Arbuscular mycorrhiza (AM) is one kind of endomycorrhiza. “Endo” means the fungal partner grows within root tissue; “arbuscular” names the distinctive branched structures it forms. MegaMyco contains the AM fungus Rhizophagus irregularis.
Four terms you may see.
- Arbuscular mycorrhiza (AM). Hyphae enter the root cortex and form branched arbuscules inside root cells, across a plant-derived membrane. The arbuscule is an important exchange interface.
- Ectomycorrhiza (ECM). The fungus forms a sheath around fine root tips and a Hartig net between root cells. This association is common among many forest trees.
- Ericoid mycorrhiza. Fungal partners form coils inside fine roots of many plants in the heather family (Ericaceae), including heathers and many blueberries.
- Orchid mycorrhiza. Orchid seeds generally rely on compatible fungi to germinate in nature. Most orchids later become photosynthetic; how much adult orchids rely on fungi varies by species and life history.
These are different associations, not interchangeable ingredients. A plant name or broad group alone cannot confirm compatibility with MegaMyco. Check the specific plant and the fungal partner it forms.
Keep the context.
Biological compatibility, successful colonisation and a measurable plant response are different questions. The growing conditions matter, and general research is not a promise of a particular result with MegaMyco.
References
These references explain mycorrhizal types and orchid and ericoid associations. They are not MegaMyco product trials.