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Mechanisms of extracellular electron transfer in anaerobic methanotrophic archaea [PDF]

Nature Communications, 2023
Anaerobic methanotrophic (ANME) archaea are environmentally important, uncultivated microorganisms that oxidize the potent greenhouse gas methane. During methane oxidation, ANME archaea engage in extracellular electron transfer (EET) with other microbes,
Heleen T. Ouboter, Rob Mesman, Tom Sleutels, Jelle Postma, Martijn Wissink, Mike S. M. Jetten, Annemiek Ter Heijne, Tom Berben, Cornelia U. Welte   +8 more
doaj   +9 more sources

Multi-heme cytochrome-mediated extracellular electron transfer by the anaerobic methanotroph 'Candidatus Methanoperedens nitroreducens'. [PDF]

Nat Commun, 2023
Anaerobic methanotrophic archaea (ANME) carry out anaerobic oxidation of methane, thus playing a crucial role in the methane cycle. Previous genomic evidence indicates that multi-heme c-type cytochromes (MHCs) may facilitate the extracellular electron ...
Zhang X, Joyce GH, Leu AO, Zhao J, Rabiee H, Virdis B, Tyson GW, Yuan Z, McIlroy SJ, Hu S.   +9 more
europepmc   +4 more sources

Transcriptional regulation of living materials via extracellular electron transfer. [PDF]

Nat Chem Biol
Engineered living materials combine the advantages of biological and synthetic systems by leveraging genetic and metabolic programming to control material-wide properties. Here, we demonstrate that extracellular electron transfer (EET), a microbial respiration process, can serve as a tunable bridge between live cell metabolism and synthetic material ...
Graham AJ, Partipilo G, Dundas CM, Miniel Mahfoud IE, Halwachs KN, Holwerda AJ, Simmons TR, FitzSimons TM, Coleman SM, Rinehart R, Chiu D, Tyndall AE, Sajbel KC, Rosales AM, Keitz BK.   +14 more
europepmc   +6 more sources

Co-occurrence of direct and indirect extracellular electron transfer mechanisms during electroactive respiration in a dissimilatory sulfate reducing bacterium [PDF]

Microbiology Spectrum
Understanding the extracellular electron transfer mechanisms of electroactive bacteria could help determine their potential in microbial fuel cells (MFCs) and their microbial syntrophy with redox-active minerals in natural environments.
Liyuan Hou, Rebecca Cortez, Michael Hagerman, Zhiqiang Hu, Erica L.-W. Majumder   +4 more
doaj   +3 more sources

Engineered Cell Elongation Promotes Extracellular Electron Transfer of Shewanella Oneidensis [PDF]

Advanced Science
To investigate how cell elongation impacts extracellular electron transfer (EET) of electroactive microorganisms (EAMs), the division of model EAM Shewanella oneidensis (S.
Feng Li, Huan Yu, Baocai Zhang, Chaoning Hu, Fei Lan, Yuxuan Wang, Zixuan You, Qijing Liu, Rui Tang, Junqi Zhang, Chao Li, Liang Shi, Wen‐Wei Li, Kenneth H. Nealson, ZhanYing Liu, Hao Song   +15 more
doaj   +3 more sources

Lack of physiological evidence for cytochrome filaments functioning as conduits for extracellular electron transfer [PDF]

mBio
Extracellular cytochrome filaments are proposed to serve as conduits for long-range extracellular electron transfer. The primary functional physiological evidence has been the reported inhibition of Geobacter sulfurreducens Fe(III) oxide reduction when ...
Ingrid A. Schwarz, Baha Alsaqri, Yassir Lekbach, Kathryn Henry, Sydney Gorman, Trevor Woodard, Laura Dion, Lauren Real, Dawn E. Holmes, Jessica A. Smith, Derek R. Lovley   +10 more
doaj   +3 more sources

Crucial roles of intracellular cyclic di-GMP in impacting the genes important for extracellular electron transfer by Geobacter metallireducens [PDF]

Applied and Environmental Microbiology
To investigate the roles of intracellular c-di-GMP in bacterial extracellular electron transfer (EET), three Geobacter metallireducens strains with high (Gme-H), intermediate (Gme-C), and low (Gme-L) intracellular levels of c-di-GMP were constructed via ...
Yongguang Jiang, Lin Sun, Lingyu Hou, Yidan Hu, Zhou Jiang, Yiran Dong, Hao Song, Liang Shi   +7 more
doaj   +3 more sources

Extracellular electron transfer genes expressed by candidate flocking bacteria in cable bacteria sediment [PDF]

mSystems
Cable bacteria, filamentous sulfide oxidizers that live in sulfidic sediments, are at times associated with large flocks of swimming bacteria. It has been proposed that these flocks of bacteria transport electrons extracellularly to cable bacteria via an
Jamie J. M. Lustermans, Mantas Sereika, Laurine D. W. Burdorf, Mads Albertsen, Andreas Schramm, Ian P. G. Marshall   +5 more
doaj   +4 more sources

In situ role of extracellular polymeric substances in microbial electron transfer by Methylomonas sp. LW13

Fundamental Research, 2021
Extracellular polymeric substances (EPS), produced by microorganisms, establish the functional and structural integrity of microbial biofilms. In biological wastewater treatments, the transformation of pollutants largely relies on microbial electron ...
Huan Wang, Yue Zheng, Baoli Zhu, Feng Zhao   +3 more
doaj   +2 more sources

Crossing the Wall: Characterization of the Multiheme Cytochromes Involved in the Extracellular Electron Transfer Pathway of Thermincola ferriacetica [PDF]

Microorganisms, 2021
Bioelectrochemical systems (BES) are emerging as a suite of versatile sustainable technologies to produce electricity and added-value compounds from renewable and carbon-neutral sources using electroactive organisms.
Marisa M. Faustino, Bruno M. Fonseca, Nazua L. Costa, Diana Lousa, Ricardo O. Louro, Catarina M. Paquete   +5 more
doaj   +2 more sources