›› 2019, Vol. 31 ›› Issue (10): 1655-1662.DOI: 10.3969/j.issn.1004-1524.2019.10.11

• Plant Protection • Previous Articles     Next Articles

Identification and culture conditions of a wild-type Termitomyces aurantiacus strain from Lincang

ZHOU Huiming1,2, ZHANG Yanzhen1,2, CHAI Hongmei2,*, YANG Rongqing1, TAN Ying1, ZHANG Pingping1, BAI Yuying1, ZHAO Yilian1, JIN Yujie1   

  1. 1. School of Biotechnology and Engineering, West Yunnan University, Lincang 677000, China;
    2. Institute of Biotechnology and Germplasmic Resource, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
  • Received:2019-04-28 Online:2019-10-25 Published:2019-10-30

Abstract: To screen the optimal culture condition for mycelial growth of Termitomyces aurantiacus and lay the foundation for its bionic cultivation, strain LCT10 was isolated from a wild mushroom fruiting body of Termitomyces from Lincang, Yunnan. Taxonomic status was identified based on its morphology and ITS sequence analysis, and the different culture conditions were designed to determine the effect of physical factors (temperature, light intensity and aeration) and chemical factors (pH, carbon resources, nitrogen sources and C/N) on mycelial growth of T. aurantiacus. The result showed that the strain LCT10 was T. aurantiacus, its morphological characteristics were consistent with its molecular identification. Its optimal temperature and pH were 25 ℃ and 8.0. It was able to grow in 5 kinds of ventilation treatments, and the growth of mycelia was the fastest in the treatment of no ventilation. Soluble starch, corn flour, sucrose, honey and glucose were suitable for its growth, honey was the best carbon soure for mycelial growth. Peptone, glycine, ammonium nitrate and urea could be used as nitrogen sources and peptone was the best. The optimum C/N for mycelial growth was (20-30)∶1. The growth of strain LCT10 under the best culture conditions had significant difference at level of 0.05 comparing with other treatments

Key words: Termitomyces aurantiacus, morphology, ITS analysis, biological characteristics

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