression via the degradation of GIGANTEA (GI). Here, we summarize the current understanding of the molecular mechanisms underlying COP1’s role in controlling of photoperiodic flowering.

scholarly journals FLOWERING HTH1 is involved in CONSTANS-mediated flowering regulation in Arabidopsis

2019 ◽  
Vol 62 (1) ◽  
Author(s):  
Soon Ae Sim ◽  
Su Gyeong Woo ◽  
Dae Yeon Hwang ◽  
Jin-Hong Kim ◽  
Seung Sik Lee ◽  
...  
Keyword(s):  
Subcellular Location ◽  
Day Length ◽  
Interacting Protein ◽  
Photoperiodic Flowering ◽  
Family Protein ◽  
Flowering Regulation ◽  
Delayed Flowering ◽  
The Right ◽  
Two Hybrid ◽  
Repression Domain

Abstract Flowering at the right time is essential for maximum reproductive fitness. In Arabidopsis thaliana, the CONSTANS (CO) protein facilitates the transition from the vegetative phase to the reproductive phase under long-day conditions. The formation of heterodimeric complexes between CO and DNA binding domain-containing transcription factors is important for the induction of day length-dependent flowering. Here, we report a myb-like helix turn helix (HTH) transcriptional regulator family protein as a new modulator of floral transition, which we have named FLOWERING HTH1 (FHTH1). We isolated FHTH1 as a CO-interacting protein by a yeast two-hybrid screen using an Arabidopsis transcription factor library. Our analysis showed that FHTH1 presented in the nucleus and the FHTH1-CO complex was formed in the same subcellular location. We also observed the expression of a FHTH1:GUS construct in the leaf vasculature, where CO exists. Transgenic plants overexpressing FHTH1 fused with the plant-specific repression domain SRDX showed a delayed flowering phenotype in long days, resembling the phenotype of the co mutant. Our results suggest that FHTH1 may contribute to CO-mediated photoperiodic flowering regulation.

EF8 is involved in photoperiodic flowering pathway and chlorophyll biogenesis in rice

2014 ◽  
Vol 33 (12) ◽  
pp. 2003-2014 ◽  
Author(s):  
Zhiming Feng ◽  
Long Zhang ◽  
Chunyan Yang ◽  
Tao Wu ◽  
Jia Lv ◽  
...  
Keyword(s):  
Photoperiodic Flowering ◽  
Flowering Pathway ◽  
Chlorophyll Biogenesis

scholarly journals FLOWERING BHLH transcriptional activators control expression of the photoperiodic flowering regulator CONSTANS in Arabidopsis

2012 ◽  
Vol 109 (9) ◽  
pp. 3582-3587 ◽  
Author(s):  
S. Ito ◽  
Y. H. Song ◽  
A. R. Josephson-Day ◽  
R. J. Miller ◽  
G. Breton ◽  
...  
Keyword(s):  
Transcriptional Activators ◽  
Photoperiodic Flowering ◽  
Flowering Regulator

scholarly journals Natural variation and CRISPR/Cas9‐mediated mutation in GmPRR37 affect photoperiodic flowering and contribute to regional adaptation of soybean

2020 ◽  
Vol 18 (9) ◽  
pp. 1869-1881 ◽  
Author(s):  
Liwei Wang ◽  
Shi Sun ◽  
Tingting Wu ◽  
Luping Liu ◽  
Xuegang Sun ◽  
...  
Keyword(s):  
Natural Variation ◽  
Photoperiodic Flowering ◽  
Regional Adaptation
Sign in / Sign up

Export Citation Format

Share Document