ArticleEnvironmental microbiome2025
Succinic acid reduces tomato bacterial wilt disease by recruiting Sphingomonas sp.
Article in Environmental microbiome, 2025. 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.
- Article
- Phyllosphere microbiome responses to spray-induced gene silencing targeting Phytophthora infestans in potato.NPJ biofilms and microbiomes · 2026Article
- Research Progress on Rhizosphere Microbiota for Controlling Soil-Borne Diseases: Mechanisms, Applications, and Challenges.Microorganisms · 2026Review
- Mechanistic Insights for Microbiome Application in Plant Disease Resistance.Molecular plant pathology · 2026Review
- Article
- Metagenomic and metabolomic insights into the rhizosphere ofFrontiers in plant science · 2026Article
- The interaction between litter input and soil microbial community regulates the intraspecific allelopathic effects ofFrontiers in plant science · 2026Article
- 24-Epibrassinolide-Succinic Acid Conjugate Is Involved in the Acclimation of Rape Plants to Salt Stress.Plants (Basel, Switzerland) · 2025Article
- Succinic acid improves crop chemical components by regulating soil chemical properties, microbes and metabolites.Frontiers in microbiology · 2025Article
- The impact of nanodrugs on the metagenome of tobacco rhizosphere soil.Frontiers in microbiology · 2025Article
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Authors and funding
12 authors.
Funding
Abstract
backgroundRoot exudates are key mediators in maintaining plant health by mediating interactions with the rhizosphere microbiome. Plants release specific exudates to defend against pathogens, either directly by inhibiting pathogen growth or indirectly through alterations in the microbial community. However, the mechanisms by which root exudates influence the rhizosphere microbiome to enhance plant resistance remain poorly understood. In this study, we evaluated the effects of 23 root exudates on the growth of the pathogen Ralstonia solanacearum and tomato bacterial wilt.
resultsSeventeen of the exudates reduced the disease index, with most having neutral or even promotive effects on R. solanacearum growth. Notably, succinic acid (SA) completely suppressed bacterial wilt without directly affecting the pathogen or tomato plants in the absence of the rhizosphere microbiome. We further explored the impact of SA on the rhizosphere bacterial community in both tomato rhizosphere and bulk soil. Only the bacterial community in the rhizosphere responded significantly to SA addition, with indicator species and network analyses identifying Sphingomonas sp. WX113 as the key taxa associated with this response. A subsequent greenhouse experiment showed that co-applying Sphingomonas sp. WX113 with SA achieved 100% biocontrol efficiency, outperforming either treatment alone. In vitro assays further demonstrated that SA enhanced the antagonistic activity of Sphingomonas sp. WX113 against R. solanacearum.
conclusionsOur findings emphasize the host-mediated role of root exudates, such as succinic acid, in selectively promoting beneficial Sphingomonas sp., thereby enhancing plant resistance to bacterial wilt. These results offer new perspectives on the combination of beneficial microbes and their matching compounds for soil-borne diseases management.
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