XRD Graphite Manufacturingsyntrophic anaerobic photosynthesis via direct interspecies

Researchers discover unique microbial photosynthesis

They report today on the unique metabolic process seen for the first time in a pair of bacteria in Nature Communications (Syntrophic anaerobic photosynthesis via direct interspecies electron transfer). Photosynthetic bacteria account for nearly half of the

Syntrophic anaerobic photosynthesis via direct interspecies

Here we describe a form of metabolism linking anoxygenic photosynthesis to anaerobic respiration that we call `syntrophic anaerobic photosynthesis'. We show that photoautotrophy in the green sulfur bacterium Prosthecochloris aestaurii can be driven by either electrons from a solid electrode or acetate oxidation via direct interspecies electron transfer from a heterotrophic partner bacterium

A modeling approach to direct interspecies electron

Recent studies have shown that direct interspecies electron transfer (DIET) plays an important part in contributing to methane production from anaerobic digestion. However, so far anaerobic digestion models that have been proposed only consider two pathways for methane production, namely, acetoclastic methanogenesis and hydrogenotrophic methanogenesis, via indirect interspecies

Electrochemical evidence for direct interspecies electron

2019/6/1The syntrophic photosynthesis via direct interspecies electron transfer (DIET) between Geobacter sulfurreducens and Prosthecochloris aestuarii has opened a new paradigm of microbial phototrophy. However, it is still unknown whether this photosynthetic DIET can be mediated by an electrical conductor.

Direct Interspecies Electron Transfer in advanced anaerobic

Direct Interspecies Electron Transfer in advanced anaerobic digestion system for gaseous transport biofuel production Anaerobic digestion (AD) has been widely applied to produce biogas through complex communities of syntrophic bacteria and methanogenic

OPUS at UTS: A modeling approach to direct interspecies

However, so far anaerobic digestion models that have been proposed only consider two pathways for methane production, namely, acetoclastic methanogenesis and hydrogenotrophic methanogenesis, via indirect interspecies hydrogen transfer, which lacks an

Establishing Direct Interspecies Electron Transfer

2018/8/23Direct interspecies electron transfer (DIET) has been considered as an effective working mode to proceed with syntrophic metabolism, which is not yet established in the anaerobic digesters treating waste activated sludge (WAS), due to the lack of DIET-based syntrophs capable of producing the biological electrical connection and slow hydrolysis/acidification limiting the available substrates

2017 Poster Authors and Abstracts

Abstract: Corroles are aromatic compounds consisting of four pyrrole-like subunits connected in a ring via three methane bridges and one direct bond between the alpha carbons of two of the subunits. They have a structure and photophysical properties similar to that of porphyrins, which are currently being researched in blocking tumor progression and metastasis.

Biogeochemistry of methanogenesis with a specific emphasis

transfer via chemical mediators, direct interspecies electron transfer (DIET) can occur. In this Review, we describe the syntrophic, and methano-genic microorganisms are involved in the anaerobic decomposition of organic polymers. A series of interme- et al

This effect occurs due to the interspecies electron exchange for the syntrophic metabolisrh of alcohols and volatile fatty acids (VFAs) via interspecies H-2 transfer (IHT). Conductive materials can promote direct interspecies electron transfer (DIET) between the syntrophs and methanogens, providing an alternative to IHT.

Carbon cloth stimulates direct interspecies electron transfer in syntrophic

Carbon cloth stimulates direct interspecies electron transfer in syntrophic co-cultures Shanshan Chena, Amelia-Elena Rotarua,b,, Fanghua Liua,c, Jo Philipsa, Trevor L. Woodarda, Kelly P. Nevina, Derek R. Lovleya a Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA

Relating Anaerobic Digestion Microbial Community and Process Function : Supplementary Issue: Water Microbiology

direct interspecies electron transfer mechanisms and how it can be encouraged in engineered systems. Most commonly observed syntrophic acetogens in anaerobic digesters involved in propionate degradation belong to the genera such as Pelotomaculum,, and

