skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A plant-responsive bacterial-signaling system senses an ethanolamine derivative

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

Significance A number of plant-associated bacteria possess transcription factors homologous to LuxR that respond to compounds found in plant tissue. These LuxR homologs are known to regulate virulence or symbiosis. Although the first of these proteins were described more than a decade ago, the factors they respond to remain unknown. Here we identify a compound that functions with PipR, a plant-responsive LuxR homolog from a tree root endopytic Pseudomonas isolate. The inducer is an ethanolamine derivative. Ethanolamine is a building block for plant membrane phospholipids and signaling molecules. This discovery connects at least one of the plant-responsive LuxR homolog systems to a growing understanding of ethanolamine chemistry and responses of bacterial cells to ethanolamine and ethanolamine derivatives.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00R227525; AC05-00OR22725
OSTI ID:
1468883
Alternate ID(s):
OSTI ID: 1474576
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 115 Journal Issue: 39; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

References (41)

Eukaryotic Phospholipid Biosynthesis journal June 1995
A proline iminopeptidase gene upregulated in planta by a LuxR homologue is essential for pathogenicity of Xanthomonas campestris pv. campestris journal July 2007
A LuxR homologue of Xanthomonas oryzae pv. oryzae is required for optimal rice virulence journal July 2007
XocR, a LuxR solo required for virulence in Xanthomonas oryzae pv. oryzicola journal April 2015
A LuxR Homolog in a Cottonwood Tree Endophyte That Activates Gene Expression in Response to a Plant Signal or Specific Peptides journal August 2016
The Kennedy pathway-De novo synthesis of phosphatidylethanolamine and phosphatidylcholine journal June 2010
Influence of experimental setup on amine degradation journal September 2014
Phosphatidylserine decarboxylase journal September 1997
A bioinformatic survey of distribution, conservation, and probable functions of LuxR solo regulators in bacteria journal February 2015
Structural identification of a bacterial quorum-sensing signal containing boron journal January 2002
XagR, a LuxR Homolog, Contributes to the Virulence of Xanthomonas axonopodis pv. glycines to Soybean journal August 2012
Plants Synthesize Ethanolamine by Direct Decarboxylation of Serine Using a Pyridoxal Phosphate Enzyme journal July 2001
Genome-Wide Identification of Plant-Upregulated Genes of Erwinia chrysanthemi 3937 Using a GFP-Based IVET Leaf Array journal September 2004
Ethanolamine Catabolism in Pseudomonas aeruginosa PAO1 Is Regulated by the Enhancer-Binding Protein EatR (PA4021) and the Alternative Sigma Factor RpoN journal June 2016
An Orphan LuxR Homolog of Sinorhizobium meliloti Affects Stress Adaptation and Competition for Nodulation journal December 2008
LuxR-family 'solos': bachelor sensors/regulators of signalling molecules journal April 2009
Isovaleryl-homoserine lactone, an unusual branched-chain quorum-sensing signal from the soybean symbiont Bradyrhizobium japonicum journal September 2011
Ethanolamine Utilization in Bacteria journal February 2018
Identification of Listeria monocytogenes Genes Contributing to Intracellular Replication by Expression Profiling and Mutant Screening journal December 2005
Sequestration of a two-component response regulator by a riboswitch-regulated noncoding RNA journal August 2014
A pH-Sensitive Function and Phenotype: Evidence that EutH Facilitates Diffusion of Uncharged Ethanolamine in Salmonella enterica journal October 2004
Regulation of Gene Expression by Cell-to-Cell Communication: Acyl-Homoserine Lactone Quorum Sensing journal December 2001
SignalP 4.0: discriminating signal peptides from transmembrane regions journal September 2011
XerR, a negative regulator of XccR in Xanthomonas campestris pv. campestris, relieves its repressor function in planta journal April 2011
Functional roles assigned to the periplasmic, linker, and receiver domains of the Agrobacterium tumefaciens VirA protein. journal November 1992
OryR Is a LuxR-Family Protein Involved in Interkingdom Signaling between Pathogenic Xanthomonas oryzae pv. oryzae and Rice journal November 2008
The Kiwifruit Emerging Pathogen Pseudomonas syringae pv. actinidiae Does Not Produce AHLs but Possesses Three LuxR Solos journal January 2014
Understanding 2-Ethanolamine Degradation in Postcombustion CO 2 Capture journal October 2012
Phenotype MicroArrays for High-Throughput Phenotypic Testing and Assay of Gene Function journal July 2001
Amine degradation in CO2 capture. I. A review journal September 2012
A broad-host-range Flp-FRT recombination system for site-specific excision of chromosomally-located DNA sequences: application for isolation of unmarked Pseudomonas aeruginosa mutants journal May 1998
A novel widespread interkingdom signaling circuit journal March 2013
Symbiotic properties of rhizobia containing a flavonoid-independent hybrid nodD product. journal July 1989
Evidence from Engineering that Decarboxylation of Free Serine is the Major Source of Ethanolamine Moieties in Plants journal November 2003
Induction of Rhizobium meliloti nodC expression by plant exudate requires nodD. journal October 1985
Aryl-homoserine lactone quorum sensing in stem-nodulating photosynthetic bradyrhizobia journal April 2011
LuxR- and LuxI-Type Quorum-Sensing Circuits Are Prevalent in Members of the Populus deltoides Microbiome journal July 2013
Ethanolamine Controls Expression of Genes Encoding Components Involved in Interkingdom Signaling and Virulence in Enterohemorrhagic Escherichia coli O157:H7 journal May 2012
Top 10 plant pathogenic bacteria in molecular plant pathology: Top 10 plant pathogenic bacteria journal June 2012
N -Acylethanolamines: lipid metabolites with functions in plant growth and development journal February 2014
Bacterial Subfamily of LuxR Regulators That Respond to Plant Compounds journal April 2011

Figures / Tables (5)