Biogeographical survey of soil microbiomes across sub-Saharan Africa: structure, drivers, and predicted climate-driven changes.

Autor:	Cowan DA; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa. don.cowan@up.ac.za., Lebre PH; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa. pedro.bixiraonetomarinholebre@up.ac.za., Amon C; Institut National Polytechnique Houphouet-Boigny, Cote d'Ivoire, Yamoussoukro, South Africa., Becker RW; Biodiversity Research Centre, Department of Agriculture and Natural Resources Sciences, Namibia University of Science and Technology, Windhoek, Namibia., Boga HI; Taita Taveta University, Voi, Kenya., Boulangé A; Centro de Biotecnologia, Universidade Eduardo Mondlane, Maputo, Mozambique.; UMR InterTryp, CIRAD-IRD, 34398, Montpellier, France., Chiyaka TL; Department of Biotechnology and Biochemistry, University of Zimbabwe, Harare, Zimbabwe., Coetzee T; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., de Jager PC; Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa., Dikinya O; Department of Environmental Science, University of Botswana, Gaborone, Botswana., Eckardt F; Department of Geography, University of Cape Town, Cape Town, South Africa., Greve M; Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa., Harris MA; Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa., Hopkins DW; Scotland's Rural College, Edinburgh, EH9 3JG, UK., Houngnandan HB; Université Nationale d'Agriculture, Porto-Novo, Benin (Laboratoire de Microbiologie Des Sols Et d'Ecologie Microbienne), Porto-Novo, Benin., Houngnandan P; Université Nationale d'Agriculture, Porto-Novo, Benin (Laboratoire de Microbiologie Des Sols Et d'Ecologie Microbienne), Porto-Novo, Benin., Jordaan K; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.; Departamento de Genética Molecular Y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile., Kaimoyo E; University of Zambia, Lusaka, Zambia., Kambura AK; Taita Taveta University, Voi, Kenya., Kamgan-Nkuekam G; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., Makhalanyane TP; Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., Maggs-Kölling G; Gobabeb-Namib Research Institute, Walvis Bay, Namibia., Marais E; Gobabeb-Namib Research Institute, Walvis Bay, Namibia., Mondlane H; Centro de Biotecnologia, Universidade Eduardo Mondlane, Maputo, Mozambique., Nghalipo E; Biodiversity Research Centre, Department of Agriculture and Natural Resources Sciences, Namibia University of Science and Technology, Windhoek, Namibia., Olivier BW; Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa., Ortiz M; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.; Department of Biological Sciences, Clemson University, Clemson, SC, USA., Pertierra LR; Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa., Ramond JB; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.; Departamento de Genética Molecular Y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile., Seely M; Gobabeb-Namib Research Institute, Walvis Bay, Namibia., Sithole-Niang I; Department of Biotechnology and Biochemistry, University of Zimbabwe, Harare, Zimbabwe., Valverde A; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., Varliero G; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., Vikram S; Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa., Wall DH; Department of Biology, Colorado State University, Fort Collins, USA., Zeze A; Institut National Polytechnique Houphouet-Boigny, Cote d'Ivoire, Yamoussoukro, South Africa.
Jazyk:	angličtina
Zdroj:	Microbiome [Microbiome] 2022 Aug 23; Vol. 10 (1), pp. 131. Date of Electronic Publication: 2022 Aug 23.
DOI:	10.1186/s40168-022-01297-w
Abstrakt:	Background: Top-soil microbiomes make a vital contribution to the Earth's ecology and harbor an extraordinarily high biodiversity. They are also key players in many ecosystem services, particularly in arid regions of the globe such as the African continent. While several recent studies have documented patterns in global soil microbial ecology, these are largely biased towards widely studied regions and rely on models to interpolate the microbial diversity of other regions where there is low data coverage. This is the case for sub-Saharan Africa, where the number of regional microbial studies is very low in comparison to other continents. Results: The aim of this study was to conduct an extensive biogeographical survey of sub-Saharan Africa's top-soil microbiomes, with a specific focus on investigating the environmental drivers of microbial ecology across the region. In this study, we sampled 810 sample sites across 9 sub-Saharan African countries and used taxonomic barcoding to profile the microbial ecology of these regions. Our results showed that the sub-Saharan nations included in the study harbor qualitatively distinguishable soil microbiomes. In addition, using soil chemistry and climatic data extracted from the same sites, we demonstrated that the top-soil microbiome is shaped by a broad range of environmental factors, most notably pH, precipitation, and temperature. Through the use of structural equation modeling, we also developed a model to predict how soil microbial biodiversity in sub-Saharan Africa might be affected by future climate change scenarios. This model predicted that the soil microbial biodiversity of countries such as Kenya will be negatively affected by increased temperatures and decreased precipitation, while the fungal biodiversity of Benin will benefit from the increase in annual precipitation. Conclusion: This study represents the most extensive biogeographical survey of sub-Saharan top-soil microbiomes to date. Importantly, this study has allowed us to identify countries in sub-Saharan Africa that might be particularly vulnerable to losses in soil microbial ecology and productivity due to climate change. Considering the reliance of many economies in the region on rain-fed agriculture, this study provides crucial information to support conservation efforts in the countries that will be most heavily impacted by climate change. Video Abstract. (© 2022. The Author(s).)
Databáze:	MEDLINE
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