Novel peptide activators of the anaphase promoting complex for plant regeneration
A novel approach to improving plant cell regeneration and stress tolerance through targeted peptide activation of the Anaphase Promoting Complex (APC). This research addresses low transformation and regeneration efficiency in crop plants, offering potential applications in genetic enhancement of crops such as canola.
Overview
Low transformation and plant regeneration efficiency remain major bottlenecks for genetic enhancement of crop plants. This research proposes a novel strategy to overcome these challenges by targeting the Anaphase Promoting Complex (APC) with small peptides designed to bind to the complex and block a negative regulatory interaction. The intended outcome is APC activation, which promotes cell division, enhances cell health, and improves stress tolerance. While the APC/C has been extensively studied in yeast and mammals, very little research has explored the role of the APC/C core complex and its activators during protoplast and microspore regeneration in plants. This work aims to fill that gap and unlock new pathways for improving crop regeneration and resilience.
Technical specifications
Research approach:
- Design and delivery of small peptides that bind to the Anaphase Promoting Complex
- Blocking of negative interactions that suppress APC activity
- Activation of APC to promote cell division and regeneration
- Application to canola protoplasts as an initial validation platform
Key indicators of success:
- Reduction of APC substrate levels, indicating increased APC activity in cells and tissues
- Faster protoplast division rates
- Improved callus formation rates confirming APC activation
Potential applications:
- Genetic enhancement and transformation of crop plants
- Improved plant regeneration efficiency for breeding programs
- Enhanced cellular stress tolerance in crops
Technology readiness level
This research is at an early discovery stage. Future validation will involve delivering the peptide in canola protoplasts and monitoring APC substrate degradation as an indicator of APC activity. Confirmation of faster protoplast division and improved callus formation rates will validate APC activation. Further development will be needed to progress from proof-of-concept in protoplasts to broader application in plant regeneration workflows.
About National Research Council of Canada
Canada’s national research and technology organization, headquartered in Ottawa with a multi‑site footprint across all regions, the National Research Council delivers mission‑driven R&D and technical services for government and industry. Companies engage through on‑site collaboration spaces, fee‑for‑service testing and certification, and access to unique facilities, pilot plants, and scale‑up expertise located near regional industry clusters. A nationwide SME engagement program and dedicated partnership managers streamline collaborations, from short technical sprints to multi‑year consortia. Research is primarily supported by Government of Canada appropriations, complemented by competitive federal and provincial funding and industry cost‑sharing. A dedicated technology transfer office manages IP strategy, licensing, and pathways for spin‑outs.
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