1
|
LeTourneau MK, Marshall MJ, Grant M, Freeze PM, Strawn DG, Lai B, Dohnalkova AC, Harsh JB, Weller DM, Thomashow LS. Phenazine-1-Carboxylic Acid-Producing Bacteria Enhance the Reactivity of Iron Minerals in Dryland and Irrigated Wheat Rhizospheres. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:14273-14284. [PMID: 31751506 DOI: 10.1021/acs.est.9b03962] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phenazine-1-carboxylic acid (PCA) is a broad-spectrum antibiotic produced by rhizobacteria in the dryland wheat fields of the Columbia Plateau. PCA and other phenazines reductively dissolve Fe and Mn oxyhydroxides in bacterial culture systems, but the impact of PCA upon Fe and Mn cycling in the rhizosphere is unknown. Here, concentrations of dithionite-extractable and poorly crystalline Fe were approximately 10% and 30-40% higher, respectively, in dryland and irrigated rhizospheres inoculated with the PCA-producing (PCA+) strain Pseudomonas synxantha 2-79 than in rhizospheres inoculated with a PCA-deficient mutant. However, rhizosphere concentrations of Fe(II) and Mn did not differ significantly, indicating that PCA-mediated redox transformations of Fe and Mn were transient or were masked by competing processes. Total Fe and Mn uptake into wheat biomass also did not differ significantly, but the PCA+ strain significantly altered Fe translocation into shoots. X-ray absorption near edge spectroscopy revealed an abundance of Fe-bearing oxyhydroxides and phyllosilicates in all rhizospheres. These results indicate that the PCA+ strain enhanced the reactivity and mobility of Fe derived from soil minerals without producing parallel changes in plant Fe uptake. This is the first report that directly links significant alterations of Fe-bearing minerals in the rhizosphere to a single bacterial trait.
Collapse
Affiliation(s)
- Melissa K LeTourneau
- Department of Crop & Soil Sciences , Washington State University , Pullman , Washington 99164-6420 , United States
- United State Department of Agriculture - Agricultural Research Service , Wheat Health, Genetics and Quality Research Unit , Pullman , Washington 99164-6430 , United States
| | - Matthew J Marshall
- Earth & Biological Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| | - Michael Grant
- Department of Crop & Soil Sciences , Washington State University , Pullman , Washington 99164-6420 , United States
| | - Patrick M Freeze
- Department of Crop & Soil Sciences , Washington State University , Pullman , Washington 99164-6420 , United States
| | - Daniel G Strawn
- Department of Soil and Water Systems , University of Idaho , Moscow , Idaho 83844-2340 , United States
| | - Barry Lai
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Alice C Dohnalkova
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| | - James B Harsh
- Department of Crop & Soil Sciences , Washington State University , Pullman , Washington 99164-6420 , United States
| | - David M Weller
- United State Department of Agriculture - Agricultural Research Service , Wheat Health, Genetics and Quality Research Unit , Pullman , Washington 99164-6430 , United States
| | - Linda S Thomashow
- United State Department of Agriculture - Agricultural Research Service , Wheat Health, Genetics and Quality Research Unit , Pullman , Washington 99164-6430 , United States
| |
Collapse
|
2
|
Abstract
Burkholderia bacteria are multifaceted organisms that are ecologically and metabolically diverse. The Burkholderia genus has gained prominence because it includes human pathogens; however, many strains are nonpathogenic and have desirable characteristics such as beneficial plant associations and degradation of pollutants. The diversity of the Burkholderia genus is reflected within the large genomes that feature multiple replicons. Burkholderia genomes encode a plethora of natural products with potential therapeutic relevance and biotechnological applications. This review highlights Burkholderia as an emerging source of natural products. An overview of the taxonomy of the Burkholderia genus, which is currently being revised, is provided. We then present a curated compilation of natural products isolated from Burkholderia sensu lato and analyze their characteristics in terms of biosynthetic class, discovery method, and bioactivity. Finally, we describe and discuss genome characteristics and highlight the biosynthesis of a select number of natural products that are encoded in unusual biosynthetic gene clusters. The availability of >1000 Burkholderia genomes in public databases provides an opportunity to realize the genetic potential of this underexplored taxon for natural product discovery.