IJERPH

9 Quality of the granular sludge developed during the start-up of anaerobic up-flow sludge bed reactors is of crucial importance to ensure the process feasibility of treating industrial wastewater such as those containing solvents. In this study, the microbial granule formation from suspended-growth biomass was investigated in two chitosan-assisted reactors. These reactors operated mimicking

Syntrophic growth with direct interspecies electron transfer

for syntrophic anaerobic photosynthesis [7]. However, the electrically conductive function of pili in DIET seems ambiguous, as the nonconductive pili of Candidatus Desulfofervidus auxilii can also participate in DIET with ANME-1 [6, 14]. Moreover, the direct

Direct Exchange of Electrons Within Aggregates of an

Syntrophic bacteria live on the metabolic by-products of a partner species. The exchange of the by-products accompanies a flow of electrons in the opposite direction that helps some species grow in conditions that would otherwise be unfavorable. In mixed anaerobic cultures of two related Geobacter species, Summers et al. (p. [1413][1]) observed that one species evolved to promote the transfer

Enhancement of methanogenesis by electric syntrophy

In the syntrophic methanogenesis reaction, interspecies electron transfer (IET) from chemoheterotrophic bacteria to methanogenic archaea had been considered to occur only via diffusion of small molecules (e.g., H 2 and formate) as electron carriers (Kato2010).

Syntrophic growth with direct interspecies electron transfer

Direct interspecies electron transfer (DIET) may prevail in microbial communities that show methanogenesis and anaerobic methane oxidation and can be an electron source to support anaerobic photosynthesis. Previous mutagenic studies on cocultures of

A novel bioaugmentation strategy to accelerate

2018/11/15Based on the new syntrophic methanogenesis route via direct interspecies electron transfer (DIET), a novel bioaugmentation method by adding exoelectrogenic Geobacter species to accelerate methanogenesis was developed in this study.

Performance and Microbial Community Analysis of

Abstract Conductive materials can accelerate and stabilize the conversion of organic substrates to biomethane via direct interspecies electron transfer (DIET). However, the potential effect of DIET on complex wastes, such as lignocellulosic biomass, is still unclear. In this study, acetylene black (AB) or hydrochar (HC) were used to enhance the anaerobic digestion (AD) performance of vinegar

2017 Poster Authors and Abstracts

Abstract: Corroles are aromatic compounds consisting of four pyrrole-like subunits connected in a ring via three methane bridges and one direct bond between the alpha carbons of two of the subunits. They have a structure and photophysical properties similar to that of porphyrins, which are currently being researched in blocking tumor progression and metastasis.

Interspecies Electron Transfer via Hydrogen and Formate

Direct interspecies electron transfer (DIET) is an alternative to interspecies H2/formate transfer as a mechanism for microbial species to cooperatively exchange electrons during syntrophic metabolism. To understand what specific properties

Syntrophic anaerobic photosynthesis via direct interspecies

article{osti_1347843, title = {Syntrophic anaerobic photosynthesis via direct interspecies electron transfer}, author = {Ha, Phuc T. and Lindemann, Stephen R. and Shi, Liang and Dohnalkova, Alice C. and Fredrickson, James K. and Madigan, Michael T. and Beyenal, Haluk}, abstractNote = {Microbial phototrophs, key primary producers on Earth, use H2O, H2, H2S and other reduced inorganic

Diverse Syntrophic Partnerships from Deep

Diverse syntrophic partnerships from deep-sea methane vents revealed by direct cell capture and metagenomics Annelie Pernthaler***, Anne E. Dekas*, C. Titus Brown5, Shana K. Goffredi*, Tsegereda Embaye*, and Victoria J. Orphan**5 Divisions of *Geological and

Methanobacterium Capable of Direct Interspecies Electron

Direct interspecies electron transfer (DIET) from bacteria to methanogens is a revolutionary concept for syntrophic metabolism in methanogenic soils/sediments and anaerobic digestion. Previous studies have indicated that the potential for DIET is limited to

Turning Waste into Fuels, Microbial Style

Syntrophic anaerobic photosynthesis reveals options for tailoring microbial communities. The groupings could help treat waste and produce energy. The challenges of treating wastewater is obvious in the average utility bill. Today's treatment methods often use