Ganoderma australe
One of the most common tree-dwelling fungi in the world from the genus Ganoderma, known in the UK as the 'Southern Bracket' — despite its wide distribution, it has practically no dedicated clinical research or presence on the supplement market.
Table of contents
TL;DR
One of the most common tree-dwelling fungi in the world from the genus Ganoderma, known in the UK as the 'Southern Bracket' — despite its wide distribution, it has practically no dedicated clinical research or presence on the supplement market.
- →The polysaccharide fraction showed antioxidant activity and reduced the viability of osteosarcoma cells in an in vitro study
- →A mycelial extract in a Thai study contained lovastatin and inhibited HMG-CoA reductase activity in vitro
| Latin name | Ganoderma australe |
|---|---|
| Family | Ganodermataceae |
| Active substances | Phenols, sterols, triterpenes, polysaccharides; trace lovastatin in the mycelium |
| Form | Not available as a supplement — only wild-growing fruiting bodies |
| Evidence level | Hypothesis — 2 in vitro studies, material in one labeled 'aff. australe' |
| Interactions | No drug interaction studies exist for this species |
| Status | No supplement market; this entry is informational/mycological in nature |
Understand
Overview
Ganoderma australe is a species that forms hard, perennial fruiting bodies and is widely distributed across nearly the entire world. It parasitizes the base of living hardwood tree trunks, causing white rot of the wood.
Unlike the reishi mushroom (Ganoderma lucidum), Ganoderma australe has no established history in traditional medicine or a currently functioning supplement market. Available literature is limited almost entirely to taxonomic papers and a handful of in vitro chemistry studies. This entry is informational/mycological in nature.
Who might find this useful? In practice, almost exclusively people interested in mycology and the biodiversity of wood-decay fungi — there's no standardized product that would allow anyone to actually 'use' this species. The promising data come from material labeled in the study as 'Ganoderma aff. australe' (species identity uncertain), which further weakens the confidence of any conclusions specific to this species.
Where it's found
Ganoderma australe is one of the most widely distributed bracket fungus species in the world, occurring in tropical, subtropical and temperate zones on nearly every continent. In the UK and Ireland it's sometimes called the 'Southern Bracket.' It grows at the base of living hardwood tree trunks, causing white rot of the wood.
Mechanism of action
It contains phenolic compounds, sterols, triterpenes and polysaccharides typical of the Ganodermataceae family. In one in vitro study, a polysaccharide fraction from material identified as 'Ganoderma aff. australe' showed antioxidant activity and reduced the viability of human osteosarcoma cells.
Two separate, unrelated pathways have been documented for G. australe. The polysaccharide fraction showed antioxidant activity under in vitro conditions and reduced the viability of osteosarcoma cells. Independently of that, lovastatin — a natural inhibitor of HMG-CoA reductase, the same enzyme blocked by pharmaceutical statins — was detected in the mycelium.
Chemistry typical of the Ganodermataceae family
Fruiting bodies contain phenolic compounds, sterols, triterpenes and polysaccharides characteristic of the genus.
Pathway A — the polysaccharide fraction
In an in vitro study it showed antioxidant activity and reduced the viability of osteosarcoma cells.
Pathway B — lovastatin from the mycelium
Lovastatin detected in a mycelial extract inhibited HMG-CoA reductase activity in an in vitro liver spheroid model.
Evidence: limited — based on 2 studies in this database.
Benefits
Common myths
MythGanoderma australe is just another name for reishi and works the same way.
FactIt's a distinct species, with practically no dedicated clinical research or supplement market.
Practice
Frequently asked questions
No — there's no functioning consumer market built around this species.
Dosage & timing
Typical dose
No established, evidence-based dosing
Form
Not produced commercially as a dietary supplement
Dosing is informational and reflects the ranges used in the cited studies — it does not replace consulting a doctor or pharmacist.
Best times to take it
- Not applicable
Safety
Side effects & contraindications
Possible side effects
No dedicated safety studies in humans
Contraindications
Insufficient data available; caution analogous to other Ganoderma species
Interactions
No drug interaction studies exist for this species
Is it worth taking?
Who it's for
- The polysaccharide fraction showed antioxidant activity and reduced the viability of osteosarcoma cells in an in vitro study
- A mycelial extract in a Thai study contained lovastatin and inhibited HMG-CoA reductase activity in vitro
Not for
- Insufficient data available; caution analogous to other Ganoderma species
Evidence
Worth knowing
In the UK and Ireland it's sometimes called the 'Southern Bracket,' despite its Latin name suggesting a southern-hemisphere origin.
Studies
The polysaccharide fraction showed high antioxidant activity and reduced the viability of osteosarcoma cells in vitro.
Muñoz-Castiblanco T. et al., International Journal of Molecular Sciences, 2022
Anticancer and Antioxidant Activity of Water-Soluble Polysaccharides from Ganoderma aff. australe against Human Osteosarcoma Cells
Research hypothesisMuñoz-Castiblanco T, et al. · International Journal of Molecular Sciences · 2022
The polysaccharide fraction showed high antioxidant activity and reduced the viability of osteosarcoma cells in vitro.
View studyIn vitro cholesterol lowering activity of Ganoderma australe mycelia
Research hypothesisWongkhieo S, et al. · Scientific Reports · 2023
A mycelial extract contained detectable lovastatin and inhibited HMG-CoA reductase activity in an in vitro liver spheroid model.
View studySources & bibliography
Citations are illustrative for this demo version and require full bibliographic verification by the editorial team before production publication.
Compare with similar entries
About the authors of this entry
Author
dr Piotr ZielińskiEndocrinologist
Piotr reviews content on hormones, metabolic health and supplement pharmacology.
131 publications on this site
Medical review
Julia WiśniewskaEditor, Neurohacking & Sleep
Julia writes about nootropics, chronobiology and recovery protocols.
45 publications on this site
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Comments (2)
- KW
Kasia W. 2 weeks ago
Very clearly explained, especially the interactions section — I hadn't seen it laid out this well anywhere else.
- MT
Marek T. a month ago
Are you planning to update this with the newest study from this year? I saw an interesting meta-analysis.