Abstract
Abstract Fungicides reduce fungal pathogen populations and are essential to food security. Understanding the impacts of fungicides on crop microbiomes is vital to minimizing unintended consequences while maintaining their use for plant protection. However, fungicide disturbance of plant microbiomes has received limited attention, and has not been examined in different agricultural management systems. We used amplicon sequencing of fungi and prokaryotes in maize and soybean microbiomes before and after foliar fungicide application in leaves and roots from plots under long-term no-till and conventional tillage management. We examined fungicide disturbance and resilience, which revealed consistent non-target effects and greater resiliency under no-till management. Fungicides lowered pathogen abundance in maize and soybean and decreased the abundance of Tremellomycetes yeasts, especially Bulleribasidiaceae, including core microbiome members. Fungicide application reduced network complexity in the soybean phyllosphere, which revealed altered co-occurrence patterns between yeast species of Bulleribasidiaceae, and Sphingomonas and Hymenobacter in fungicide treated plots. Results indicate that foliar fungicides lower pathogen and non-target fungal abundance and may impact prokaryotes indirectly. Treatment effects were confined to the phyllosphere and did not impact belowground microbial communities. Overall, these results demonstrate the resilience of no-till management to fungicide disturbance, a potential novel ecosystem service provided by no-till agriculture.
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Claims 7
Claim · model-written summary
Foliar fungicide application lowered pathogen abundance in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicides lowered pathogen abundance in maize and soybean”
Claim · model-written summary
Foliar fungicide application lowered pathogen abundance in soybean.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Fungicidese0
- Outcome
- pathogen abundancee0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicides lowered pathogen abundance in maize and soybean”
Claim · model-written summary
Fungicides decreased the abundance of Tremellomycetes yeasts, especially Bulleribasidiaceae, including core microbiome members, in maize and soybean.
- Taxon
- maize and soybeanGlycine max
Zea mayse0 - Treatment
- Fungicidese0
- Interactor
- Tremellomycetes yeastse0other
- Outcome
- abundance of Tremellomycetes yeastse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicides lowered pathogen abundance in maize and soybean and decreased the abundance of Tremellomycetes yeasts, especially Bulleribasidiaceae, including core microbiome members”
Claim · model-written summary
Fungicide application reduced network complexity in the soybean phyllosphere.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- phyllospheree0
- Treatment
- Fungicide applicatione0
- Outcome
- network complexitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide application reduced network complexity in the soybean phyllosphere”
Claim · model-written summary
Fungicide application altered co-occurrence patterns between yeast species of Bulleribasidiaceae and Sphingomonas and Hymenobacter in the soybean phyllosphere.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- phyllospheree0
- Treatment
- Fungicide applicatione0
- Outcome
- co-occurrence patternse0
- Direction
- alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide application reduced network complexity in the soybean phyllosphere, which revealed altered co-occurrence patterns between yeast species of Bulleribasidiaceae, and Sphingomonas and Hymenobacter in fungicide treated plots”
Claim · model-written summary
Fungicide treatment effects were confined to the phyllosphere and did not affect belowground microbial communities.
Not reportedTaxon
Verbatim
e0“Treatment effects were confined to the phyllosphere and did not impact belowground microbial communities”
Claim · model-written summary
Microbiomes showed greater resiliency to fungicide disturbance under no-till management.
Not reportedTaxon
Verbatim
e0“consistent non-target effects and greater resiliency under no-till management”
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