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Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling

Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling

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STRAUB, Kristina Lotte, Wilhelm A. SCHÖNHUBER, Berit E. E. BUCHHOLZ-CLEVEN, Bernhard SCHINK, 2004. Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling. In: Geomicrobiology Journal. 21(6), pp. 371-378. ISSN 0149-0451. eISSN 1521-0529. Available under: doi: 10.1080/01490450490485854

@article{Straub2004Diver-6819, title={Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling}, year={2004}, doi={10.1080/01490450490485854}, number={6}, volume={21}, issn={0149-0451}, journal={Geomicrobiology Journal}, pages={371--378}, author={Straub, Kristina Lotte and Schönhuber, Wilhelm A. and Buchholz-Cleven, Berit E. E. and Schink, Bernhard} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/6819"> <dcterms:bibliographicCitation>First publ. in: Geomicrobiology Journal 21 (2004), 6, pp. 371-378</dcterms:bibliographicCitation> <dc:contributor>Schink, Bernhard</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Straub, Kristina Lotte</dc:creator> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6819/1/diversity_of_ferrous_2004.pdf"/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:issued>2004</dcterms:issued> <dc:creator>Schönhuber, Wilhelm A.</dc:creator> <dc:format>application/pdf</dc:format> <dc:contributor>Schönhuber, Wilhelm A.</dc:contributor> <dcterms:abstract xml:lang="eng">In previous studies, three different strains (BrG1, BrG2, and BrG3) of ferrous iron-oxidizing, nitrate-reducing bacteria were obtained fromfreshwater sediments. All three strains were facultative anaerobes and utilized a variety of organic substrates and molecular hydrogen with nitrate as electron acceptor. In this study, analyses of 16S rDNA sequences showed that strain BrG1 was affiliated with the genus Acidovorax, strain BrG2 with the genus Aquabacterium, and strain BrG3 with the genus Thermomonas. Previously, bacteria similar to these three strains were detected with molecular techniques in MPN dilution series for ferrous iron-oxidizing, nitrate-reducing bacteria inoculated with different freshwater sediment samples. In the present study, further molecular analyses of theseMPNcultures indicated that the ability to oxidize ferrous iron with nitrate is widespread amongst the Proteobacteria and may also be found among the Gram-positive bacteria with high GC content of DNA. Nitrate-reducing bacteria oxidized ferrous iron to poorly crystallized ferrihydrite that was suitable as an electron acceptor for ferric iron-reducing bacteria. Biologically produced ferrihydrite and synthetically produced ferrihydrite were both well suited as electron acceptors inMPNdilution cultures. Repeated anaerobic cycling of iron was shown in a coculture of ferrous iron-oxidizing bacteria and the ferric iron-reducing bacterium Geobacter bremensis. The results indicate that iron can be cycled between its oxidation states +II and +III by microbial activities in anoxic sediments.</dcterms:abstract> <dc:rights>terms-of-use</dc:rights> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dcterms:title>Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling</dcterms:title> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:24Z</dcterms:available> <dc:language>eng</dc:language> <dc:contributor>Buchholz-Cleven, Berit E. E.</dc:contributor> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6819/1/diversity_of_ferrous_2004.pdf"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/6819"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:creator>Buchholz-Cleven, Berit E. E.</dc:creator> <dc:creator>Schink, Bernhard</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:24Z</dc:date> <dc:contributor>Straub, Kristina Lotte</dc:contributor> </rdf:Description> </rdf:RDF>

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