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Title: Metabolic functions of Pseudomonas fluorescens strains from Populus deltoides depend on rhizosphere or endosphere isolation compartment

Journal Article · · Frontiers in Microbiology

The bacterial microbiota of plants is diverse, with ~1000s of operational taxonomic units (OTUs) associated with any individual plant. In this work we investigate how 19 sequenced Pseudomonas fluorescens strains representing a single OTU isolated from Populus deltoides rhizosphere and endosphere differ using phenotypic analysis, comparative genomics, and metabolic models. While no traits were exclusive to either endosphere or rhizosphere P. fluorescens isolates, multiple pathways relevant for bacterial-plant interactions are enriched in endosphere isolate genomes and growth phenotypes such as phosphate solubilization, protease activity, denitrification and root growth promotion are biased towards endosphere isolates. Endosphere isolates have more metabolic pathways for plant signaling compounds and an increased metabolic range that includes utilization of energy rich nucleotides and sugars, consistent with endosphere colonization. Rhizosphere P. fluorescens have fewer pathways important for bacterial-plant interactions but show metabolic bias towards chemical substrates often found in root exudates. This work reveals the diverse functions that may contribute to colonization of the endosphere by bacteria that are enriched in event he most closely related isolates.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1234335
Journal Information:
Frontiers in Microbiology, Vol. 6; ISSN 1664-302X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

References (88)

