Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26098376
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Plant+Signal+Behav
2015 ; 10
(6
): e1022012
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
From retrograde signaling to flowering time
#MMPMID26098376
Wang C
; Dehesh K
Plant Signal Behav
2015[]; 10
(6
): e1022012
PMID26098376
show ga
Plant's transition from vegetative to reproductive phase is balanced by intricate
cascade of genes regulated by both endogenous and environmental inputs. Stress
causes suppression of vegetative growth and acceleration of flowering as an
emergency response for preservation of the species. Recently, we determined that
expression levels of a transcription factor with 2 B-Box motifs, BBX19, is
notably reduced in response to accumulation of high levels of Methylerythritol
cyclodiphosphate (MEcPP), a plastidial produced isoprenoids intermediate that
also functions as a stress-specific retrograde signaling metabolite. We now have
identified BBX19 as a repressor of Flower locus T (FT) expression and the
corresponding downstream genes, SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1
(SOC1), Leafy (LFY) and Fruitful (FUL), through competition with CONSTANS (CO).
Collectively our finding identifies BBX19 as a link between the stress-specific
retrograde signal MEcPP and regulation of flowering time by depleting the active
CO pool required for transcription of FT.
free
free
free
