Experimental testing of hypotheses for temperature‐ and pH ‐based niche specialization of ammonia oxidizing archaea and bacteria
| Autor: | James I. Prosser, Cécile Gubry-Rangin, Heather Richmond, Cécile Thion, Graeme W. Nicol, Katerina Estera-Molina, Axel Aigle, Jennifer Pett-Ridge, Mary K. Firestone |
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| Přispěvatelé: | University of Aberdeen, University of California [Berkeley], University of California, Lawrence Livermore National Laboratory (LLNL), Ampère, Département Bioingénierie (BioIng), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Stable-isotope probing
Microbial metabolism Biology Microbiology Soil 03 medical and health sciences Ammonia Soil pH Ecosystem Soil Microbiology Ecology Evolution Behavior and Systematics 030304 developmental biology 2. Zero hunger 0303 health sciences Bacteria 030306 microbiology Ecology Microbiota Temperature Soil chemistry Hydrogen-Ion Concentration 15. Life on land Archaea Nitrification [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology 13. Climate action [SDE.BE]Environmental Sciences/Biodiversity and Ecology Microcosm Oxidation-Reduction Soil microbiology |
| Zdroj: | Environmental Microbiology Environmental Microbiology, Society for Applied Microbiology and Wiley-Blackwell, 2020, 22 (9), pp.4032-4045. ⟨10.1111/1462-2920.15192⟩ |
| ISSN: | 1462-2912 1462-2920 |
| Popis: | International audience; Investigation of niche specialization in microbial communities is important in assessing consequences of environmental change for ecosystem processes. Ammonia oxidizing bacteria (AOB) and archaea (AOA) present a convenient model for studying niche specialization. They coexist in most soils and effects of soil characteristics on their relative abundances have been studied extensively. This study integrated published information on the influence of temperature and pH on AOB and AOA into several hypotheses, generating predictions that were tested in soil microcosms. The influence of perturbations in temperature was determined in pH 4.5, 6 and 7.5 soils and perturbations in pH were investigated at 15°C, 25°C and 35°C. AO activities were determined by analysing changes in amoA gene and transcript abundances, stable isotope probing and nitrate production. Experimental data supported major predictions of the effects of temperature and pH, but with several significant discrepancies, some of which may have resulted from experimental limitations. The study also provided evidence for unpredicted activity of AOB in pH 4.5 soil. Other discrepancies highlighted important deficiencies in current knowledge, particularly lack of consideration of niche overlap and the need to consider combinations of factors when assessing the influence of environmental change on microbial communities and their activities. |
| Databáze: | OpenAIRE |
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