Disease Resistance Mechanisms in Potato Cultivars
Summary
Potato cultivars exhibit a multifaceted defence system against pathogens, integrating structural barriers, inducible immunity and specialised biochemical responses. The outer periderm, fortified with suberin and lignin-like phenolics, acts as a physical shield against fungal penetration. Upon pathogen encounter, pattern recognition receptors detect conserved microbial signatures, triggering PAMP-triggered immunity (PTI), which mobilises reactive oxygen species, pathogenesis-related proteins and cell-wall reinforcement. In some interactions, specific resistance (R) genes perceive pathogen effectors and activate effector-triggered immunity (ETI), often culminating in a hypersensitive response that localises infection. Polygenic or quantitative resistance underpins a partial yet durable reduction in disease severity, frequently associated with enhanced accumulation of hydroxycinnamic acids, hydroxycoumarins, steroidal saponins and other antifungal metabolites. Hormonal crosstalk involving salicylic acid, jasmonic acid and ethylene fine-tunes these responses. Advances in high-throughput genomics and untargeted metabolomics have identified defence-related loci and predictive biomarkers, enabling marker-assisted breeding and the rational design of elicitor-based treatments. Understanding the interplay between structural defences, immune signalling and specialised metabolism is essential for developing resilient potato varieties suited to diverse agroecological zones and the challenges of emerging pathogens.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Disease Resistance Mechanisms in Potato Cultivars publication trend
The graph below shows the total number of articles in disease resistance mechanisms in potato cultivars across all publications each year (not limited to Nature Index journals).
Technical terms
Quantitative resistance: Partial disease resistance controlled by multiple genes, resulting in reduced pathogen growth and symptom development.
PAMP-triggered immunity (PTI): The first line of inducible plant defence activated upon recognition of conserved microbial molecules.
Phenylpropanoid pathway: A metabolic route producing phenolic compounds such as flavonoids and lignin precursors that bolster structural and chemical defences.
Untargeted metabolomics: An analytical approach profiling a broad spectrum of metabolites to identify novel compounds associated with plant responses.
References
- Insights on the Structural and Metabolic Resistance of Potato (Solanum tuberosum) Cultivars to Tuber Black Dot (Colletotrichum coccodes). Frontiers in Plant Science (2020).
- A Complex Approach to Control Black Dot Disease in Potato. Agronomy (2024).
- Quantitative Resistance of Potato to Pectobacterium atrosepticum and Phytophthora infestans: Integrating PAMP-Triggered Response and Pathogen Growth. PLOS ONE (2011).
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.