Reduction of alternative electron acceptors drives biofilm formation in Shewanella algae
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چکیده
منابع مشابه
Initial Phases of biofilm formation in Shewanella oneidensis MR-1.
Shewanella oneidensis MR-1 is a facultative Fe(III)- and Mn(IV)-reducing microorganism and serves as a model for studying microbially induced dissolution of Fe or Mn oxide minerals as well as biogeochemical cycles. In soil and sediment environments, S. oneidensis biofilms form on mineral surfaces and are critical for mediating the metabolic interaction between this microbe and insoluble metal o...
متن کاملDissimilatory reduction of extracellular electron acceptors in anaerobic respiration.
An extension of the respiratory chain to the cell surface is necessary to reduce extracellular electron acceptors like ferric iron or manganese oxides. In the past few years, more and more compounds were revealed to be reduced at the surface of the outer membrane of Gram-negative bacteria, and the list does not seem to have an end so far. Shewanella as well as Geobacter strains are model organi...
متن کاملAlternative electron acceptors: Proposed mechanism of paraquat mitochondrial toxicity.
Paraquat (PQ) is a relatively safe and effective herbicide used all over the world. PQ is very toxic to all living organisms; and many cases of acute poisoning and death have been reported over the past decade. The main suggested potential mechanism for PQ toxicity is the production of superoxide radicals from the metabolism of the PQ by microsomal enzyme systems, and by inducing mitochondrial ...
متن کاملChemotactic responses to metals and anaerobic electron acceptors in Shewanella oneidensis MR-1.
Although a previous study indicated that the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 lacks chemotactic responses to metals that can be used as anaerobic electron acceptors, new results show that this bacterium responds to both Mn(III) and Fe(III). Cells were also shown to respond to another unusual electron acceptor, the humic acid analog anthraquinone-2,6-disulfonate....
متن کاملEffects of electron acceptors and donors on transformation of tetrachloromethane by Shewanella putrefaciens MR-1.
Transformation of chlorinated aliphatic compounds was examined in Shewanella putrefaciens strain MR-1, an obligately respiring facultative anaerobe. Under anaerobic conditions, MR-1 has been shown to transform tetrachloromethane to trichloromethane (24%), CO2 (7%), cell-bound material (50%) and unidentified nonvolatile products (4%). The highest rate and extent of transformation were observed w...
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ژورنال
عنوان ژورنال: npj Biofilms and Microbiomes
سال: 2021
ISSN: 2055-5008
DOI: 10.1038/s41522-020-00177-1