Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Microbe-mediated mn oxidation—a proposed model of mineral formation
Department of Geological Sciences, Stockholm University, Stockholm, Sweden.
Department of Biology and Environmental Sciences, Linneaus University, Kalmar, Sweden.
Microbiology Group, Department of Biology, Lund University, Lund, Sweden.
Man-Technology-Environment Research Centre (MTM), Örebro University, Örebro, Sweden.
Show others and affiliations
2021 (English)In: Minerals, E-ISSN 2075-163X, Vol. 11, no 10, article id 1146Article in journal (Refereed) Published
Abstract [en]

Manganese oxides occur in a wide range of environmental settings either as coatings on rocks, sediment, and soil particles, or as discrete grains. Although the production of biologically mediated Mn oxides is well established, relatively little is known about microbial-specific strategies for utilizing Mn in the environment and how these affect the morphology, structure, and chemistry of associated mineralizations. Defining such strategies and characterizing the associated mineral properties would contribute to a better understanding of their impact on the local environment and possibly facilitate evaluation of biogenicity in recent and past Mn accumulations. Here, we supple-ment field data from a Mn rock wall deposit in the Ytterby mine, Sweden, with data retrieved from culturing Mn oxidizers isolated from this site. Microscopic and spectroscopic techniques are used to characterize field site products and Mn precipitates generated by four isolated bacteria (Hy-drogenophaga sp., Pedobacter sp., Rhizobium sp., and Nevskia sp.) and one fungal-bacterial co-culture (Cladosporium sp.—Hydrogenophaga sp. Rhizobium sp.—Nevskia sp.). Two of the isolates (Pedobacter sp. and Nevskia sp.) are previously unknown Mn oxidizers. At the field site, the onset of Mn oxide mineralization typically occurs in areas associated with globular wad-like particles and microbial traces. The particles serve as building blocks in the majority of the microstructures, either forming the base for further growth into laminated dendrites-botryoids or added as components to an exist-ing structure. The most common nanoscale structures are networks of Mn oxide sheets structurally related to birnessite. The sheets are typically constructed of very few layers and elongated along the octahedral chains. In places, the sheets bend and curl under to give a scroll-like appearance. Culturing experiments show that growth conditions (biofilm or planktonic) affect the ability to oxidize Mn and that taxonomic affiliation influences crystallite size, structure, and average oxidation state as well as the onset location of Mn precipitation.

Place, publisher, year, edition, pages
MDPI, 2021. Vol. 11, no 10, article id 1146
Keywords [en]
Biofilm, Birnessite, Cladosporium, Hydrogenophaga, Mn mineralization, Mn oxidizers, Nevskia, Pedobacter, Rhizobium, Ytterby mine
National Category
Microbiology Geochemistry
Identifiers
URN: urn:nbn:se:umu:diva-188870DOI: 10.3390/min11101146ISI: 000715479000001Scopus ID: 2-s2.0-85117167021OAI: oai:DiVA.org:umu-188870DiVA, id: diva2:1607646
Funder
Swedish Research Council, 2018-07152Swedish Research Council, 2020-05071Swedish Research Council, 2019-00217Swedish Research Council, 2018-04167Vinnova, 2018-04969Swedish Research Council Formas, 2019-02496Available from: 2021-11-01 Created: 2021-11-01 Last updated: 2024-01-17Bibliographically approved

Open Access in DiVA

fulltext(6871 kB)111 downloads
File information
File name FULLTEXT01.pdfFile size 6871 kBChecksum SHA-512
6861f96b01fafe85238cffe039f5e7d214ee9e5291e615f97e97f2da722693e7dcce54bc55c264262eceedc2f53d804952c63bdf36addf829bf5a95c693574d1
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Henriksson, Sara

Search in DiVA

By author/editor
Henriksson, Sara
By organisation
Department of Chemistry
In the same journal
Minerals
MicrobiologyGeochemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 111 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 171 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf