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  1. Book ; Online: International Society for Microbial Electrochemistry and Technology: outputs from the 2018 Regional Meetings

    Glaven, Sarah / Schröder, Uwe / Hao Yu, Eileen / Mutnuri, Srikanth / Gralnick, Jeffrey A. / Ho Chan, Chi

    2020  

    Keywords Civil engineering, surveying & building ; microbial electrochemical technologies (MET) ; electromicrobiology ; International Society for Microbial Electrochemistry and Technologies ; microbial electrochemistry ; electroactive bacteria
    Size 1 electronic resource (241 pages)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021231258
    ISBN 9782889638420 ; 2889638421
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Extracellular organic disulfide reduction by

    Phan, Jonathan / Macwan, Shine / Gralnick, Jeffrey A / Yee, Nathan

    Microbiology spectrum

    2024  Volume 12, Issue 4, Page(s) e0408123

    Abstract: Microbial reduction of organic disulfides affects the macromolecular structure and chemical reactivity of natural organic matter. Currently, the enzymatic pathways that mediate disulfide bond reduction in soil and sedimentary organic matter are poorly ... ...

    Abstract Microbial reduction of organic disulfides affects the macromolecular structure and chemical reactivity of natural organic matter. Currently, the enzymatic pathways that mediate disulfide bond reduction in soil and sedimentary organic matter are poorly understood. In this study, we examined the extracellular reduction of 5,5'-dithiobis(2-nitrobenzoic acid) (DTNB) by
    MeSH term(s) Dithionitrobenzoic Acid/metabolism ; Ecosystem ; Oxidation-Reduction ; Shewanella/genetics ; Shewanella/metabolism ; Cytochromes/metabolism ; Sulfur/metabolism ; Disulfides ; Sulfur Compounds/metabolism
    Chemical Substances Dithionitrobenzoic Acid (9BZQ3U62JX) ; Cytochromes ; Sulfur (70FD1KFU70) ; Disulfides ; Sulfur Compounds
    Language English
    Publishing date 2024-02-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.04081-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Engineering lithoheterotrophy in an obligate chemolithoautotrophic Fe(II) oxidizing bacterium.

    Jain, Abhiney / Gralnick, Jeffrey A

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 2165

    Abstract: Neutrophilic Fe(II) oxidizing bacteria like Mariprofundus ferrooxydans are obligate chemolithoautotrophic bacteria that play an important role in the biogeochemical cycling of iron and other elements in multiple environments. These bacteria generally ... ...

    Abstract Neutrophilic Fe(II) oxidizing bacteria like Mariprofundus ferrooxydans are obligate chemolithoautotrophic bacteria that play an important role in the biogeochemical cycling of iron and other elements in multiple environments. These bacteria generally exhibit a singular metabolic mode of growth which prohibits comparative "omics" studies. Furthermore, these bacteria are considered non-amenable to classical genetic methods due to low cell densities, the inability to form colonies on solid medium, and production of copious amounts of insoluble iron oxyhydroxides as their metabolic byproduct. Consequently, the molecular and biochemical understanding of these bacteria remains speculative despite the availability of substantial genomic information. Here we develop the first genetic system in neutrophilic Fe(II) oxidizing bacterium and use it to engineer lithoheterotrophy in M. ferrooxydans, a metabolism that has been speculated but not experimentally validated. This synthetic biology approach could be extended to gain physiological understanding and domesticate other bacteria that grow using a single metabolic mode.
    MeSH term(s) Chemoautotrophic Growth ; Green Fluorescent Proteins/metabolism ; Heterotrophic Processes ; Iron/metabolism ; Metabolic Engineering ; Oxidation-Reduction ; Plasmids/genetics ; Proteobacteria/growth & development ; Proteobacteria/metabolism ; Transformation, Genetic
    Chemical Substances Green Fluorescent Proteins (147336-22-9) ; Iron (E1UOL152H7)
    Language English
    Publishing date 2021-01-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-81412-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Reconstructing electron transfer components from an Fe(II) oxidizing bacterium.

    Jain, Abhiney / Kalb, Madison J / Gralnick, Jeffrey A

    Microbiology (Reading, England)

    2022  Volume 168, Issue 9

    Abstract: Neutrophilic Fe(II) oxidizing bacteria play an important role in biogeochemical processes and have also received attention for multiple technological applications. These micro-organisms are thought to couple their metabolism with extracellular electron ... ...

