direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Page Content

List of Publications of the Chair

Isolation of Sphaerotilus–Leptothrix strains from iron bacteria communities in Tierra del Fuego wetlands
Citation key Schmidt 2014
Author Schmidt, B. and Sánchez, L. A. and Fretschner, T. and Kreps, G. and Ferrero, M. A. and Siñeriz, F. and Szewzyk, U.
Pages 454–466
Year 2014
DOI http://dx.doi.org/10.1111/1574-6941.12406
Journal Microbiology Ecology
Abstract Sheath-forming iron- and manganese-depositing bacteria belonging to the Sphaerotilus–Leptothrix group (SLG) are widespread in natural and artificial water systems. Known requirements for their growth include the presence of organic substrates and molecular oxygen. High concentrations of reduced iron or manganese, although not necessary for most species, make their growth a noticeable phenomenon. Such microbial communities have been studied mostly in the Northern Hemisphere. Here, we present descriptions of diverse ochre-depositing microbial communities in Tierra del Fuego, Argentina, using a combined approach of microscopical examination, clone library construction and cultivation focused on SLG bacteria. To date, only few SLG type strains are available. The present work increases the number and diversity of cultivated SLG bacteria by obtaining isolates from biofilms and sediment samples of wetlands in Tierra del Fuego. Thirty isolates were selected based on morphological features such as sheath formation and iron/manganese deposition. Five operational taxonomic units (OTUs) were deduced. Sequencing of 16S rRNA genes showed that one OTU is identical to the Leptothrix mobilis Feox-1T-sequence while the four remaining OTUs show similarity values related to previously described type strains. Similarity values ranged from 96.5% to 98.8%, indicating possible new species and subspecies
Download Bibtex entry

Zusatzinformationen / Extras

Quick Access:

Schnellnavigation zur Seite über Nummerneingabe

Auxiliary Functions

Head of Chair

Prof. Dr. rer. nat. Ulrich Szewzyk
BH 6-1
BH-N 604
Tel +49 30 314 73 461


Bärbel Minx
BH 6-1
BH-N 603
Tel +49 30 314 73 460

Consultation hours:
Mon - Fri

Adress Chair of Environmental Microbiology

Environmental Microbiology
of Environmental Technology
Faculty of Process Sciences
BH 6-1
Ernst-Reuter-Platz 1
10587 Berlin
Tel +49 30 314 73 460
Fax +49 30 314 73 673