Artículos de revistas
Temperature and pH define the realised niche space of arbuscular mycorrhizal fungi
Fecha
2021-03-04Registro en:
New Phytologist. Hoboken: Wiley, 14 p., 2021.
0028-646X
10.1111/nph.17240
WOS:000625157200001
Autor
Univ Tartu
Univ Manchester
Qatar Univ
Moscow Lomonsov State Univ
King Saud Univ
Russian Acad Sci
Swedish Univ Agr Sci
Univ Alberta
Univ Nacl Cordoba
Univ Nacl Rio Cuarto
Univ Penn
Univ Djibouti
Univ Aveiro
Thompson Rivers Univ
Jules Verne Univ Picardie
Univ Namibia
RAS
Univ Calif Riverside
Univ Western Ontario
UPR Forets & Societes
Univ Montpellier
INP HB
Beni Suef Univ
Czech Acad Sci
Charles Univ Prague
Estonian Univ Life Sci
Murdoch Univ
Stellenbosch Univ
Univ Rwanda
Univ Bern
Botswana Int Univ Sci & Technol
Nakhon Phanom Univ
Univ Palermo
Univ Bangui
Inst Amazon Invest Cient Sinchi
Universidade Estadual Paulista (Unesp)
Radboud Univ Nijmegen
Institución
Resumen
The arbuscular mycorrhizal (AM) fungi are a globally distributed group of soil organisms that play critical roles in ecosystem function. However, the ecological niches of individual AM fungal taxa are poorly understood. We collected > 300 soil samples from natural ecosystems worldwide and modelled the realised niches of AM fungal virtual taxa (VT; approximately species-level phylogroups). We found that environmental and spatial variables jointly explained VT distribution worldwide, with temperature and pH being the most important abiotic drivers, and spatial effects generally occurring at local to regional scales. While dispersal limitation could explain some variation in VT distribution, VT relative abundance was almost exclusively driven by environmental variables. Several environmental and spatial effects on VT distribution and relative abundance were correlated with phylogeny, indicating that closely related VT exhibit similar niche optima and widths. Major clades within the Glomeraceae exhibited distinct niche optima, Acaulosporaceae generally had niche optima in low pH and low temperature conditions, and Gigasporaceae generally had niche optima in high precipitation conditions. Identification of the realised niche space occupied by individual and phylogenetic groups of soil microbial taxa provides a basis for building detailed hypotheses about how soil communities respond to gradients and manipulation in ecosystems worldwide.