Abstract
Abstract The soil borne pathogen Rhizoctonia solani AG8 causes Rhizoctonia bare patch disease, a major constraint on global wheat production, particularly in no- or minimal -till systems. Current control strategies such as crop rotation, chemical fungicides, and tillage provide only partial protection, while fungicides can accelerate resistance development and negatively impact crop, soil, and human health. Microbial biological control agents (BCAs) and synthetic communities (SynComs, combining two or more BCAs) represent a sustainable alternative for managing Rhizoctonia bare patch. However, inconsistent efficacy and limited compatibility with fungicides remain key challenges to adoption. Here, we demonstrated that individual BCAs and a SynCom (comprising Diaporthe sp. and Pseudomonas sp. KAR75) reduced disease incidence at the seedling stage by 51–71% compared with fungicide treatment. When combined with fungicide, disease incidence was further reduced by 65–100%. The BCA treatments also improved grain yield by 9–12% compared with fungicide treatment and by 11–15% compared to no-pathogen control, demonstrating their ability to promote wheat growth in the absence of disease. Grain yield increased most with the fungal-bacterial SynCom, particularly when applied together with fungicide. These results demonstrated that integrating BCAs with chemical fungicides has strong potential to improve control of soil-borne diseases in grain crops.
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Claims 6
Claim · model-written summary
Individual biological control agents reduced seedling disease incidence by 51–71% relative to fungicide treatment.
- Taxon
- Wheat
Triticum aestivumt0 - Organ / stage
- seedling stagee0
- Treatment
- individual BCAse0
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 51–71%e0
- Comparator
- fungicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“individual BCAs and a SynCom (comprising Diaporthe sp. and Pseudomonas sp. KAR75) reduced disease incidence at the seedling stage by 51–71% compared with fungicide treatment”
Claim · model-written summary
The Diaporthe and Pseudomonas synthetic community reduced seedling disease incidence by 51–71% relative to fungicide treatment.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- a SynCom (comprising Diaporthe sp. and Pseudomonas sp. KAR75)e0
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 51–71%e0
- Comparator
- fungicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“a SynCom (comprising Diaporthe sp. and Pseudomonas sp. KAR75) reduced disease incidence at the seedling stage by 51–71% compared with fungicide treatment”
Claim · model-written summary
Combining the biological control treatments with fungicide further reduced disease incidence by 65–100%.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- combined with fungicidee0
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 65–100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“When combined with fungicide, disease incidence was further reduced by 65–100%”
Claim · model-written summary
Biological control treatments improved wheat grain yield by 9–12% relative to fungicide treatment.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- BCA treatmentse0
- Outcome
- grain yielde0
- Direction
- improvede0
- Value
- 9–12%e0
- Comparator
- fungicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“The BCA treatments also improved grain yield by 9–12% compared with fungicide treatment”
Claim · model-written summary
Biological control treatments improved grain yield by 11–15% relative to the no-pathogen control.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- Wheatt0
- Value
- 11–15%e0
- Comparator
- no-pathogen controle0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“by 11–15% compared to no-pathogen control”
Claim · model-written summary
Grain yield increased most with the fungal-bacterial synthetic community, particularly with fungicide.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- fungal-bacterial SynCome0
- Outcome
- Grain yielde0
- Direction
- increased moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Grain yield increased most with the fungal-bacterial SynCom, particularly when applied together with fungicide”
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