Experimental Testing of Dispersal Limitation in Soil Bacterial Communities with a Propagule Addition Approach
| Autor: | Quan-Guo Zhang, Fen-Guo Zhang, Thomas Bell |
|---|---|
| Přispěvatelé: | Natural Environment Research Council (NERC) |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Microcosm China NICHES Steppe 030106 microbiology DIVERSITY Soil Science Environmental Sciences & Ecology Biology Microbiology 03 medical and health sciences SPECIES POOLS Microbial ecology Propagule Temperate climate Marine & Freshwater Biology MICROORGANISMS 0503 Soil Sciences Regional processes Ecology Evolution Behavior and Systematics Soil Microbiology geography Bacteriological Techniques geography.geographical_feature_category Science & Technology Ecology 0602 Ecology Bacteria Community assembly Soil bacteria TAXA Grassland Seed addition 030104 developmental biology Soil water DISTANCE PATTERNS Biological dispersal HISTORICAL CONTINGENCY Soil microbiology Life Sciences & Biomedicine STOCHASTIC-PROCESSES BIOGEOGRAPHY 0605 Microbiology Environmental Monitoring |
| Zdroj: | Microbial ecology. 77(4) |
| ISSN: | 1432-184X |
| Popis: | The role of dispersal in the assembly of microbial communities remains contentious. This study tested the importance of dispersal limitation for the structuring of local soil bacterial communities using an experimental approach of propagule addition. Microbes extracted from soil pooled from samples collected at 20 localities across ~ 400 km in a temperate steppe were added to microcosms of local soils at three sites; the microcosms were then incubated in situ for 3 months. We then assessed the composition and diversity of bacterial taxa in the soils using 16S rRNA gene amplicon sequencing. The addition of the regional microbial pool did not cause significant changes in the overall composition or diversity of the total bacterial community, although a very small number of individual taxa may have been affected by the addition treatment. Our results suggest a negligible role of dispersal limitation in structuring soil bacterial communities in our study area. |
| Databáze: | OpenAIRE |
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