Results 101 to 110 of about 16,954 (214)
Moorella thermoacetica is the model organism for elucidation of acetogenesis. The reduction of CO2 to acetate is well studied, but how redox carrier balancing and energy conservation are maintained during autotrophic growth and how H2 is oxidised remains enigmatic.
Florian P. Rosenbaum +3 more
wiley +1 more source
We report here a comparative analysis of the genome sequence of Methanosarcina barkeri with those of Methanosarcina acetivorans and Methanosarcina mazei. The genome of M. barkeri is distinguished by having an organization that is well conserved with respect to the other Methanosarcina spp.
Maeder, Dennis L. +10 more
openaire +3 more sources
A biochemical framework for anaerobic oxidation of methane driven by Fe(III)-dependent respiration
The unavailability of pure cultures has prevented a mechanistic understanding of anaerobic methanotrophy. Here the authors report a biochemical investigation of Methanosarcina acetivorans that supports a pathway anchored by Fe(III)-dependent mechanisms ...
Zhen Yan +3 more
doaj +1 more source
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Ma. del Carmen Orozco‐Mosqueda +7 more
wiley +1 more source
Insights into the NrpR regulon in Methanosarcina mazei Gö1
The methanogenic archaeon Methanosarcina mazei strain Gö1 contains two homologues of NrpR, the transcriptional repressor of nitrogen assimilation genes recently discovered and characterized in Methanococcus maripaludis. Insertion of a puromycin-resistance conferring cassette into MM1085 encoding a single NrpR domain with an N-terminal helix-turn-helix ...
Weidenbach, Katrin +4 more
openaire +3 more sources
Bioenergetics of methanogenesis from acetate by Methanosarcina barkeri [PDF]
Methane formation from acetate by resting cells of Methanosarcina barkeri was accompanied by an increase in the intracellular ATP content from 0.9 to 4.0 nmol/mg of protein. Correspondingly, the proton motive force increased to a steady-state level of -120 mV.
S, Peinemann +3 more
openaire +2 more sources
Magnetite nanoparticles (nanoFe3O4) have been reported to facilitate direct interspecies electron transfer (DIET) between syntrophic bacteria and methanogens thereby improving syntrophic methanogenesis.
Li Fu +7 more
doaj +1 more source
Increasing sulfate levels show a differential impact on synthetic communities comprising different methanogens and a sulfate reducer [PDF]
Methane producing microbial communities are of ecological and biotechnological interest. Syntrophic interactions among sulphate reducers and aceto/hydrogenotrophic and obligate hydrogenotrophic methanogens form a key component of these communities, yet ...
Chen, Jing +3 more
core +3 more sources
We tested whether anaerobic digesters could operate at lower temperatures without losing methane production. Pilot‐scale reactors were run at 48°C or 55°C. Methane yields and gas quality were similar. Lower temperatures reduced volatile fatty acids and supported more diverse microbial communities.
Richard K. Tennant +10 more
wiley +1 more source
Direct interspecies electron transfer (DIET) has been recognized as an alternative to interspecies H2 transfer as a mechanism for syntrophic growth, but previous studies on DIET with defined co-cultures have only documented DIET with ethanol as the ...
Li-YIng eWang +4 more
doaj +1 more source

