PMID- 16766693
OWN - NLM
STAT- MEDLINE
DCOM- 20070518
LR  - 20240315
IS  - 1040-4651 (Print)
IS  - 1532-298X (Electronic)
IS  - 1040-4651 (Linking)
VI  - 18
IP  - 7
DP  - 2006 Jul
TI  - The Arabidopsis root hair cell wall formation mutant lrx1 is suppressed by 
      mutations in the RHM1 gene encoding a UDP-L-rhamnose synthase.
PG  - 1630-41
AB  - Cell and cell wall growth are mutually dependent processes that must be tightly 
      coordinated and controlled. LRR-extensin1 (LRX1) of Arabidopsis thaliana is a 
      potential regulator of cell wall development, consisting of an N-terminal 
      leucine-rich repeat domain and a C-terminal extensin-like domain typical for 
      structural cell wall proteins. LRX1 is expressed in root hairs, and lrx1 mutant 
      plants develop distorted root hairs that often swell, branch, or collapse. The 
      aberrant cell wall structures found in lrx1 mutants point toward a function of 
      LRX1 during the establishment of the extracellular matrix. To identify genes that 
      are involved in an LRX1-dependent developmental pathway, a suppressor screen was 
      performed on the lrx1 mutant, and two independent rol1 (for repressor of lrx1) 
      alleles were isolated. ROL1 is allelic to Rhamnose Biosynthesis1, which codes for 
      a protein involved in the biosynthesis of rhamnose, a major monosaccharide 
      component of pectin. The rol1 mutations modify the pectic polysaccharide 
      rhamnogalacturonan I and, for one allele, rhamnogalacturonan II. Furthermore, the 
      rol1 mutations cause a change in the expression of a number of cell wall-related 
      genes. Thus, the lrx1 mutant phenotype is likely to be suppressed by changes in 
      pectic polysaccharides or other cell wall components.
FAU - Diet, Anouck
AU  - Diet A
AD  - Institute of Plant Biology, University of Zurich, 8008 Zurich, Switzerland.
FAU - Link, Bruce
AU  - Link B
FAU - Seifert, Georg J
AU  - Seifert GJ
FAU - Schellenberg, Barbara
AU  - Schellenberg B
FAU - Wagner, Ulrich
AU  - Wagner U
FAU - Pauly, Markus
AU  - Pauly M
FAU - Reiter, Wolf-Dieter
AU  - Reiter WD
FAU - Ringli, Christoph
AU  - Ringli C
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20060609
PL  - England
TA  - Plant Cell
JT  - The Plant cell
JID - 9208688
RN  - 0 (Arabidopsis Proteins)
RN  - 0 (LRX1 protein, Arabidopsis)
RN  - 0 (Monosaccharides)
RN  - 0 (Uridine Diphosphate Sugars)
RN  - EC 2.4.1.- (Glucosyltransferases)
RN  - EC 2.4.1.- (RHM1 protein, Arabidopsis)
RN  - QN34XC755A (Rhamnose)
SB  - IM
MH  - Alleles
MH  - Arabidopsis/*cytology/*genetics/metabolism
MH  - Arabidopsis Proteins/genetics/*metabolism
MH  - Cell Wall/chemistry/*metabolism
MH  - Extracellular Matrix/chemistry
MH  - Gene Expression Profiling
MH  - Glucosyltransferases/genetics/*metabolism
MH  - Molecular Sequence Data
MH  - Monosaccharides/chemistry/metabolism
MH  - Mutation
MH  - Phenotype
MH  - Plant Roots/*cytology
MH  - Rhamnose/*biosynthesis
MH  - Uridine Diphosphate Sugars/*metabolism
PMC - PMC1488927
EDAT- 2006/06/13 09:00
MHDA- 2007/05/19 09:00
PMCR- 2007/07/01
CRDT- 2006/06/13 09:00
PHST- 2006/06/13 09:00 [pubmed]
PHST- 2007/05/19 09:00 [medline]
PHST- 2006/06/13 09:00 [entrez]
PHST- 2007/07/01 00:00 [pmc-release]
AID - tpc.105.038653 [pii]
AID - 038653 [pii]
AID - 10.1105/tpc.105.038653 [doi]
PST - ppublish
SO  - Plant Cell. 2006 Jul;18(7):1630-41. doi: 10.1105/tpc.105.038653. Epub 2006 Jun 9.