Wolfiporia cocos is a widely known traditional medicine in China, Japan, Korea, and other Asian countries due to its various medicinal effect. Aiming to determine the optimum condition for W. cocos fruit body induction, we cultured 10 strains of W. cocos on potato dextrose agar medium (PDA) in different temperature conditions (12, 16, 20, 24, 28oC). KFRI 1105 exceptively formed fuitbody in low temperatures (12 and 16oC), but in other strains, fruit body induction was restricted. in 12 and 16oC. Fruit body formation started 20oC, and formation rate increased proportionally with the temperature increase. 5 strains induced fruit body in 20oC, 7 strains in 24oC, and 9 strains in 28oC. This is the first research to identify a fruit body formation in vitro cultured W. cocos in Korea. This investigation will enable further studies of W. cocos physiology and breeding. In summary : 1. We identified the optimal conditions for W. cocos fruit body induction in the PDA plate. 2. The fruit body was best induced when it was cultured in 28 oC for 32 days. 3. The fruit bodies showed a honeycomb-like structure, and the average spore size was 7.55 μm in height and the average width was 3.35 μm.

• Jinmo Koo(Gyeongbuk Province Agricultural Technology Administration)
• Sung-Hak Lee(Gyeongbuk Province Agricultural Technology Administration)
• Eun-Hee Kim(Gyeongbuk Province Agricultural Technology Administration)
• Woo-Sik Jo(Gyeongbuk Province Agricultural Technology Administration)