Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (12): 35-41.doi: 10.11924/j.issn.1000-6850.casb2021-1214

Previous Articles     Next Articles

Seven Ectomycorrhizal Fungi: Determination of the Growth Curve Characteristics

WEN Chunyu(), XU Ming, ZHANG Jiao, NIE Kun, ZHANG Jian()   

  1. The Institute of Fungal Resource, College of Life Sciences, Guizhou University, Guiyang 550025
  • Received:2021-12-28 Revised:2022-05-02 Online:2023-04-25 Published:2023-04-21

Abstract:

In order to understand the growth characteristics of ectomycorrhizal fungi under laboratory culture conditions, Clavulina cinerea (Bull.) J. Schrōt., Lactarius vellereus (Fr.) Fr., Lactarius piperatus (L.) Pers., Lycoperdon perlatum Pers., Lycoperdon umbrinum Pers., Strobilomyces glubricaps Chiu and Suillus granulatus (L.) Roussel were selected as the materials. The growth curves of the 7 ectomycorrhizal fungi were determined by the combination of solid PDA medium, cross method (measuring the colony growth diameter ) and the improved liquid PD medium (measuring the biomass of hyphae). The results showed that there were significant differences in the growth rates of different ectomycorrhizal fungi under the condition of solid medium culture, and the growth rates were as follows: Strobilomyces glubricaps W.F. Chiu > Clavulina cinerea (Bull.) J. Schrōt. > Lactarius vellereus (Fr.) Fr. > Lycoperdon umbrinum Pers. > Lycoperdon perlatum Pers. > Suillus granulatus (L.) Roussel > Lactarius piperatus (L.) Pers.. The growth rates of different ectomycorrhizal fungi in liquid medium were significantly different, which were in an order of Clavulina cinerea (Bull.) J. Schrōt. > Strobilomyces glubricaps W.F. Chiu > Lycoperdon perlatum Pers. > Lactarius vellereus (Fr.) Fr. > Lycoperdon umbrinum Pers. > Lactarius piperatus (L.) Pers. > Suillus granulatus (L.) Roussel. In conclusion, the growth rate of the same ectomycorrhizal fungi in solid and liquid media is not completely consistent. In production, the size of colonies alone cannot reflect the real growth status of strains.

Key words: ectomycorrhizal fungi, growth characteristic, cross method, mycelia biomass method, growth curve