TY - JOUR
T1 - It is elemental
T2 - soil nutrient stoichiometry drives bacterial diversity
AU - Delgado-Baquerizo, Manuel
AU - Reich, Peter B.
AU - Khachane, Amit N.
AU - Campbell, Colin D.
AU - Thomas, Nadine
AU - Freitag, Thomas E
AU - Abu Al-Soud, Waleed
AU - Sørensen, Søren Johannes
AU - Bardgett, Richard D
AU - Singh, Brajesh K.
N1 - © 2016 Society for Applied Microbiology and John Wiley & Sons Ltd.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - It is well established that resource quantity and elemental stoichiometry play major roles in shaping below and aboveground plant biodiversity, but their importance for shaping microbial diversity in soil remains unclear. Here, we used statistical modeling on a regional database covering 179 locations and six ecosystem types across Scotland to evaluate the roles of total carbon (C), nitrogen (N) and phosphorus (P) availabilities and ratios, together with land use, climate and biotic and abiotic factors, in determining regional scale patterns of soil bacterial diversity. We found that bacterial diversity and composition were primarily driven by variation in soil resource stoichiometry (total C:N:P ratios), itself linked to different land uses, and secondarily driven by other important biodiversity drivers such as climate, soil spatial heterogeneity, soil pH, root influence (plant-soil microbe interactions) and microbial biomass (soil microbe-microbe interactions). In aggregate, these findings provide evidence that nutrient stoichiometry is a strong predictor of bacterial diversity and composition at a regional scale.
AB - It is well established that resource quantity and elemental stoichiometry play major roles in shaping below and aboveground plant biodiversity, but their importance for shaping microbial diversity in soil remains unclear. Here, we used statistical modeling on a regional database covering 179 locations and six ecosystem types across Scotland to evaluate the roles of total carbon (C), nitrogen (N) and phosphorus (P) availabilities and ratios, together with land use, climate and biotic and abiotic factors, in determining regional scale patterns of soil bacterial diversity. We found that bacterial diversity and composition were primarily driven by variation in soil resource stoichiometry (total C:N:P ratios), itself linked to different land uses, and secondarily driven by other important biodiversity drivers such as climate, soil spatial heterogeneity, soil pH, root influence (plant-soil microbe interactions) and microbial biomass (soil microbe-microbe interactions). In aggregate, these findings provide evidence that nutrient stoichiometry is a strong predictor of bacterial diversity and composition at a regional scale.
U2 - 10.1111/1462-2920.13642
DO - 10.1111/1462-2920.13642
M3 - Journal article
C2 - 27943556
SN - 1462-2912
VL - 19
SP - 1176
EP - 1188
JO - Environmental Microbiology
JF - Environmental Microbiology
IS - 3
ER -
