Petuniasterone-based insecticidal actives with GABA receptor antagonism
Petuniasterones are a novel class of insecticidal actives derived from Petunia, engineered for production in yeast and transient plant expression systems. They control major lepidopteran pests via a distinct mode of action: antagonism of GABA receptors. The structurally unique ergostane-type steroids are designed to help address resistance and are refined for efficacy and stability in foliar and sprayable formulations.
Overview
Petuniasterones represent an advancement in insecticidal technology. These ergostane-type steroids, originally discovered in Petunia, have been engineered for production in yeast and transient plant expression systems. They offer a novel mode of action as potent inhibitors of major lepidopteran pests, including Spodoptera littoralis and Helicoverpa spp., by antagonizing GABA receptors. This mechanism is distinct from conventional insecticides and is intended to support pest management where resistance is present.
Technical specifications
Key features:
- Engineered production in yeast and transient plant expression systems
- Neurophysiological effects through GABA receptor antagonism
- Targets major lepidopteran pests with demonstrated efficacy even in resistant strains
- Structurally unique scaffold, enabling new pathways for pest control
The development process involves reconstructing the biosynthetic pathway of petuniasterones and their orthoester derivatives. These compounds are then refined for efficacy and stability, with the goal of compatibility with existing foliar and sprayable formulations.
Technology readiness level
This technology is currently at TRL 4, indicating laboratory validation. Further development and optimization are underway to refine production processes and enhance compound efficacy.
About Northeastern University
Northeastern University is a private, comprehensive R1 research university based in Boston with a global campus network. Its century-old cooperative education model integrates full-time, paid placements with academic study, enabling companies to access vetted talent and long-term pipelines worldwide. Industry collaboration is supported by a suburban innovation campus offering test beds, secure labs, and fee-for-use core facilities, alongside co-located partner spaces. The university attracts competitive federal research funding from agencies such as the NSF and NIH. A dedicated technology transfer office streamlines IP, licensing, and startup formation for corporate partnerships.
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