Date of Defense
Date of Graduation
Vestaron currently uses an established and reliable peptide discovery and development research platform, particularly for the development of insecticidal peptides. The platform centers around a proprietary yeast expression system for peptide production (“Vestaron’s yeast expression system"). Vestaron aims to expand their portfolio and provide clean solutions in crop protection using peptide technologies to protect plants not only from insect pests but also microbial pests including phytopathogenic fungi and bacteria. Antimicrobial peptides (AMPs) have been studied extensively. However, it is questionable whether Vestaron’s yeast expression system can express AMPs heterologously. In this study, thirteen promising antimicrobial peptides were selected from literature reports to test the ability of Vestaron’s yeast expression system to heterologously express AMPs which maintained their antimicrobial activities. Five out of the thirteen AMPs were successfully expressed in the Vestaron yeast expression system. They all showed antibacterial activities against some agriculturally important phytopathogenic bacterial species. From this research, it has been confirmed that the Vestaron yeast expression system is usable for AMP heterologous expression. A few lead candidates for possible commercialization for plant health solutions have been identified from this program.
Chen, Sydney, "Anti-Microbial Peptide Screen for Crop Protection" (2023). Honors Theses. 3724.
Honors Thesis-Open Access