Abstract
Interactions between plants and soil microbes are important for plant growth and resistance. Through plant-soil-feedbacks, growth of a plant is influenced by the previous plant that was growing in the same soil. We performed a plant-soil feedback study with 37 grass, forb and legume species, to condition the soil and then tested the effects of plant-induced changes in soil microbiomes on the growth of the commercially important cut-flower Chrysanthemum in presence and absence of a pathogen. We analysed the fungal and bacterial communities in these soils using next-generation sequencing and examined their relationship with plant growth in inoculated soils with or without the root pathogen, Pythium ultimum. We show that a large part of the soil microbiome is plant species-specific while a smaller part is conserved at the plant family level. We further identified clusters of plant species creating plant growth promoting microbiomes that suppress concomitantly plant pathogens. Especially soil inocula with higher relative abundances of arbuscular mycorrhizal fungi caused positive effects on the Chrysanthemum growth when exposed to the pathogen. We conclude that plants differ greatly in how they influence the soil microbiome and that plant growth and protection against pathogens is associated with a complex soil microbial community.
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Claims 4
Claim · model-written summary
A large part of the soil microbiome was specific to the plant species that conditioned the soil, while a smaller part was conserved at the plant family level.
Verbatim
t0“Structure and ecological function of the soil microbiome affecting plant–soil feedbacks in the presence of a soil‐borne pathogen”
e0“We show that a large part of the soil microbiome is plant species-specific while a smaller part is conserved at the plant family level”
Claim · model-written summary
Clusters of plant species were identified that create plant growth promoting soil microbiomes which at the same time suppress plant pathogens.
Verbatim
e0“We further identified clusters of plant species creating plant growth promoting microbiomes that suppress concomitantly plant pathogens”
Claim · model-written summary
Soil inocula with higher relative abundances of arbuscular mycorrhizal fungi had positive effects on Chrysanthemum growth when the plants were exposed to the pathogen.
- Taxon
- Chrysanthemum
.jpeg?width=60)
Chrysanthemume0 - Treatment
- soil inocula with higher relative abundances of arbuscular mycorrhizal fungie0
- Interactor
- arbuscular mycorrhizal fungie0symbiont
- Outcome
- Chrysanthemum growthe0
- Direction
- positive effectse0
- Qualifier
- when exposed to the pathogene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Especially soil inocula with higher relative abundances of arbuscular mycorrhizal fungi caused positive effects on the Chrysanthemum growth when exposed to the pathogen”
Claim · model-written summary
The authors conclude that plant growth and protection against pathogens is associated with a complex soil microbial community.
- Taxon
- plantsViridiplantaee0
- Interactor
- complex soil microbial communitye0other
- Outcome
- plant growth and protection against pathogense0
Not reportedDirection
Verbatim
e0“We conclude that plants differ greatly in how they influence the soil microbiome and that plant growth and protection against pathogens is associated with a complex soil microbial community”
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