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Growth Characteristics of Polyporales Mushrooms for the Mycelial Mat Formation

Bin Bae1, Minseek Kim1, Sinil Kim1

  • 1Department of Bio and Medical Big Data (BK4 program) and Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.

Mycobiology
|July 22, 2021
PubMed

Insights

Researchers identified Ganoderma lucidum LBS5496GL as a top mushroom strain for creating sustainable materials. Its fast-growing mycelia exhibit superior strength, offering a promising alternative to fossil fuel-based products.

Area of Science:

  • Mycology
  • Materials Science
  • Biotechnology

Background:

  • Mushroom mycelia are explored as sustainable alternatives to fossil fuel-based materials.
  • Polyporales genera including Coriolus, Trametes, Pycnoporus, Ganoderma, and Formitella were investigated.
  • Assessing mycelial growth characteristics is crucial for material applications.

Purpose of the Study:

  • To evaluate mycelial growth and strength of various Polyporales strains.
  • To identify optimal strains for developing novel bio-based materials.
  • To understand the structural basis for mycelial strength.

Main Methods:

  • Screening of 64 Polyporales strains for mycelial growth.
  • Cultivation on sawdust-based solid and potato dextrose liquid media.
  • Scanning electron microscopy (SEM) to analyze hyphal morphology.
  • Assessment of mycelial mat physical strength.

Main Results:

  • Ganoderma lucidum LBS5496GL demonstrated superior mycelial growth rate and strength.
  • Compared to other strains with hyphae <2 µm, G. lucidum LBS5496GL possesses thicker hyphae (13 µm).
  • Glycerol and skim milk were identified as optimal carbon and nitrogen sources, respectively, for G. lucidum LBS5496GL growth.

Conclusions:

  • Ganoderma lucidum LBS5496GL is a promising candidate for bio-based material production.
  • Thicker hyphae contribute significantly to the enhanced physical strength of mycelial mats.
  • Optimized nutrient sources can further enhance mycelial development for material applications.
Keywords:
GanodermaMycelial matPolyporalesSEM analysis

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