Characterization of corn breeding impact on phylloplane metabolites and holobiont
This research examines how historical corn breeding strategies have influenced leaf surface metabolites and microbial communities, potentially affecting stress tolerance and disease resistance. The study aims to inform future breeding strategies by correlating metabolite profiles with agronomic traits.
Overview
This research project explores the impact of historical corn breeding strategies on the secondary metabolite profiles of leaf surfaces and their associated microbial communities, known as the phylloplane holobiont. By characterizing these metabolite changes across different Pioneer-brand ERA hybrids, the study aims to understand their influence on microbial colonization and the resulting effects on stress tolerance and disease resistance. This information could guide future breeding strategies to optimize crop health and yield.
Technical specifications
The research involves several key components:
- Metabolite Profiling: Analysis of leaf surface metabolites, focusing on secondary metabolites such as phenolic acids, flavonoids, and terpenoids.
- Holobiont Analysis: Using high-throughput sequencing to characterize the diversity and abundance of microbial communities on leaf surfaces.
- Correlation Studies: Linking changes in metabolite profiles with agronomic traits like leaf angle, stress tolerance, and nitrogen use.
The study will assess how breeding for traits like grain yield and nutrient efficiency has unintentionally altered leaf chemistry and microbial interactions.
Technology readiness level
The project is currently at Technology Readiness Level 4, indicating that it involves validation of the technology in a laboratory environment. The research will continue to refine techniques and validate findings over the next two years.
About Penn State University
Penn State University is a comprehensive public land‑grant research university with a large multi‑campus footprint across Pennsylvania. Industry engages through a research and technology park adjacent to the flagship campus that houses corporate R&D, co‑located labs, and flexible collaboration space, as well as a statewide extension network that enables field testing, demonstration, and workforce reach. Integration with a major hospital system supports clinical translation, and an applied research laboratory fosters mission‑driven partnerships with government and industry sponsors. Research is supported by competitive federal funding from agencies such as NSF, NIH, DOE, USDA, DoD, and NASA. A dedicated technology transfer office manages IP, licensing, and startup formation to accelerate commercialization.
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