Oxygen promotes biofilm formation of Shewanella putrefaciens CN32 through a diguanylate cyclase and an adhesin [PDF]
Scientific Reports, 2013 Although oxygen has been reported to regulate biofilm formation by several Shewanella species, the exact regulatory mechanism mostly remains unclear. Here, we identify a direct oxygen-sensing diguanylate cyclase (DosD) and reveal its regulatory role in biofilm formation by Shewanella putrefaciens CN32 under aerobic conditions.
Han-Qing Yu, Chao Wu, Wen-Wei Li
exaly +7 more sources
Sodium Lactate Negatively Regulates Shewanella putrefaciens CN32 Biofilm Formation via a Three-Component Regulatory System (LrbS-LrbA-LrbR). [PDF]
Applied and Environmental Microbiology, 2017 ABSTRACT The capability of biofilm formation has a major impact on the industrial and biotechnological applications of Shewanella putrefaciens CN32. However, the detailed regulatory mechanisms underlying biofilm formation in this strain remain largely unknown.
Weijie Liu, Yi Yang, Jinshui Yang
exaly +6 more sources
Electromagnetic Field Drives the Bioelectrocatalysis of γ-Fe2O3-Coated Shewanella putrefaciens CN32 to Boost Extracellular Electron Transfer. [PDF]
Materials (Basel)The microbial hybrid system modified by magnetic nanomaterials can enhance the interfacial electron transfer and energy conversion under the stimulation of a magnetic field. However, the bioelectrocatalytic performance of a hybrid system still needs to be improved, and the mechanism of magnetic field-induced bioelectrocatalytic enhancements is still ...
Wang X, Shi Z, Wang Z, Wu X.
europepmc +4 more sources
Electron Donor Utilization and Secondary Mineral Formation during the Bioreduction of Lepidocrocite by Shewanella putrefaciens CN32 [PDF]
Minerals, 2019 The bioreduction of Fe(III) oxides by dissimilatory iron reducing bacteria (DIRB) may result in the production of a suite of Fe(II)-bearing secondary minerals, including magnetite, siderite, vivianite, green rusts, and chukanovite; the formation of specific phases controlled by the interaction of various physiological and geochemical factors.
Edward J. O’Loughlin +3 more
openaire +2 more sources
Structure of the GDP-bound state of the SRP GTPase FlhF. [PDF]
Acta Crystallogr F Struct Biol CommunThis study presents the X‐ray structure of FlhF in its GDP‐bound state at a resolution of 2.28 Å, exhibiting the classical N‐ and G‐domain fold. Comparative analysis with GTP‐loaded FlhF elucidates the conformational changes associated with GTP hydrolysis.The GTPase FlhF, a signal recognition particle (SRP)‐type enzyme, is pivotal for spatial–numerical
Dornes A, Mais CN, Bange G.
europepmc +2 more sources
Promoting Shewanella Bidirectional Extracellular Electron Transfer for Bioelectrocatalysis by Electropolymerized Riboflavin Interface on Carbon Electrode [PDF]
Frontiers in Microbiology, 2019 The extracellular electron transfer (EET) that connects the intracellular metabolism of electroactive microorganisms to external electron donors/acceptors, is the foundation to develop diverse microbial electrochemical technologies.
Long Zou +4 more
doaj +2 more sources
The global regulation of c-di-GMP and cAMP in bacteria. [PDF]
mLifeAbstract Nucleotide second messengers are highly versatile signaling molecules that regulate a variety of key biological processes in bacteria. The best‐studied examples are cyclic AMP (cAMP) and bis‐(3′–5′)‐cyclic dimeric guanosine monophosphate (c‐di‐GMP), which both act as global regulators.
Liu C +7 more
europepmc +2 more sources
Fast Start-Up Microfluidic Microbial Fuel Cells With Serpentine Microchannel [PDF]
Frontiers in Microbiology, 2018 Microfluidic microbial fuel cells (MMFCs) are promising green power sources for future ultra-small electronic devices. The MMFCs with co-laminar microfluidic structure are superior to other MMFCs according to their low internal resistance and relative ...
Xian Luo +17 more
doaj +2 more sources
Redox Sensing within the Genus Shewanella
Frontiers in Microbiology, 2018 A novel bacterial behavior called congregation was recently described in Shewanella oneidensis MR-1 as the accumulation of cells around insoluble electron acceptors (IEA). It is the result of a series of “run-and-reversal” events enabled by modulation of
Howard W. Harris +7 more
doaj +2 more sources
Food Science and Human WellnessAs a specific spoilage organism of seafood under refrigerated temperature conditions, Shewanella spp. tend to form biofilms that exacerbate the occurrence of seafood spoilage.
Zhenghao Guo +3 more
doaj +2 more sources