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Bacterial community composition and diversity of five different permafrost-affected soils of Northeast Greenland.
- Source :
-
FEMS microbiology ecology [FEMS Microbiol Ecol] 2014 Aug; Vol. 89 (2), pp. 426-41. Date of Electronic Publication: 2014 Jun 09. - Publication Year :
- 2014
-
Abstract
- Greenland is one of the regions of interest with respect to climate change and global warming in the Northern Hemisphere. Little is known about the structure and diversity of the terrestrial bacterial communities in ice-free areas in northern Greenland. These soils are generally poorly developed and usually carbon- and nitrogen-limited. Our goal was to provide the first insights into the soil bacterial communities from five different sites in Northeast Greenland using culture-independent and culture-dependent methods. The comparison of environmental and biological data showed that the soil bacterial communities are diverse and significantly pH-dependent. The most frequently detected OTUs belonged to the phyla Acidobacteria, Bacteroidetes and (Alpha-, Beta-, Delta-) Proteobacteria. Low pH together with higher nitrogen and carbon concentrations seemed to support the occurrence of (Alpha-, Beta-, Delta-) Proteobacteria (at the expense of Acidobacteria), whereas Bacteroidetes were predominant at higher values of soil pH. Our study indicates that pH is the main factor for shaping bacterial community, but carbon and nitrogen concentrations as well may become important, especially for selecting oligotrophic microorganisms.<br /> (© 2014 Federation of European Microbiological Societies. Published by John Wiley & Sons Ltd. All rights reserved.)
- Subjects :
- Acidobacteria growth & development
Bacteroidetes growth & development
Biodiversity
Carbon chemistry
Greenland
Heterotrophic Processes
Hydrogen-Ion Concentration
Ice
Molecular Sequence Data
Molecular Typing
Nitrogen chemistry
Phylogeny
Polymorphism, Restriction Fragment Length
Proteobacteria growth & development
RNA, Ribosomal, 16S genetics
Soil chemistry
Acidobacteria genetics
Bacteroidetes genetics
Proteobacteria genetics
Soil Microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1574-6941
- Volume :
- 89
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- FEMS microbiology ecology
- Publication Type :
- Academic Journal
- Accession number :
- 24819653
- Full Text :
- https://doi.org/10.1111/1574-6941.12352