Bacterial volatiles promote growth in Arabidopsis journal April 2003
Extreme genome reduction in symbiotic bacteria journal November 2011
Genomics of Secondary Metabolism in Populus : Interactions with Biotic and Abiotic Environments journal October 2009
Is l-arabinose important for the endophytic lifestyle of Pseudomonas spp.? journal September 2012
Iron acquisition and its control in pseudomonas aeruginosa many roads lead to rome journal January 2003
Root exudation of sugars, amino acids, and organic acids by maize as affected by nitrogen, phosphorus, potassium, and iron deficiency journal December 2010
Defining the core Arabidopsis thaliana root microbiome journal August 2012
Aerobic degradation of aromatic compounds journal June 2013
Plant protection and growth stimulation by microorganisms: biotechnological applications of Bacilli in agriculture journal April 2011
Modeling Phosphorus Uptake by a Growing and Exuding Root System journal January 2012
The Aerobic Pseudomonads a Taxonomic Study journal May 1966
Plant growth promoting activities of phosphate-solubilizing Enterobacter asburiae as influenced by fungicides journal January 2010
Exudation of organic anions by roots of cabbage, carrot, and potato as influenced by environmental factors and plant age journal October 2004
What lies beneath: belowground defense strategies in plants journal February 2015
Pseudomonas fluorescens Induces Strain-Dependent and Strain-Independent Host Plant Responses in Defense Networks, Primary Metabolism, Photosynthesis, and Fitness journal June 2012
Soil properties are key determinants for the development of exudate gradients in a rhizosphere simulation model journal February 2010
Metabolic Activity and Phosphate-Dissolving Capability of Bacterial Isolates from Wheat Roots, Rhizosphere, and Non-Rhizosphere soil journal February 1959
Bacteria and fungi controlling plant growth by manipulating auxin: Balance between development and defense journal January 2015
Short-term physiological and developmental responses to nitrogen availability in hybrid poplar journal April 2005
Genome-scale metabolic reconstructions of multiple Escherichia coli strains highlight strain-specific adaptations to nutritional environments journal November 2013
Plant hormone cross-talk: the pivot of root growth journal January 2015
The Bacterial Oxidation of Tryptophan: A Study in Comparative Biochemistry journal September 1951
Plant growth-promoting bacteria in the rhizo- and endosphere of plants: Their role, colonization, mechanisms involved and prospects for utilization journal May 2010
PhyloChip hybridization uncovered an enormous bacterial diversity in the rhizosphere of different potato cultivars: many common and few cultivar-dependent taxa: PhyloChip analysis of potato rhizosphere bacteria journal January 2011
Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply journal September 2014
Genomic and genetic analyses of diversity and plant interactions of Pseudomonas fluorescens journal January 2009
Phosphate solubilization by Rhizobium strains journal March 2009
Selective progressive response of soil microbial community to wild oat roots journal November 2008
Analysis of the plant growth-promoting properties encoded by the genome of the rhizobacterium Pseudomonas putida  BIRD-1 : PGPR properties journal December 2012
Organic acid production in vitro and plant growth promotion in maize under controlled environment by phosphate-solubilizing fluorescent Pseudomonas journal January 2009
Linking Plant Nutritional Status to Plant-Microbe Interactions journal July 2013
Genome Survey and Characterization of Endophytic Bacteria Exhibiting a Beneficial Effect on Growth and Development of Poplar Trees journal December 2008
Functional analyses of genes involved in the metabolism of ferulic acid in Pseudomonas putida KT2440 journal March 2003
Genomic analysis of the aromatic catabolic pathways from Pseudomonas putida KT2440 journal December 2002
Modelling root–soil interactions using three–dimensional models of root growth, architecture and function journal June 2013
Microbial metabolism of pyridine, quinoline, acridine, and their derivatives under aerobic and anaerobic conditions. journal January 1996
The role of root Exudates in Rhizosphere Interactions with Plants and Other Organisms journal June 2006
Discovery of a bacterial gene cluster for catabolism of the plant hormone indole 3-acetic acid: Genes in Pseudomonas putida 1290 for the degradation of IAA journal August 2008
Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions journal July 2012
Use of chrome azurol S reagents to evaluate siderophore production by rhizosphere bacteria journal September 1991
Interactions between proteolytic and non-proteolytic Pseudomonas fluorescens affect protein degradation in a model community journal April 2000
Bacterial degradation of pyridine, indole, quinoline, and their derivatives under different redox conditions journal March 1998
The Effect of Phylogenetically Different Bacteria on the Fitness of Pseudomonas fluorescens in Sand Microcosms journal March 2015
Modulation of plant ethylene levels by the bacterial enzyme ACC deaminase journal October 2005
Physiology and Molecular Biology of Phenylpropanoid Metabolism journal June 1989
Regulation of ferulic catabolic genes in Pseudomonas fluorescens BF13: involvement of a MarR family regulator journal June 2008
Phenol biosynthesis in higher plants. Gallic acid journal July 1969
The role of auxin in shaping shoot architecture journal May 2013
Molecular characterization of genes of Pseudomonas sp. strain HR199 involved in bioconversion of vanillin to protocatechuate. journal April 1997
p-Cumate catabolic pathway in Pseudomonas putida Fl: cloning and characterization of DNA carrying the cmt operon. journal March 1996
Recent advances and emerging trends in plant hormone signalling journal June 2009
Phosphate solubilization by organic anion excretion from rice growing in aerobic soil: rates of excretion and decomposition, effects on rhizosphere pH and effects on phosphate solubility and uptake journal May 1999
p-Cymene pathway in Pseudomonas putida: ring cleavage of 2,3-dihydroxy-p-cumate and subsequent reactions. journal January 1977
Evaluation and validation of de novo and hybrid assembly techniques to derive high-quality genome sequences journal June 2014
MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model Space journal February 2012
Structure and Evolution of Streptomyces Interaction Networks in Soil and In Silico journal October 2011
Markers and signals associated with nitrogen assimilation in higher plants journal January 2003
Cloning, Sequence, and Expression of Kynureninase fromPseudomonas fluorescens journal August 1997
Phosphate solubilization of Paenibacillus polymyxa and Paenibacillus macerans from mycorrhizal and non-mycorrhizal cucumber plants journal June 2012
Root traits and microbial community interactions in relation to phosphorus availability and acquisition, with particular reference to Brassica journal January 2014
Structure and Functions of the Bacterial Microbiota of Plants journal April 2013
Solubilization of zinc phosphate by a strain of Pseudomonas fluorescens isolated from a forest soil journal November 1998
Speak, friend, and enter: signalling systems that promote beneficial symbiotic associations in plants journal March 2013
Relative involvement of nitrate and nitrite reduction in the competitiveness of Pseudomonas fluorescens in the rhizosphere of maize under non-limiting nitrate conditions journal February 2002
Degradation of 2,3-Dihydroxybenzoate by a Novel meta-Cleavage Pathway journal May 2012
Inside the root microbiome: Bacterial root endophytes and plant growth promotion journal September 2013
Ralstonia solanacearum Uses Inorganic Nitrogen Metabolism for Virulence, ATP Production, and Detoxification in the Oxygen-Limited Host Xylem Environment journal March 2015
Indole-3-acetic acid in microbial and microorganism-plant signaling journal July 2007
Gluconic acid production and phosphate solubilization by the plant growth-promoting bacterium Azospirillum spp. journal October 2004
Genotypic variation in aluminum resistance, cellular aluminum fractions, callose and pectin formation and organic acid accumulation in roots of Populus hybrids journal September 2011
Effects of Bacterial ACC Deaminase on Brassica napus Gene Expression journal May 2012
A More Sensitive Plate Assay for Detection of Protease Production by Pseudomonas aeruginosa journal April 1979
Pyrosequencing reveals a contrasted bacterial diversity between oak rhizosphere and surrounding soil journal April 2010
The β-Ketoadipate Pathway And The Biology Of Self-Identity journal October 1996
Plant-driven selection of microbes journal November 2008
Biological nitrogen fixation and phosphate solubilization by bacteria isolated from tropical soils journal March 2012
Transcriptional Responses to Sucrose Mimic the Plant-Associated Life Style of the Plant Growth Promoting Endophyte Enterobacter sp. 638 journal January 2015
A Multifactor Analysis of Fungal and Bacterial Community Structure in the Root Microbiome of Mature Populus deltoides Trees journal October 2013
Traits of fluorescent Pseudomonas spp. involved in suppression of plant root pathogens journal December 1992
Microbial metabolism of pyridine, quinoline, acridine, and their derivatives under aerobic and anaerobic conditions journal September 1996
Brassica Seed Meal Soil Amendments Transform the Rhizosphere Microbiome and Improve Apple Production Through Resistance to Pathogen Reinfestation journal April 2015
Aerobic tryptophan degradation pathway in bacteria: novel kynurenine formamidase journal October 2003
Unravelling the gallic acid degradation pathway in bacteria: the gal cluster from Pseudomonas putida: Aerobic gallic acid degradation journal November 2010
Traits of fluorescent Pseudomonas spp. involved in suppression of plant root pathogens. journal January 1992
Biochemical and Genetic Analyses of Ferulic Acid Catabolism in Pseudomonas sp. Strain HR199 journal November 1999
Biotechnology in Flavor Production book February 2008
Two Distinct Pathways Supply Anthranilate as a Precursor of the Pseudomonas Quinolone Signal journal March 2007
A critical examination of the specificity of the salkowski reagent for indolic compounds produced by phytopathogenic bacteria. journal January 1995

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