Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25304202
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25304202
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Plant+Cell
2014 ; 26
(10
): 4039-52
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
FAMA is an essential component for the differentiation of two distinct cell
types, myrosin cells and guard cells, in Arabidopsis
#MMPMID25304202
Shirakawa M
; Ueda H
; Nagano AJ
; Shimada T
; Kohchi T
; Hara-Nishimura I
Plant Cell
2014[Oct]; 26
(10
): 4039-52
PMID25304202
show ga
Brassicales plants, including Arabidopsis thaliana, have an ingenious
two-compartment defense system, which sequesters myrosinase from the substrate
glucosinolate and produces a toxic compound when cells are damaged by herbivores.
Myrosinase is stored in vacuoles of idioblast myrosin cells. The molecular
mechanism that regulates myrosin cell development remains elusive. Here, we
identify the basic helix-loop-helix transcription factor FAMA as an essential
component for myrosin cell development along Arabidopsis leaf veins. FAMA is
known as a regulator of stomatal development. We detected FAMA expression in
myrosin cell precursors in leaf primordia in addition to stomatal lineage cells.
FAMA deficiency caused defects in myrosin cell development and in the
biosynthesis of myrosinases THIOGLUCOSIDE GLUCOHYDROLASE1 (TGG1) and TGG2.
Conversely, ectopic FAMA expression conferred myrosin cell characteristics to
hypocotyl and root cells, both of which normally lack myrosin cells. The FAMA
interactors ICE1/SCREAM and its closest paralog SCREAM2/ICE2 were essential for
myrosin cell development. DNA microarray analysis identified 32 candidate genes
involved in myrosin cell development under the control of FAMA. This study
provides a common regulatory pathway that determines two distinct cell types in
leaves: epidermal guard cells and inner-tissue myrosin cells.