Collapse
Affiliation(s)
- Sylvia Kunakom
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alessandra S. Eustáquio
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| |
Collapse
|
4
|
LeTourneau MK, Marshall MJ, Cliff JB, Bonsall RF, Dohnalkova AC, Mavrodi DV, Devi SI, Mavrodi OV, Harsh JB, Weller DM, Thomashow LS. Phenazine‐1‐carboxylic acid and soil moisture influence biofilm development and turnover of rhizobacterial biomass on wheat root surfaces. Environ Microbiol 2018; 20:2178-2194. [DOI: 10.1111/1462-2920.14244] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 04/15/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Melissa K. LeTourneau
- Department of Crop & Soil SciencesWashington State UniversityPullmanWA 99164‐6420 USA
| | - Matthew J. Marshall
- Earth & Biological Sciences DirectoratePacific Northwest National LaboratoryRichlandWA 99352 USA
| | - John B. Cliff
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA 99352 USA
| | - Robert F. Bonsall
- Department of Plant PathologyWashington State UniversityPullmanWA 99164‐6420 USA
| | - Alice C. Dohnalkova
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA 99352 USA
| | - Dmitri V. Mavrodi
- Department of Biological SciencesUniversity of Southern MississippiHattiesburgMS 39406‐0001 USA
| | - S. Indira Devi
- Institute of Bioresources and Sustainable DevelopmentTakyelpat ManipurImphal 795001 India
| | - Olga V. Mavrodi
- Department of Biological SciencesUniversity of Southern MississippiHattiesburgMS 39406‐0001 USA
| | - James B. Harsh
- Department of Crop & Soil SciencesWashington State UniversityPullmanWA 99164‐6420 USA
| | - David M. Weller
- United States Department of Agriculture – Agricultural Research ServiceWheat Health, Genetics, and Quality Research UnitPullmanWA 99164‐6430 USA
| | - Linda S. Thomashow
- United States Department of Agriculture – Agricultural Research ServiceWheat Health, Genetics, and Quality Research UnitPullmanWA 99164‐6430 USA
| |
Collapse
|
5
|
Isolation of phenazine 1,6-di-carboxylic acid from Pseudomonas aeruginosa strain HRW.1-S3 and its role in biofilm-mediated crude oil degradation and cytotoxicity against bacterial and cancer cells. Appl Microbiol Biotechnol 2015; 99:8653-65. [PMID: 26051670 DOI: 10.1007/s00253-015-6707-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/08/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
Abstract
Pseudomonas sp. has long been known for production of a wide range of secondary metabolites during late exponential and stationary phases of growth. Phenazine derivatives constitute a large group of secondary metabolites produced by microorganisms including Pseudomonas sp. Phenazine 1,6-di-carboxylic acid (PDC) is one of such metabolites and has been debated for its origin from Pseudomonas sp. The present study describes purification and characterization of PDC isolated from culture of a natural isolate of Pseudomonas sp. HRW.1-S3 while grown in presence of crude oil as sole carbon source. The isolated PDC was tested for its effect on biofilm formation by another environmental isolate of Pseudomonas sp. DSW.1-S4 which lacks the ability to produce any phenazine compound. PDC showed profound effect on both planktonic as well as biofilm mode of growth of DSW.1-S4 at concentrations between 5 and 20 μM. Interestingly, PDC showed substantial cytotoxicity against three cancer cell lines and against both Gram-positive and Gram-negative bacteria. Thus, the present study not only opens an avenue to understand interspecific cooperation between Pseudomonas species which may lead its applicability in bioremediation, but also it signifies the scope of future investigation on PDC for its therapeutic applications.
Collapse
|
6
|
Chin-A-Woeng TFC, Bloemberg GV, Lugtenberg BJJ. Phenazines and their role in biocontrol by Pseudomonas bacteria. THE NEW PHYTOLOGIST 2003; 157:503-523. [PMID: 33873412 DOI: 10.1046/j.1469-8137.2003.00686.x] [Citation(s) in RCA: 159] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Various rhizosphere bacteria are potential (micro)biological pesticides which are able to protect plants against diseases and improve plant yield. Knowledge of the molecular mechanisms that govern these beneficial plant-microbe interactions enables optimization, enhancement and identification of potential synergistic effects in plant protection. The production of antifungal metabolites, induction of systemic resistance, and the ability to compete efficiently with other resident rhizobacteria are considered to be important prerequisites for the optimal performance of biocontrol agents. Intriguing aspects in the molecular mechanisms of these processes have been discovered recently. Phenazines and phloroglucinols are major determinants of biological control of soilborne plant pathogens by various strains of fluorescent Pseudomonas spp. This review focuses on the current state of knowledge on biocontrol by phenazine-producing Pseudomonas strains and the action, biosynthesis, and regulation mechanisms of the production of microbial phenazines.
Collapse
Affiliation(s)
| | - Guido V Bloemberg
- Institute of Molecular Plant Sciences, Leiden University, The Netherlands
| | - Ben J J Lugtenberg
- Institute of Molecular Plant Sciences, Leiden University, The Netherlands
| |
Collapse
|
8
|
Messenger AJ, Turner JM. Phenazine-1,6-dicarboxylate and its dimethyl ester as precursors of other phenazines in bacteria. FEMS Microbiol Lett 1983. [DOI: 10.1111/j.1574-6968.1983.tb00450.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
11
|
Byng GS, Eustice DC, Jensen RA. Biosynthesis of phenazine pigments in mutant and wild-type cultures of Pseudomonas aeruginosa. J Bacteriol 1979; 138:846-52. [PMID: 110770 PMCID: PMC218113 DOI: 10.1128/jb.138.3.846-852.1979] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pigmentation mutants of Pseudomonas aeruginosa, selected by observed visual differences in coloration from the wild-type strain, were examined for altered patterns of phenazine synthesis. Three classes of mutants that were incapable of pyocyanine production were identified. Pigmentation patterns that were found to characterize the various mutant classes implicated precursor-product relationships, and a biochemical scheme covering the terminal reactions of pyocyanine biosynthesis is proposed. Among compounds tested as inhibitors of pigmentation, two effectively inhibited pyocyanine production production while allowing cell growth. p-Aminobenzoate inhibited total pigmentation; i.e., no other phenazine accumulated. m-Aminobenzoate inhibited a presumptive methylation step in pyocyanine biosynthesis, abolishing the formation of pyocyanine and aeruginosin pigments but increasing the yields of phenazine 1-carboxylic acid and oxychlororaphin. D-[2,3,4,5(n)-14C]shikimate was most efficiently incorporated into phenazines in the middle to late exponential phase of growth. Label was incorporated predominantly into pyocyanine in the absence of inhibitors and into phenazine 1-carboxylic acid when the organism was grown in the presence of m-aminobenzoate.
Collapse
|