Naturally occurring medicinal mushroom-derived antimicrobials: a case-study using Lingzhi or Reishi Ganoderma lucidum

Alka S Karwa1, Mahendra K Rai

  • 1Department of Biotechnology, Amravati University, Amravati 444602, India.

Insights

The Lingzhi mushroom (Ganoderma lucidum) shows antibacterial properties against common pathogens. Combining Ganoderma lucidum extracts with antibiotics significantly boosts their effectiveness.

Area of Science:

  • Mycology
  • Pharmacology
  • Microbiology

Background:

  • Ganoderma lucidum, known as Lingzhi or Reishi mushroom, is a widely used medicinal fungus.
  • There is growing interest in natural products for their potential therapeutic benefits, including antimicrobial properties.

Purpose of the Study:

  • To evaluate the antibacterial activity of Ganoderma lucidum extracts against key bacterial pathogens.
  • To investigate the synergistic effect of Ganoderma lucidum extracts combined with conventional antibiotics.

Main Methods:

  • Fruit body powder of Ganoderma lucidum was extracted using ethyl alcohol and water.
  • Antibacterial activity was assessed using the disc diffusion method against Staphylococcus aureus, Klebsiella pneumoniae, Bacillus cereus, and Pseudomonas aeruginosa.
  • The efficacy of Ganoderma lucidum extracts was tested both independently and in combination with synthetic antibiotic discs.

Main Results:

  • The aqueous extract of Ganoderma lucidum demonstrated inhibitory effects on the growth of tested pathogenic bacteria.
  • Combining Ganoderma lucidum fruit body extract with commercial antibiotic discs resulted in a significant enhancement of antibacterial activity compared to antibiotics used alone.
  • The study confirmed that Ganoderma lucidum enhances the antibacterial potency of existing antibiotics.

Conclusions:

  • Ganoderma lucidum possesses notable antibacterial activity against Gram-positive and Gram-negative pathogens.
  • The combination of Ganoderma lucidum extracts with antibiotics offers a promising strategy for augmenting antimicrobial therapy.
  • Further research into Ganoderma lucidum as a natural antibacterial agent and potentiator is warranted.

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