ArticlePlant biotechnology journal2024
RAS signalling genes can be used as host-induced gene silencing targets to control fungal diseases caused by Sclerotinia sclerotiorum and Botrytis cinerea.
Article in Plant biotechnology journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 25 citations in OpenAlex.
- Interactional Endocytosis and Transmembrane Transport Promote Cellular Internalization of Nano-Delivered RNA Drugs for Efficient Control of Crop Diseases.Plant biotechnology journal · 2026Article
- The DENN Protein SMD1 Forms a Signalling Hub With Rab GTPase YPT1 to Regulate Diverse Biological Processes in Phytopathogenic Fungi and Serves as a HIGS Target for Crop Protection.Molecular plant pathology · 2026Article
- Revealing the Modulatory Role of Microsporidian circRNAs in the Infection of Honey Bee Workers.Insects · 2026Article
- Actin dynamics controlled by IqgC, a RasGAP at the crossroads between the IQGAP and fungal GAP1 families.FEBS open bio · 2026Review
- RNA Interference in Plant Interactions with Pathogenic Microorganisms: A Weapon or a Liability?Current issues in molecular biology · 2025Review
- Integrated Pest Management of Sclerotinia Stem Rot in Soybean: Current Strategies and Future Prospects.Journal of fungi (Basel, Switzerland) · 2025Review
- The Velvet Complex Is Essential for Sclerotia Formation and Virulence inJournal of fungi (Basel, Switzerland) · 2025Article
- Argonaute1-Dependent LtmilR2 Negatively Regulated Infection of Lasiodiplodia theobromae by Targeting a Guanine Nucleotide Exchange Factor in RAS Signalling.Plant, cell & environment · 2025Article
- The SsSmk1-SsSom1-SsMsb2 Pathway Regulates Infection Cushion Formation and Pathogenicity in Sclerotinia sclerotiorum.Molecular plant pathology · 2025Article
- A GDP-mannose-1-phosphate guanylyltransferase as a potential HIGS target against Sclerotinia sclerotiorum.PLoS pathogens · 2025Article
- Trans-Kingdom sRNA Silencing inPathogens (Basel, Switzerland) · 2025Review
- Article
- The schizotrophic lifestyle of Sclerotinia sclerotiorum.Molecular plant pathology · 2024Review
- Recent advances in virulence of a broad host range plant pathogenFrontiers in microbiology · 2024Review
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sclerotinia sclerotiorum causes white mold (also called stem rot, Sclerotinia blight, etc.) in many economically important plants. It is a notorious soilborne fungal pathogen due to its wide host range and ability to survive in soil for long periods of time as sclerotia. Although host-induced gene silencing (HIGS) was recently demonstrated to be an effective method for controlling white mold, limited gene targets are available. Here, using a forward genetics approach, we identified a RAS-GTPase activating protein, SsGAP1, which plays essential roles in sclerotia formation, compound appressoria production and virulence. In parallel, as revealed by our knockout analysis, the SsGAP1 ortholog in Botrytis cinerea, BcGAP1, plays similar roles in fungal development and virulence. By knocking down SsRAS1 and SsRAS2, we also revealed that both SsRAS1 and SsRAS2 are required for vegetative growth, sclerotia development, compound appressoria production and virulence in S. sclerotiorum. Due to the major roles these RAS signalling components play in Sclerotiniaceae biology, they can be used as HIGS targets to control diseases caused by both S. sclerotiorum and B. cinerea. Indeed, when we introduced HIGS constructs targeting SsGAP1, SsRAS1 and SsRAS2 in Nicotiana benthamiana and Arabidopsis thaliana, we observed reduced virulence. Taken together, our forward genetics gene discovery pipeline in S. sclerotiorum is highly effective in identifying novel HIGS targets to control S. sclerotiorum and B. cinerea.
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