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Application of the Dynamic Cultivation System for Microorganisms – a new way to culture the unculturables
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Microbiology and Infectious Medicine, Clinical Bacteriology. National Veterinary Institute of Sweden, Swedish Forum for Biopreparedness Diagnostics.
Karlsruhe Institute of Technology.
Karlsruhe Institute of Technology.
Karlsruhe Institute of Technology.
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2014 (English)In: Clays and clay minerals, ISSN 0009-8604, E-ISSN 1552-8367, Vol. 62, no 3-4, 203-210 p.Article in journal (Refereed) Published
Abstract [en]

To date, ~1% of all bacteria that occur in environmental ecosystems such as soil, sedimentary rocks, and groundwater have been described. Comprehensive explanation of ecological interactions on a microscale level is thus almost impossible. The Dynamic Cultivation System (DCS) was developed in order to detect more microbial taxa than with common cultivation approaches, as well as previously undescribed bacterial species. The DCS is a quick and easy in situ method for the cultivation of numerous bacterial taxa in support of the description of microbial colonized ecosystems. To investigate the bacterial populations within a clay-maturation process after mining the raw material, the DCS was used to increase the microbial biomass for further molecular analysis. Two different methods were applied to extract the bacteria from the DCS and these were compared in terms of efficiency at detection of large numbers of different taxa and in terms of applicability to the detection of previously undescribed species in raw clays. A collection of different undescribed species was detected with sequencing. While direct picking of bacterial colonies leads to the detection of different genera, species mainly of the genus Arthobacter were proved in the phosphate-buffered saline-suspended biomass. Thus, a combination of the approaches mentioned above is recommended to increase the number of detectable species. The DCS will help to describe better the microbial content of ecosystems, especially soils that contain charged particles.

Place, publisher, year, edition, pages
2014. Vol. 62, no 3-4, 203-210 p.
National Category
Microbiology
Research subject
Biology with specialization in Microbiology; Biology with specialization in Population Biology; Microbiology; Earth Science with specialization in Environmental Analysis
Identifiers
URN: urn:nbn:se:uu:diva-242234DOI: 10.1346/CCMN.2014.0620304ISI: 000346817200004OAI: oai:DiVA.org:uu-242234DiVA: diva2:782887
Available from: 2015-01-22 Created: 2015-01-22 Last updated: 2017-12-05Bibliographically approved

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Kaden, Rene

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