Results 71 to 80 of about 6,510,636 (350)

Novel Extracellular Electron Transfer Channels in a Gram-Positive Thermophilic Bacterium

Frontiers in Microbiology, 2021
Biogenic transformation of Fe minerals, associated with extracellular electron transfer (EET), allows microorganisms to exploit high-potential refractory electron acceptors for energy generation.
Sergey N. Gavrilov, Daria G. Zavarzina, Ivan M. Elizarov, Tamara V. Tikhonova, Natalia I. Dergousova, Vladimir O. Popov, Vladimir O. Popov, Jonathan R. Lloyd, David Knight, Mohamed Y. El-Naggar, Sahand Pirbadian, Kar Man Leung, Frank T. Robb, Maksim V. Zakhartsev, Orianna Bretschger, Elizaveta A. Bonch-Osmolovskaya, Elizaveta A. Bonch-Osmolovskaya   +16 more
doaj   +1 more source

Seasonal and spatial variation in the potential for iron reduction in soils of the Southeastern Piedmont of the US

CATENA, 2019
Soil iron reduction influences ecosystem function by altering the cycling of carbon, nutrients, and trace elements in both the aqueous and solid phases. Most of our understanding of soil iron reduction comes from work on saturated soils.
C. Hodges, J. Mallard, D. Markewitz, Diego Barcellos, A. Thompson   +4 more
semanticscholar   +1 more source

Influence of Reduction Condition on the Morphology of Newly Formed Metallic Iron During the Fluidized Bed Reduction of Fine Iron Ores and its Corresponding Agglomeration Behavior

, 2016
The fine iron ores from Chile are reduced in a laboratory fluidized bed at 973-1173 K with CO-H-2-CO2 mixtures to investigate the influence of reduction condition on the morphology of newly formed metallic iron and its corresponding agglomeration ...
Pan, Feng, Li, Hongzhong, Fan, Chuanlin, Du, Zhan, Zhu, Qingshan, Xie, Zhaohui   +5 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Characteristics of an Iron-Reducing, Moderately Acidophilic Actinobacterium Isolated from Pyritic Mine Waste, and Its Potential Role in Mitigating Mineral Dissolution in Mineral Tailings Deposits

Microorganisms, 2020
Reactive pyritic mine tailings can be populated by chemolithotrophic prokaryotes that enhance the solubilities of many metals, though iron-reducing heterotrophic microorganisms can inhibit the environmental risk posed by tailings by promoting processes ...
Ivan Nancucheo, D. Barrie Johnson
doaj   +1 more source

A Single Bacterium Capable of Oxidation and Reduction of Iron at Circumneutral pH

Microbiology Spectrum, 2021
Fe(II)-oxidizing microorganisms and Fe(III)-reducing microorganisms, which drive the biogeochemical Fe cycle on the Earth’s surface, are phylogenetically and ecologically diverse.
Shingo Kato, Moriya Ohkuma
doaj   +1 more source

Roles of UndA and MtrC of Shewanella putrefaciens W3-18-1 in iron reduction

, 2013
Background: The completion of genome sequencing in a number of Shewanella species, which are most renowned for their metal reduction capacity, offers a basis for comparative studies.
Yang, YF (reprint author), Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China., Yang, Yunfeng, Zhou, Jizhong, Chen, Jingrong, Qiu, Dongru   +4 more
core   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Iron reduction by psychrotrophic enrichment cultures [PDF]

FEMS Microbiology Ecology, 1999
Psychrotrophic (
, Zhang, , Stapleton, , Zhou, , Palumbo, , Phelps   +4 more
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source