English
Identification of Endophytic Fungi Isolated from Potato (Solanum tuberosum L.) in Jeju Island
Hyeok Park*, Sumi Kim, Gye-Ryeong Bak
Highland Agriculture Research Institute, National Institute of Crop Science, Pyeongchang, Korea
*Email:mycoph@korea.kr
Jeju island ranks second in domestic potato production after Gangwon state, and potatoes are one of the most important food crops on Jeju Island. Various diseases by fungal pathogen such as Late blight, Fusarium wilt, and Black scurf occur in spring potato cultivation in Jeju Island. The role of endophytic fungi is particularly important in the eco-friendly control of soil-borne diseases that are difficult to control with pesticides. In this study, we isolated the endophytic fungi from potato plants grown in Jeju island. In May 2025, plant samples were collected from seven potato fields in Jeju Island, and fungal strains were isolated from healthy plant tissues such as leaves, stems, petals, and roots. The isolated strains were identified by morphological and molecular analysis. As a result, 19 fungal species from 15 genera were identified. Stemphylium lycopersici was isolated with the highest frequency. Neoascochyta desmazieri and Ovatospora brasiliensis were confirmed as previously unreported species in Korea. We described the morphological characteristics and molecular analysis of the identified endophytic fungi and two unreported fungi.
