Global diversity and distribution of nitrogen-fixing bacteria in the soil

被引:21
|
作者
Sepp, Siim-Kaarel [1 ]
Vasar, Martti [1 ]
Davison, John [1 ]
Oja, Jane [1 ]
Anslan, Sten [1 ]
Al-Quraishy, Saleh [2 ]
Bahram, Mohammad [3 ]
Bueno, C. Guillermo [1 ]
Cantero, Juan Jose [4 ,5 ]
Fabiano, Ezequiel Chimbioputo [6 ]
Decocq, Guillaume [7 ]
Drenkhan, Rein [8 ]
Fraser, Lauchlan [9 ]
Garibay Oriel, Roberto [10 ]
Hiiesalu, Inga [1 ]
Koorem, Kadri [1 ]
Koljalg, Urmas [1 ]
Moora, Mari [1 ]
Mucina, Ladislav [11 ,12 ]
opik, Maarja [1 ]
Polme, Sergei [11 ,13 ]
Partel, Meelis [1 ]
Phosri, Cherdchai [14 ]
Semchenko, Marina [1 ]
Vahter, Tanel [1 ]
Vasco Palacios, Aida M. M. [15 ]
Tedersoo, Leho [2 ,11 ]
Zobel, Martin [2 ,16 ]
机构
[1] Univ Tartu, Inst Ecol & Earth Sci, Taru, Estonia
[2] King Saud Univ, Coll Sci, Zool Dept, Riyadh, Saudi Arabia
[3] Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden
[4] Univ Nacl Cordoba, Consejo Nacl Invest Cient & Tecn CONICET, Inst Multidisciplinario Biol Vegetal, Cordoba, Argentina
[5] Univ Nacl Rio Cuarto, Fac Agron & Vet, Dept Biol Agr, Cordoba, Argentina
[6] Univ Namibia, Dept Wildlife Management & Ecotourism, Katima Mulilo, Namibia
[7] Jules Verne Univ Picardie, Ecol & Dynam Syst Anthropises EDYSAN, UMR CNRS 7058, Amiens, France
[8] Estonian Univ Life Sci, Inst Forestry & Engn, Tartu, Estonia
[9] Thompson Rivers Univ, Dept Nat Resource Sci, Kamloops, BC, Canada
[10] Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, Mexico
[11] Murdoch Univ, Harry Butler Inst, Iluka Chair Vegetat Sci & Biogeog, Perth, Australia
[12] Stellenbosch Univ, Dept Geog & Environm Studies, Stellenbosch, South Africa
[13] Univ Tartu, Ctr Mycol & Microbiol, Tartu, Estonia
[14] Nakhon Phanom Univ, Dept Biol, Nakhon Phanom, Thailand
[15] Univ Antioquia UdeA, Escuela Microbiol, Grp Microbiol Ambiental & Grp BioMicro, Medellin, Colombia
[16] Univ Tartu, Inst Ecol & Earth Sci, Dept Bot, Tartu, Estonia
来源
FRONTIERS IN PLANT SCIENCE | 2023年 / 14卷
关键词
16S SSU; bacterial diversity; biological N fixation; N-fixing bacterial community; biotic interactions; nifH gene; COMMUNITY STRUCTURE; FIXATION; ASSOCIATIONS; ABUNDANCE; DATABASE; PLANTS; LIFE;
D O I
10.3389/fpls.2023.1100235
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
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.
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页数:9
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