Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (9): 2045-2055.DOI: 10.3969/j.issn.1004-1524.20221254

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Effects of different cultivation modes on agronomic characters and accumulation of active components of Ganoderma lucidum strains

LI Xuelong(), LI Chao, LI Yue, LIU Guoli, ZHANG Peng, ZHANG Min()   

  1. Institute of Edible Fungi, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
  • Received:2022-08-26 Online:2023-09-25 Published:2023-10-09

Abstract:

The aim of the study was to explore the effects of wood log cultivation mode and substrate substitute cultivation mode on main agronomic characters and accumulation of active components of different Ganoderma lucidum strains, and to determine the high-quality and efficient cultivation mode of G. lucidum fruiting body. The wood log and substrate (saw dust, wheat bran, gypsum) were used as the cultivation material, and the average mycelial growth rate, mycelial growth vigor, mycelial growth of full bag time and mycelial characteristics of different G. lucidum strains under the two cultivation modes were compared. The main agronomic traits, such as single fruiting body weight, stalk length, stalk diameter, cap diameter, cap thickness and biological efficiency were compared, too. The contents of triterpenoids, sterols, polysaccharides, proteins and 16 kinds of amino acids in fruiting bodies were detected by pharmacopoeia and national standard methods, and the effects of different cultivation modes on the accumulation of main active components in G. lucidum fruiting bodies were compared. There were some differences in average mycelial growth rate, mycelial growth vigor, mycelial growth full time and mycelial characteristics among the six G. lucidum strains tested under the two cultivation modes. The main agronomic traits of G. lucidum strains under different cultivation modes were significantly different, such as single fruiting body weight, stalk length, stalk diameter, cap diameter, cap thickness and biological efficiency. G. lucidum strain CZ22 got the largest fruiting body weight (117.15 g) and the highest biological efficiency (7.54%) under wood log cultivation mode. Strain CZ22 also got the largest fruiting body weight (40.58 g) and the highest biological efficiency (9.02%) under the substrate substitute cultivation mode. There were some differences in the contents of triterpenoids, sterols and polysaccharides in fruiting bodies of the same G. lucidum strain under different cultivation modes. The highest contents of triterpenes and sterols in fruiting bodies was observed in strain CZ27 (1.14%) under the substrate substitute cultivation mode, and the highest content of polysaccharide in fruiting bodies were achieved by strain CZ25 (1.36%) under the substrate substitute cultivation mode. However, the content of protein, total content of 16 amino acids and each amino acid were significantly different. Compared with the wood log cultivation mode, the G. lucidum cultivated by substitute cultivation mode had higher biological efficiency, larger fruiting body yield and higher content of bioactive components, which provides a theoretical basis for efficient cultivation of G. lucidum.

Key words: Ganoderma lucidum, fruiting body, cultivation modes, agronomic traits, bioactive component

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