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Demystifying Mycelium

Mycelium, the underneath network of fungi, operates much like a digestive system for mushrooms. It actively hunts for nutrients, breaks them down into a consumable form for the fungi, and in the process, nourishes the fungus. The residual product of this process is a nutrient-rich biomass that can be used as superior mulch for gardening, simultaneously enriching the surrounding soil and providing vital nutrients for other plants.

Beyond aiding in mushroom development, mycelium networks are critical for the growth and health of numerous land plants, including trees. For example, tree roots and fungi participate in a symbiotic exchange – the tree provides the fungi with carbon in the form of sugars, and the fungi reciprocate by supplying the tree with essential minerals like nitrogen and phosphorus. You can learn more about this fascinating interplay here.

Intriguingly, mycelium networks function somewhat like an underground neural network among plants, bearing some resemblance to our brain’s neural networks. Current scientific investigations suggest that plants and trees may have rudimentary nervous systems that fungi can potentially manipulate, influencing processes such as communication, memory, and learning. Furthermore, mycelium enhances soil health by decomposing organic waste and neutralizing any present pollutants.

If you’re keen on cultivating magic mushrooms, grasping the growth of mycelium is essential. While the cultivation process might be daunting for novices, gaining insights about mycelium is a vital initial step. Even though buying mushrooms from Shroom Delivery Toronto Canada online is always an option, understanding mycelium could elevate your cultivation journey.

Mycelium’s Growth Process


Upon encountering a suitable environment for growth, fungal spores trigger the formation of two types of mycelium. The first, referred to as primary or monokaryotic mycelium, is identified by a single nucleus in each cell and is generally invisible to the unaided eye. The second type, known as secondary or dikaryotic mycelium, is visible and houses two nuclei within each cell.

As the fungal spores germinate, they develop into the first stage known as the monokaryotic mycelium. When this primary mycelium encounters another compatible monokaryotic mycelium, they can merge to form the second stage, the dikaryotic mycelium. This secondary mycelium has the potential to produce mushrooms or sclerotia.


Types of Mycelia


Mycelia can be classified into three types, two of which signal successful cultivation.


  1. Rhizomorphic mycelia are characterized by their string-like extensions. Composed of units called hyphae, rhizomorphic mycelia spread first, then signal to the colony that the area ahead is conducive for nutrient supply. The remaining mycelia follow suit. The hyphae at the forefront release peroxidase, a substance that breaks down the material in front of it for nutrient absorption. The hyphae then spread over the material, distributing the nutrients throughout the colony. This type of mycelia is favored by many cultivators due to its higher chances of producing mushrooms as the Rhizomorphic mycelia sprout from the substrate.
  2. Tomentose, or “Fluffy” mycelia, share many similarities with Rhizomorphic mycelia but have a unique strand arrangement. These strands might not be readily visible as they are clustered together, giving a cotton-ball-like appearance. Whether your mycelia develop tomentose or rhizomorphic characteristics largely depends on the growing conditions. There’s an ongoing debate among cultivators regarding the influence of mycelia type on growth rate and harvest yield.
  3. Aerial mycelia appear when the growing conditions are less than ideal. In such cases, the mycelia tend to grow outward instead of spreading across the medium or forming a ball. Often mistaken for a bacterial infection, this mycelia type can interfere with your mushroom cultivation, leading to smaller, weaker mushrooms. Aerial mycelia usually result from inadequate fresh air exchange and excessive humidity.


Is it Mould or Mycelium?


It’s essential to distinguish between mould and mycelium. If you notice green, blue, grey, or black patches on or inside your fruiting box, it’s likely contaminated. Discoloration is a significant sign. However, blue spots could simply be bruises.

Cobweb moulds are often easily identifiable. Contrary to the bright The Mycelium is typically grey and is characterized by a string-like, fluffy texture. While cobweb moulds and green moulds pose no threat to human health, they can adversely impact the health of your mushrooms.


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