A.-E. Rotaru

Adaptation of a methanogen to the constructed environment

This study identifies genomic adaptations in Methanococcus maripaludis Mic1c10 that enable corrosive behavior on constructed surfaces through a [NiFe]-hydrogenase linked to Fe0 electron transfer.

The Fate of DIET Consortium exposed to continuous and intermittent electrochemical stimulation

This study shows that electrochemical stimulation reduces methane production and consortium survival in a defined DIET co-culture.

Opportunistic interactions on Fe0 between methanogens and acetogens from a climate lake

This study investigates Fe0 corrosion by microbial communities in anoxic lake sediments, revealing an opportunistic interaction where acetogens enhance methanogenesis while being negatively affected by methanogens.

Extracellular electron uptake in Methanosarcinales is independent of multiheme c-type cytochromes

This study shows that Methanosarcinales can uptake extracellular electrons without multiheme c-type cytochromes, suggesting an alternative mechanism for direct interspecies electron transfer.

Syntrophus Conductive Pili Demonstrate that Common Hydrogen-Donating Syntrophs can have a Direct Electron Transfer Option

The paper shows that Syntrophus aciditrophicus can use direct interspecies electron transfer via conductive pili, challenging the belief that hydrogen/formate transfer is the primary mechanism in syntrophic communities.

Baltic Methanosarcina and Clostridium compete for electrons from metallic iron

The paper investigates the role of Methanosarcina and Clostridium in Fe0 corrosion under methanogenic conditions, finding that Methanosarcina can corrode iron independently and outcompetes acetogens for electrons.

Extracellular electron uptake by two Methanosarcina species

This study examines the ability of two Methanosarcina species to accept electrons directly from insoluble donors and find that only M. barkeri can perform electromethanogenesis under fixed potential conditions.

Interspecies interactions mediated by conductive minerals in the sediments of the ferruginous Lake La Cruz, Spain

The paper shows that conductive minerals in Lake La Cruz sediments enable syntrophic interactions between microbial species, preventing acetate accumulation and supporting methanogenic activity.

Conductive particles enable syntrophic acetate oxidation between Geobacter and Methanosarcina from coastal sediments

The paper shows conductive minerals enable electron transfer between Geobacter and Methanosarcina for syntrophic acetate oxidation in coastal sediments, increasing methanogenesis.

Potential for Methanosarcina to contribute to uranium reduction during acetate-promoted groundwater bioremediation

This study shows Methanosarcina can reduce uranium in groundwater after Fe(III) oxides are depleted, suggesting a new role in bioremediation.