    Abstract Neutrophilic Fe(II) oxidizing bacteria play an important role in biogeochemical processes and have also received attention for multiple technological applications. These micro-organisms are thought to couple their metabolism with extracellular electron transfer (EET) while oxidizing Fe(II) as electron donor outside the cell.
    MeSH term(s) Electron Transport ; Electrons ; Ferrous Compounds/metabolism ; Oxidation-Reduction ; Periplasm/metabolism
    Chemical Substances Ferrous Compounds
    Language English
    Publishing date 2022-09-16
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1180712-x
    ISSN 1465-2080 ; 1350-0872
    ISSN (online) 1465-2080
    ISSN 1350-0872
    DOI 10.1099/mic.0.001240
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ud II Zs.140: Show issues Location:
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  5. Article ; Online: Comparison of phage-derived recombinases for genetic manipulation of

    Kalb, Madison J / Grenfell, Andrew W / Jain, Abhiney / Fenske-Newbart, Jane / Gralnick, Jeffrey A

    Microbiology spectrum

    2023  Volume 11, Issue 6, Page(s) e0317623

    Abstract: Importance: ... ...

    Abstract Importance: The
    MeSH term(s) Pseudomonas/genetics ; Pseudomonas/metabolism ; Recombinases/genetics ; Recombinases/metabolism ; Bacteriophages/genetics ; Bacteriophages/metabolism
    Chemical Substances Recombinases
    Language English
    Publishing date 2023-10-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.03176-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Plasmid copy number variation of a modular vector set in Shewanella oneidensis MR-1.

    Hajimorad, Meghdad / Gralnick, Jeffrey A

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

    2020  Volume 2020, Page(s) 2372–2375

    Abstract: To advance synthetic biology approaches that utilize S. oneidensis as host for biotechnology applications, we have investigated the variation in plasmid copy number of a modular vector set resulting from distinct origins of replication under different ... ...

    Abstract To advance synthetic biology approaches that utilize S. oneidensis as host for biotechnology applications, we have investigated the variation in plasmid copy number of a modular vector set resulting from distinct origins of replication under different conditions. The replicons yielded a ≈9X-fold range for plasmid copy number variation in S. oneidensis (while the same origins yielded a ≈3X-fold range in Escherichia coli). This provides a sizeable range to control gene expression levels in S. oneidensis for synthetic biology applications. In addition, plasmid harboring the pBBR1 origin resulted in stable copy numbers in S. oneidensis under different conditions (mid-logarithmic, stationary, multi-plasmid). This may enable the realization of synthetic circuits in S. oneidensis where predictable, quantitative behavior is desired (in either single- or double-plasmid contexts).
    MeSH term(s) DNA Copy Number Variations ; Escherichia coli/genetics ; Plasmids/genetics ; Shewanella/genetics
    Language English
    Publishing date 2020-10-05
    Publishing country United States
    Document type Journal Article
    ISSN 2694-0604
    ISSN (online) 2694-0604
    DOI 10.1109/EMBC44109.2020.9176029
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Evidence for auxiliary anaerobic metabolism in obligately aerobic Zetaproteobacteria.

    Jain, Abhiney / Gralnick, Jeffrey A

    The ISME journal

    2020  Volume 14, Issue 4, Page(s) 1057–1062

    Abstract: Zetaproteobacteria are obligate chemolithoautotrophs that oxidize Fe(II) as an electron and energy source, and play significant roles in nutrient cycling and primary production in the marine biosphere. Zetaproteobacteria thrive under microoxic conditions ...

    Abstract Zetaproteobacteria are obligate chemolithoautotrophs that oxidize Fe(II) as an electron and energy source, and play significant roles in nutrient cycling and primary production in the marine biosphere. Zetaproteobacteria thrive under microoxic conditions near oxic-anoxic interfaces, where they catalyze Fe(II) oxidation faster than the abiotic reaction with oxygen. Neutrophilic Fe(II) oxidizing bacteria produce copious amounts of insoluble iron oxyhydroxides as a by-product of their metabolism. Oxygen consumption by aerobic respiration and formation of iron oxyhydroxides at oxic-anoxic interfaces can result in periods of oxygen limitation for bacterial cells. Under laboratory conditions, all Zetaproteobacteria isolates have been shown to strictly require oxygen as an electron acceptor for growth, and anaerobic metabolism has not been observed. However, genomic analyses indicate a range of potential anaerobic pathways present in Zetaproteobacteria. Heterologous expression of proteins from Mariprofundus ferrooxydans PV-1, including pyruvate formate lyase and acetate kinase, further support a capacity for anaerobic metabolism. Here we define auxiliary anaerobic metabolism as a mechanism to provide maintenance energy to cells and suggest that it provides a survival advantage to Zetaproteobacteria in environments with fluctuating oxygen availability.
    MeSH term(s) Anaerobiosis ; Ferric Compounds ; Oxidation-Reduction ; Oxygen/metabolism ; Proteobacteria/genetics ; Proteobacteria/physiology ; Seawater/microbiology
    Chemical Substances Ferric Compounds ; ferric hydroxide (2UA751211N) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2020-01-22
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2406536-5
    ISSN 1751-7370 ; 1751-7362
    ISSN (online) 1751-7370
    ISSN 1751-7362
    DOI 10.1038/s41396-020-0586-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 7773: Show issues

