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Interkingdom Signaling between Bacillus subtilis and Sporisorium scitamineum: Exploiting the Ecological Role of Natural Product as Novel Biocontrol Agents

Project description

Bacterial lipopeptides signalling: impact on pathogens

Bacterial lipopeptides are recognised for their antimicrobial effects, but their signalling potential against basidiomycete plant pathogens at sub-inhibitory levels is unexplored. With the support of the Marie Skłodowska-Curie Actions programme, the LIPQUORUM project investigates signalling interactions between beneficial bacteria from the Bacillus subtilis species complex and the fungal pathogen Sporisorium scitamineum, which causes sugarcane smut disease. It considers how lipopeptides (iturin A, fengycins, and surfactins) affect the growth, morphology, mating and virulence of the fungus. LIPQUORUM will analyse the effects of lipopeptides at different concentrations, explore their impact on virulence, and uncover the molecular mechanisms involved. Using high-performance liquid chromatography-tandem mass spectrometry and RNA sequencing, it will redefine antimicrobial compounds as potential signalling molecules.

Objective

Global food security and sustainable agriculture challenges demand innovative crop protection approaches. This project investigates interkingdom signaling between beneficial bacteria (Bacillus subtilis species complex) and a fungal pathogen (Sporisorium scitamineum) causing sugarcane smut disease. While bacterial lipopeptides are known for their antimicrobial properties, their potential as signaling molecules at sub-inhibitory concentrations remains unexplored for basidiomycete plant pathogens.
This research aims to unravel how lipopeptides (iturin A, fengycins, and surfactins) impact S. scitamineum's growth, morphology, mating, and virulence in sugarcane. I will characterize lipopeptide effects at various concentrations, investigate their impact on fungal virulence, elucidate underlying molecular mechanisms, and explore their ecological relevance in soil and on plant surfaces.
Using advanced techniques like High-Performance Liquid Chromatography-Tandem Mass Spectrometry, RNA-seq, and High-resolution Desorption Electrospray Ionization, I'll reframe traditionally viewed antimicrobial compounds as potential signaling molecules. The project includes greenhouse trials at the Netherlands Institute of Ecology, enhancing its translational aspect.
This Marie Skłodowska-Curie Action program at Leiden University, supervised by Prof. Ákos T. Kovács, will advance scientific knowledge and provide comprehensive training in research techniques, project management, and science communication. The project's interdisciplinary nature, combining microbiology, biochemistry, and agricultural science, will foster new collaborations and enhance career prospects.
By bridging fundamental research with practical applications, this project may revolutionize our understanding of microbial ecology in agricultural systems. The findings could lead to novel, eco-friendly biocontrol strategies, contributing to sustainable agriculture and global food security.

Fields of science (EuroSciVoc)

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Programme(s)

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Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

UNIVERSITEIT LEIDEN
Net EU contribution
€ 217 076,16
Address
RAPENBURG 70
2311 EZ Leiden
Netherlands
Activity type
Higher or Secondary Education Establishments
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Total cost
No data