Candidatus Syntrophosphaera thermopropionivorans: a novel player in syntrophic propionate oxidation during anaerobic digestion.

08:00 EDT 15th April 2019 | BioPortfolio

Summary of "Candidatus Syntrophosphaera thermopropionivorans: a novel player in syntrophic propionate oxidation during anaerobic digestion."

Propionate is an important intermediate in the anaerobic mineralization of organic matter. In methanogenic environments its degradation relies on syntrophic associations between syntrophic propionate-oxidizing bacteria (SPOB) and Archaea. However, only ten isolated species have been identified as SPOB so far. We report syntrophic propionate oxidation in thermophilic enrichments of Candidatus Syntrophosphaera thermopropionivorans, a novel representative of the candidate phylum Cloacimonetes. In enrichment culture, methane was produced from propionate, while Ca. S. thermopropionivorans contributed 63% to total bacterial cells. The draft genome of Ca. S. thermopropionivorans encodes genes for propionate oxidation via methymalonyl-CoA. Phylogenetically, Ca. S. thermopropionivorans affiliates with the uncultured Cloacimonadaceae W5 and is more distantly related (86.4% 16S rRNA gene identity) to Ca. Cloacimonas acidaminovorans. Although Ca. S. thermopropionivorans was enriched from a thermophilic biogas reactor, Ca. Syntrophosphaera was in particular associated with mesophilic anaerobic digestion systems. 16S rRNA gene amplicon sequencing and a novel genus-specific quantitative PCR assay consistently identified Ca. Syntrophosphaera/Cloacimonadaceae W5 in 9 out of 12 tested full-scale biogas reactors thereby outnumbering other SPOB such as Pelotomaculum, Smithella and Syntrophobacter. Taken together the ubiquity and abundance of Ca. Syntrophosphaera, those SPOB might be key players for syntrophic propionate metabolism that have been overlooked before. This article is protected by copyright. All rights reserved.


Journal Details

This article was published in the following journal.

Name: Environmental microbiology reports
ISSN: 1758-2229


DeepDyve research library

PubMed Articles [2590 Associated PubMed Articles listed on BioPortfolio]

Inhibitory effects of ammonia on syntrophic propionate oxidation in anaerobic digester sludge.

Syntrophic propionate oxidation (SPO) coupled with methanogenesis is often inhibited under high ammonium concentrations in anaerobic digesters. However, the inhibitory mechanism remains poorly underst...

Growth Characteristics and Thermodynamics of Syntrophic Acetate Oxidizers.

Syntrophic acetate oxidation (SAO) plays a pivotal role in biogas production processes when aceticlastic methanogens are inhibited. Despite the importance of SAO, the metabolic interactions and syntro...

Degradation of organic pollutants by anaerobic methane-oxidizing microorganisms using methyl orange as example.

Anaerobic oxidation of methane (AOM) microorganisms widespread in nature and they are able to utilize methane as electron donor to reduce sulfate, nitrate, nitrite, and high valence metals. However, w...

Acceleration of perchloroethylene dechlorination by extracellular secretions from Microbacterium in a mixed culture containing Desulfitobacterium.

The study was conducted to demonstrate the influence of extracellular secretions from Microbacterium on the reductive dechlorination of tetrachloroethene (PCE). A series of mixed cultures were establi...

A Phase 2, Multicenter, Double-Blind, Randomized, Vehicle-Controlled Clinical Study to Compare the Safety and Efficacy of a Halobetasol Propionate 0.01% lotion and Halobetasol Propionate 0.05% cream in the Treatment of Plaque Psoriasis.

Halobetasol propionate (HP) 0.05% is a highly effective short-term treatment for plaque psoriasis.

Clinical Trials [440 Associated Clinical Trials listed on BioPortfolio]

Repeat Dose Study of Fluticasone Propionate/Salmeterol Versus Fluticasone Propionate + Salmeterol In Asthmatics

A new formulation of Fluticasone propionate/Salmeterol comparing a lower dose of fluticasone propionate and salmeterol was compared with concurrent administration of fluticasone propionat...

A Comparison Between Clobetasol Propionate 0.05% (Clobex®) Spray and Clobetasol Propionate 0.05% (Olux®) Foam

The primary objective of this study is to evaluate the efficacy and safety of clobetasol propionate 0.05% (Clobex®) spray compared to clobetasol propionate 0.05% (Olux®) foam.

Safety and Efficacy of Propionate for Reduction of LDL Cholesterol

The objective of the trial is to evaluate a potential impact of food supplements with the short chain fatty acid propionate on blood LDL cholesterol level.

Study of Protein Translocation in Patients With Beta-Oxidation Disorders

OBJECTIVES: I. Characterize inheritance patterns of mutations in patients with beta-oxidation disorders.

Randomized Study to Compare the Bioavailability of Three Halobetasol Propionate 0.05% Topical Creams

The purpose of this study was to compare the relative vasoconstrictive effects of two test and one reference Halobetasol Propionate 0.05% Cream in healthy, female subjects.

Medical and Biotech [MESH] Definitions

An ester of TESTOSTERONE with a propionate substitution at the 17-beta position.

An optical disk storage system used on specialized players that combine the functions of computer and CD player in a self-contained box, designed to be connected to a television set and a home stereo for video and sound output. The player is controlled with a hand-held remote unit resembling a television remote control. (J Allied Health 1993 Winter;22(1):131-8)

A propionate derivative that is used to suppress coughing.

Portable electronics device for storing and playing audio and or media files. MP3 for MPEG-1 audio layer 3, is a digital coding format.

A flavoprotein that reversibly catalyzes the oxidation of NADH or NADPH by various quinones and oxidation-reduction dyes. The enzyme is inhibited by dicoumarol, capsaicin, and caffeine.

Quick Search


DeepDyve research library

Relevant Topics

Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...

DNA sequencing
DNA sequencing is the process of determining the precise order of nucleotides within a DNA molecule. During DNA sequencing, the bases of a small fragment of DNA are sequentially identified from signals emitted as each fragment is re-synthesized from a ...

Polymerase Chain Reaction (PCR)
PCR (Polymerase Chain Reaction) uses the ability of DNA polymerase (enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two ident...

Searches Linking to this Article