doi: 10.4489/KJM.20230035 Citation BibTeX RIS Mendeley

First Record of Four Yeast Strains Isolated from Freshwater in Korea

First Record of Four Yeast Strains Isolated from Freshwater in Korea

• Yoosun Oh (Fungi Research Team, Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea)
• Wonsu Cheon (Fungi Research Team, Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea)
• Hye Yeon Mun (Fungi Research Team, Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea)
• Jaeduk Goh (Fungi Research Team, Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea)

Freshwater ecosystems are significant habitats of fungi including yeasts. This study aimed to isolate and characterize wild yeasts from freshwater environments in Korea. The yeast isolates were identified by using the D1/D2 domains of the 26S rDNA regions. We identified four strains, Candida viswanathii (NNIBRFG39781), Curvibasidium cygneicollum (NNIBRFG49003), Oberwinklerozyma silvestris (NNIBRFG39803) and Vishniacozyma foliicola (NNIBRFG6120). These yeasts had not previously been recorded in Korea. We investigated the morphological and cultural characteristics of these yeasts. All of them grew on YPD, PD and YM media. Candida viswanathii (NNIBRFG39781), O. silvestris (NNIBRFG39803) and V. foliicola (NNIBRFG6120) grew in YPD medium containing glucose and in pH range of 4-8. Curvibasidium cygneicollum (NNIBRFG49003) grew well low temperature compared to others and slowly.