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  8. Article ; Online: Engineering lithoheterotrophy in an obligate chemolithoautotrophic Fe(II) oxidizing bacterium

    Abhiney Jain / Jeffrey A. Gralnick

    Scientific Reports, Vol 11, Iss 1, Pp 1-

    2021  Volume 6

    Abstract: Abstract Neutrophilic Fe(II) oxidizing bacteria like Mariprofundus ferrooxydans are obligate chemolithoautotrophic bacteria that play an important role in the biogeochemical cycling of iron and other elements in multiple environments. These bacteria ... ...

    Abstract Abstract Neutrophilic Fe(II) oxidizing bacteria like Mariprofundus ferrooxydans are obligate chemolithoautotrophic bacteria that play an important role in the biogeochemical cycling of iron and other elements in multiple environments. These bacteria generally exhibit a singular metabolic mode of growth which prohibits comparative “omics” studies. Furthermore, these bacteria are considered non-amenable to classical genetic methods due to low cell densities, the inability to form colonies on solid medium, and production of copious amounts of insoluble iron oxyhydroxides as their metabolic byproduct. Consequently, the molecular and biochemical understanding of these bacteria remains speculative despite the availability of substantial genomic information. Here we develop the first genetic system in neutrophilic Fe(II) oxidizing bacterium and use it to engineer lithoheterotrophy in M. ferrooxydans, a metabolism that has been speculated but not experimentally validated. This synthetic biology approach could be extended to gain physiological understanding and domesticate other bacteria that grow using a single metabolic mode.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Engineering Cooperation in an Anaerobic Coculture.

    Kane, Aunica L / Szabo, Rachel E / Gralnick, Jeffrey A

    Applied and environmental microbiology

    2021  Volume 87, Issue 11

    Abstract: Over the past century, microbiologists have studied organisms in pure culture, yet it is becoming increasingly apparent that the majority of biological processes rely on multispecies cooperation and interaction. While little is known about how such ... ...

    Abstract Over the past century, microbiologists have studied organisms in pure culture, yet it is becoming increasingly apparent that the majority of biological processes rely on multispecies cooperation and interaction. While little is known about how such interactions permit cooperation, even less is known about how cooperation arises. To study the emergence of cooperation in the laboratory, we constructed both a commensal community and an obligate mutualism using the previously noninteracting bacteria
    MeSH term(s) Anaerobiosis ; Coculture Techniques ; Geobacter/physiology ; Microbial Interactions ; Shewanella/physiology ; Symbiosis ; Synthetic Biology
    Language English
    Publishing date 2021-05-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 223011-2
    ISSN 1098-5336 ; 0099-2240
    ISSN (online) 1098-5336
    ISSN 0099-2240
    DOI 10.1128/AEM.02852-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 201: Show issues Location:
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  10. Article ; Online: Evidence for Horizontal and Vertical Transmission of Mtr-Mediated Extracellular Electron Transfer among the

    Baker, Isabel R / Conley, Bridget E / Gralnick, Jeffrey A / Girguis, Peter R

    mBio

    2022  Volume 13, Issue 1, Page(s) e0290421

    Abstract: Some bacteria and archaea have evolved the means to use extracellular electron donors and acceptors for energy metabolism, a phenomenon broadly known as extracellular electron transfer (EET). One such EET mechanism is the transmembrane electron conduit ... ...

    Abstract Some bacteria and archaea have evolved the means to use extracellular electron donors and acceptors for energy metabolism, a phenomenon broadly known as extracellular electron transfer (EET). One such EET mechanism is the transmembrane electron conduit MtrCAB, which has been shown to transfer electrons derived from metabolic substrates to electron acceptors, like Fe(III) and Mn(IV) oxides, outside the cell. Although most studies of MtrCAB-mediated EET have been conducted in Shewanella oneidensis MR-1, recent investigations in
    MeSH term(s) Electrons ; Ferric Compounds/metabolism ; Phylogeny ; Electron Transport ; Oxidation-Reduction ; Bacteria/metabolism ; Archaea/metabolism ; Shewanella/genetics
    Chemical Substances Ferric Compounds
    Language English
    Publishing date 2022-02-01
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2557172-2
    ISSN 2150-7511 ; 2161-2129
    ISSN (online) 2150-7511
    ISSN 2161-2129
    DOI 10.1128/mbio.02904-21
    Database MEDical Literature Analysis and Retrieval System OnLINE

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