Work

Potato Elicitor Peptide StPep1 Enhances Resistance to Phytophthora infestans in Solanum tuberosum

Year: 2025

Type: article

Abstract: Plant peptides represent a novel molecular tool in crop science due to their essential regulatory roles in plant growth, development, and responses to biotic and abiotic stresses. Although numerous bioactive plant peptides have been identified, a major gap remains in translating these discoveries into practical strategies for crop protection. Synthetic peptides are increasingly recognized as promising biological agents for enhancing crop productivity and protection in an environmentally sustainable manner. In this study, we demonstrate that the potato elicitor peptide StPep1, applied as a foliar spray at nanomolar concentrations (10–100 nM), strongly enhances resistance to the oomycete pathogen Phytophthora infestans in Solanum tuberosum cv. Gala under controlled climate chamber conditions. Preventive treatment 24 h prior to inoculation markedly reduced disease symptoms, with treated plants exhibiting a phenotype comparable to uninoculated controls. These findings highlight the potential of low-dose StPep1 as an environmentally friendly and cost-effective bioprotective agent, providing a foundation for future translational research and small-scale agricultural applications.

Source: Journal of Fungi

DOI: 10.3390/jof11120893

Authors: Alexander Skripnikov, Tatiana Suprunova, Natalia O. Kalinina, Michael Taliansky

Institutions: Russian Academy of Sciences, Lomonosov Moscow State University, Institute of Bioorganic Chemistry, Doka-Gene (Russia)

Language: English

Topic: Plant Pathogens and Resistance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,137