Frontiers in Plant Science (Jan 2023)
Global diversity and distribution of nitrogen-fixing bacteria in the soil
- Siim-Kaarel Sepp,
- Martti Vasar,
- John Davison,
- Jane Oja,
- Sten Anslan,
- Saleh Al-Quraishy,
- Mohammad Bahram,
- C. Guillermo Bueno,
- Juan José Cantero,
- Juan José Cantero,
- Ezequiel Chimbioputo Fabiano,
- Guillaume Decocq,
- Rein Drenkhan,
- Lauchlan Fraser,
- Roberto Garibay Oriel,
- Inga Hiiesalu,
- Kadri Koorem,
- Urmas Kõljalg,
- Mari Moora,
- Ladislav Mucina,
- Ladislav Mucina,
- Maarja Öpik,
- Sergei Põlme,
- Meelis Pärtel,
- Cherdchai Phosri,
- Marina Semchenko,
- Tanel Vahter,
- Aida M. Vasco Palacios,
- Leho Tedersoo,
- Leho Tedersoo,
- Martin Zobel,
- Martin Zobel
Affiliations
- Siim-Kaarel Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Martti Vasar
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Jane Oja
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Sten Anslan
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Mohammad Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- C. Guillermo Bueno
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Juan José Cantero
- Universidad Nacional de Córdoba, Instituto Multidisciplinario de Biología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
- Juan José Cantero
- Universidad Nacional de Río Cuarto, Departamento de Biología Agrícola, Facultad de Agronomía y Veterinaria, Córdoba, Argentina
- Ezequiel Chimbioputo Fabiano
- Department of Wildlife Management and Ecotourism, University of Namibia, Katima Mulilo, Namibia
- Guillaume Decocq
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR CNRS 7058), Jules Verne University of Picardie, Amiens, France
- Rein Drenkhan
- Institute of Forestry and Engineering, Estonian University of Life Sciences, Tartu, Estonia
- Lauchlan Fraser
- Department of Natural Resource Sciences, Thompson Rivers University, Kamloops, BC, Canada
- Roberto Garibay Oriel
- 0Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
- Inga Hiiesalu
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Kadri Koorem
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Urmas Kõljalg
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Ladislav Mucina
- 1Iluka Chair in Vegetation Science and Biogeography, Harry Butler Institute, Murdoch University, Perth, Australia
- Ladislav Mucina
- 2Department of Geography & Environmental Studies, Stellenbosch University, Stellenbosch, South Africa
- Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Sergei Põlme
- 3Center of Mycology and Microbiology, University of Tartu, Tartu, Estonia
- Meelis Pärtel
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Cherdchai Phosri
- 4Department of Biology, Nakhon Phanom University, Nakhon Phanom, Thailand
- Marina Semchenko
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Tanel Vahter
- Institute of Ecology and Earth Sciences, University of Tartu, Taru, Estonia
- Aida M. Vasco Palacios
- 5Grupo de Microbiología Ambiental y Grupo BioMicro, Escuela de Microbiología, Universidad de Antioquia UdeA, Medellín, Colombia
- Leho Tedersoo
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Leho Tedersoo
- 3Center of Mycology and Microbiology, University of Tartu, Tartu, Estonia
- Martin Zobel
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Martin Zobel
- 6Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
- DOI
- https://doi.org/10.3389/fpls.2023.1100235
- Journal volume & issue
-
Vol. 14
Abstract
Our knowledge of microbial biogeography has advanced in recent years, yet we lack knowledge of the global diversity of some important functional groups. Here, we used environmental DNA from 327 globally collected soil samples to investigate the biodiversity patterns of nitrogen-fixing bacteria by focusing on the nifH gene but also amplifying the general prokaryotic 16S SSU region. Globally, N-fixing prokaryotic communities are driven mainly by climatic conditions, with most groups being positively correlated with stable hot or seasonally humid climates. Among soil parameters, pH, but also soil N content were most often shown to correlate with the diversity of N-fixer groups. However, specific groups of N-fixing prokaryotes show contrasting responses to the same variables, notably in Cyanobacteria that were negatively correlated with stable hot climates, and showed a U-shaped correlation with soil pH, contrary to other N-fixers. Also, the non-N-fixing prokaryotic community composition was differentially correlated with the diversity and abundance of N-fixer groups, showing the often-neglected impact of biotic interactions among bacteria.
Keywords
- 16S SSU
- bacterial diversity
- biological N fixation
- N-fixing bacterial community
- biotic interactions
- nifH gene
