ArticleMicrobiome2024
Redundancy in microbiota-mediated suppression of the soybean cyst nematode.
Article in Microbiome, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Dynamic Assembly and Multifunctional Roles of Plant Endophytic Microbiomes.Microorganisms · 2026Review
- Siderophore-producing Bacillus and free-living nematodes are associated with soil suppressiveness to banana root-knot nematodes.Nature communications · 2026Article
- Molecular mimicry and trafficking of peptide effectors in sedentary nematodes: emerging drivers of feeding site formation and host signaling hijack.Crop health · 2026Review
- From green to red: metabolic reprogramming and bacterial community succession underpin cherry tomato fruit ripening and quality formation.Frontiers in plant science · 2026Article
- Cultivar-specific physiological and proteomic patterns underlying mango susceptibility to bacterial black spot disease.Frontiers in plant science · 2026Article
- Long-term continuous cropping reshapes soybean rhizosphere microbiome and metabolome to alleviate allelopathic stress and enhance disease suppression.Microbiome · 2025Article
- Soil microbial diversity: A key factor in pathogen suppression and inoculant performance.Geoderma · 2025Article
- Proteomics analysis revealed the activation and suppression of different host defense components challenged with mango leaf spot pathogen Alternaria alternata.BMC plant biology · 2025Article
- Growth promotion and stress tolerance of soybean plants driven by seed treatment with synthetic bacterial community of soybean-associated beneficial bacteria.Frontiers in plant science · 2025Article
- Structure and composition of arbuscular mycorrhizal fungal community associated with mango.Frontiers in plant science · 2025Article
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Authors and funding
13 authors.
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Abstract
backgroundSoybean cyst nematodes (SCN) as animal parasites of plants are not usually interested in killing the host but are rather focused on completing their life cycle to increase population, resulting in substantial yield losses. Remarkably, some agricultural soils after long-term crop monoculture show a significant decline in SCN densities and suppress disease in a sustainable and viable manner. However, relatively little is known about the microbes and mechanisms operating against SCN in such disease-suppressive soils.
resultsGreenhouse experiments showed that suppressive soils (S) collected from two provinces of China and transplantation soils (CS, created by mixing 10% S with 90% conducive soils) suppressed SCN. However, SCN suppressiveness was partially lost or completely abolished when S soils were treated with heat (80 °C) and formalin. Bacterial community analysis revealed that the specific suppression in S and CS was mainly associated with the bacterial phylum Bacteroidetes, specifically due to the enrichment of Chitinophaga spp. and Dyadobacter sp., in the cysts. SCN cysts colonized by Chitinophaga spp. showed dramatically reduced egg hatching, with unrecognizable internal body organization of juveniles inside the eggshell due to chitinase activity. Whereas, Dyadobacter sp. cells attached to the surface coat of J2s increased soybean resistance against SCN by triggering the expression of defence-associated genes. The disease-suppressive potential of these bacteria was validated by inoculating them into conducive soil. The Dyadobacter strain alone or in combination with Chitinophaga strains significantly decreased egg densities after one growing cycle of soybeans. In contrast, Chitinophaga strains alone required more than one growing cycle to significantly reduce SCN egg hatching and population density.
conclusionThis study revealed how soybean monoculture for decades induced microbiota homeostasis, leading to the formation of SCN-suppressive soil. The high relative abundance of antagonistic bacteria in the cyst suppressed the SCN population both directly and indirectly. Because uncontrolled proliferation will likely lead to quick demise due to host population collapse, obligate parasites like SCN may have evolved to modulate virulence/proliferation to balance these conflicting needs. Video Abstract.
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