Root traits and belowground herbivores relate to plant-soil feedback variation among congeners

TY - JOUR

T1 - Root traits and belowground herbivores relate to plant-soil feedback variation among congeners

AU - Wilschut, R.A.

AU - van der Putten, W.H.

AU - Garbeva, P.V.

AU - Harkes, Paula

AU - Konings, Wouter

AU - Kulkarni, P.

AU - Martens, H.J.

AU - Geisen, S.

N1 - 6680, TE; Data Archiving: all data associated with article: The data that support the findings of this study are available from the corresponding author upon request. Newly sequenced rbcl gene information is available at NCBI under the accession numbers MK542498-MK542505. rDNA sequence data of 16S and 18S rRNA gene reads is uploaded to https://www.ebi.ac.uk/ena/data/view/PRJEB29769. Source data for Figs. 2, 3, 4 and 5 are provided with the paper

PY - 2019

Y1 - 2019

N2 - Plant–soil feedbacks contribute to vegetation dynamics by species-specific interactions between plants and soil biota. Variation in plant–soil feedbacks can be predicted by root traits, successional position, and plant nativeness. However, it is unknown whether closely related plant species develop more similar plant–soil feedbacks than more distantly related species. Where previous comparisons included plant species from distant phylogenetic positions, we studied plant–soil feedbacks of congeneric species. Using eight intra-continentally range-expanding and native Geranium species, we tested relations between phylogenetic distances, chemical and structural root traits, root microbiomes, and plant–soil feedbacks. We show that root chemistry and specific root length better predict bacterial and fungal community composition than phylogenetic distance. Negative plant–soil feedback strength correlates with root-feeding nematode numbers, whereas microbiome dissimilarity, nativeness, or phylogeny does not predict plant–soil feedbacks. We conclude that root microbiome variation among congeners is best explained by root traits, and that root-feeding nematode abundances predict plant–soil feedbacks.

AB - Plant–soil feedbacks contribute to vegetation dynamics by species-specific interactions between plants and soil biota. Variation in plant–soil feedbacks can be predicted by root traits, successional position, and plant nativeness. However, it is unknown whether closely related plant species develop more similar plant–soil feedbacks than more distantly related species. Where previous comparisons included plant species from distant phylogenetic positions, we studied plant–soil feedbacks of congeneric species. Using eight intra-continentally range-expanding and native Geranium species, we tested relations between phylogenetic distances, chemical and structural root traits, root microbiomes, and plant–soil feedbacks. We show that root chemistry and specific root length better predict bacterial and fungal community composition than phylogenetic distance. Negative plant–soil feedback strength correlates with root-feeding nematode numbers, whereas microbiome dissimilarity, nativeness, or phylogeny does not predict plant–soil feedbacks. We conclude that root microbiome variation among congeners is best explained by root traits, and that root-feeding nematode abundances predict plant–soil feedbacks.

KW - national

U2 - 10.1038/s41467-019-09615-x

DO - 10.1038/s41467-019-09615-x

M3 - Article

SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

M1 - 1564(2019)

ER -