Diversity and geochemical community assembly processes of the living rare biosphere in a sand-and-gravel aquifer ecosystem in the Midwestern United States
| Autor: | Wen Tso Liu, Keith C. Hackley, Robert A. Sanford, Samuel V. Panno, Yuji Sekiguchi, Yoichi Kamagata, Kyosuke Yamamoto, Walton R. Kelly, Hideyuki Tamaki |
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| Rok vydání: | 2019 |
| Předmět: |
Water microbiology
0301 basic medicine education.field_of_study geography Multidisciplinary geography.geographical_feature_category Rare biosphere Ecology lcsh:R 030106 microbiology Rare species Population Community structure lcsh:Medicine Aquifer Article Microbial ecology 03 medical and health sciences 030104 developmental biology Microbial population biology lcsh:Q Ecosystem lcsh:Science education Groundwater |
| Zdroj: | Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-11 (2019) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-019-49996-z |
| Popis: | Natural microbial communities consist of a limited number of abundant species and an extraordinarily diverse population of rare species referred to as the rare biosphere. Recent studies have revealed that the rare biosphere is not merely an inactive dormant population but may play substantial functional roles in the ecosystem. However, structure, activity and community assembly processes of the rare biosphere are poorly understood. In this study, we evaluated the present and living microbial community structures including rare populations in an aquifer ecosystem, the Mahomet Aquifer, USA, by both 16S rDNA and rRNA amplicon deep sequencing. The 13 groundwater samples formed three distinct groups based on the “entire” community structure, and the same grouping was obtained when focusing on the “rare” subcommunities (1.0%) gave a different grouping. In the correlation analyses, the observed grouping pattern is associated with several geochemical factors, and structures of not only the entire community but also the rare subcommunity are correlated with geochemical profiles in the aquifer ecosystem. Our findings first indicate that the living rare biosphere in the aquifer system has the metabolic potential to adapt to local geochemical factors which dictate the community assembly processes. |
| Databáze: | OpenAIRE |
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