Auricularia auricula-judae is an edible mushroom, which is known as wood ear, free ear, black ear mushroom, and free jelly fish. This study was carried out to obtain the basic information for mycelial culture conditions of Auricularia auriculajudae. According to colony diameter and mycelial density, the media for suitable mycelial growth were PDA and MCM. The optimum temperature for mycelial growth was 25~30oC. Carbon and nitrogen sources were mannose and malt extract, respectively. The optimum C/N ratio was in the range of 10 to 1 with 2% glucose. Other minor components for the optimal growth were thiamine-HCl and biotin as vitamins, succinic acid and lactic acid as organic acids, and MgSO4·7H2O and KH2PO4 as mineral salts.

ABSTRACT
 Introduction
 Materials and Methods
  Fungal isolates
  Effect of favorable nutrient sources
 Results and Discussion
  Screening of the suitable culture media
  Effect of favorable nutrient sources
 Acknowledgement
 References

• Woo-Sik Jo(Gyeongbuk Province Agricultural Technology Administration, Daegu 702-320, Korea Korea)
• Dong-Geun Kim( Gyeongbuk Province Agricultural Technology Administration, Daegu 702-320, Korea Korea) | Dong-Geun Kim
• Soon-Ja Seok( Rural Resources Development Institute, National Academy of Agricultural Science, RDA, Suwon 404-707, Korea) | Soon-Ja Seok
• Hee-Young Jung( Department of Agricultural Biology, Kyeongbuk National University, Daegu 702-701, Korea) | Hee-Young Jung
• Seung-Chun Park( College of Veterinary medicine Kyugpook National University, Daegu 702-701, Korea) | Seung-Chun Park