Here we demonstrate that elimination of ClaI restriction site from the sequence of a plasmid DNA increases the efficiency of transformation of Shewanella oneidensis MR-1 significantly. To achieve reliable transformation of S. oneidensis MR-1 plasmids either lacking ClaI site or isolated from primary transformants of S. oneidensis should be used.
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http://dx.doi.org/10.1016/j.mimet.2014.01.009 | DOI Listing |
Microorganisms
November 2024
School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan 430078, China.
Iron, Earth's most abundant redox-active metal, undergoes both abiotic and microbial redox reactions that regulate the formation, transformation, and dissolution of iron minerals. The electron transfer between ferrous iron (Fe(II)) and ferric iron (Fe(III)) is critical for mineral dynamics, pollutant remediation, and global biogeochemical cycling. Bacteria play a significant role, especially in anaerobic Fe(II) oxidation, contributing to Fe(III) mineral formation in oxygen-depleted environments.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
A biofuel cell is an electrochemical device using exoelectrogen or biocatalysts to transfer electrons from redox reactions to the electrodes. While wild-type microbes and natural enzymes are often employed as exoelectrogen and biocatalysts, genetically engineered or modified organisms have been developed to enhance exoelectrogen activity. Here, we demonstrated a redox-enzyme integrated microbial fuel cell (REI-MFC) design based on an exoelectrogen-enhancing strategy that reinforces the electrogenic activity of MR1 by displaying an extra redox enzyme on the cell surface.
View Article and Find Full Text PDFJ Environ Manage
December 2024
College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China. Electronic address:
Bioelectrochemical technology emerges as a promising approach for addressing the challenge of antibiotic residue contamination. This research innovated by incorporating in-situ self-assembled gold nanoparticles (Au-NPs) and reduced graphene oxide (rGO) into a co-cultured electroactive biofilm (EAB) of Raoultella sp. DB-1 and Shewanella oneidensis MR-1 (Au-rGO@R/S-C).
View Article and Find Full Text PDFEnviron Res
December 2024
School of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China. Electronic address:
Fulvic acid (FA) derived from composting functions can act as electron shuttle, facilitating and expediting the redox reaction during the composting process. However, limited research has been conducted on the redox capacity and structural transformation of FA during composting with different biowastes. The Fe (II) production quantity of the single S.
View Article and Find Full Text PDFBiofilm
December 2024
EPHE, PSL, UMR CNRS 7564, LCPME, F-54000, Nancy, France.
Understanding pioneer bacterial adhesion is essential to appreciate bacterial colonization and consider appropriate control strategies. This bacterial entrapment at the wall is known to be controlled by many physical, chemical or biological factors, including hydrodynamic conditions. However, due to the nature of early bacterial adhesion, i.
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