bei Google ScholarTitelangaben
Musat, Niculina ; Werner, Ursula ; Kolb, Steffen ; Dodenhof, Tanja ; Knittel, Katrin ; van Beusekom, Justus E. E. ; de Beer, Dirk ; Dubilier, Nicole ; Amann, Rudolf:
Microbial community structure of sandy intertidal sediments in the North Sea, Sylt-Rømø Basin, Wadden Sea.
In: Systematic and Applied Microbiology.
Bd. 29
(2006)
Heft 4
.
- S. 333-348.
ISSN 0723-2020
DOI: https://doi.org/10.1016/j.syapm.2005.12.006
Abstract
Molecular biological methods were used to investigate the microbial diversity and community structure in intertidalsandy sediments near the island of Sylt (Wadden Sea) at a site which was characterized for transport andmineralization rates in a parallel study (D. de Beer, F. Wenzho¨ fer, T. Ferdelman, S.E. Boehme, M. Huettel, J.E.E. vanBeusekom, M.E. Bo¨ ttcher, N. Musat, N. Dubilier, Transport and mineralization rates in North Sea sandy intertidalsediments, Sylt-Romo Basin, Wadden Sea, Limnol. Oceanogr. 50 (2005) 113–127). Comparative 16S rRNA sequenceanalysis revealed a high bacterial diversity. Most sequences retrieved by PCR with a general bacterial primer set wereaffiliated with Bacteroidetes, Gammaproteobacteria, Deltaproteobacteria and the Pirellula cluster of Planctomycetales.Fluorescence in situ hybridization (FISH) and slot-blot hybridization with group-specific rRNA-targetedoligonucleotide probes were used to characterize the microbial community structure over depth (0–12 cm) andseasons (March, July, October). We found high abundances of bacteria with total cell numbers up to 3109 cells ml1and a clear seasonal variation, with higher values in July and October versus March. The microbial community wasdominated by members of the Planctomycetes, the Cytophaga/Flavobacterium group, Gammaproteobacteria, andbacteria of the Desulfosarcina/Desulfococcus group. The high abundance (1.5107–1.8108 cells ml1 accounting for3–19% of all cells) of presumably aerobic heterotrophic polymer-degrading planctomycetes is in line with the highpermeability, deep oxygen penetration, and the high rates of aerobic mineralization of algal biomass measured in thesandy sediments by de Beer et al. (2005). The high and stable abundance of members of the Desulfosarcina/Desulfococcus group, both over depth and season, suggests that these bacteria may play a more important role thanpreviously assumed based on low sulfate reduction rates in parallel cores (de Beer et al., 2005).
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER31215 |
| Institutionen der Universität: | Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Ökologische Mikrobiologie Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 29 Jul 2015 05:53 |
| Letzte Änderung: | 29 Jul 2015 05:53 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/17412 |