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Comprehending Mycelium

Mycelium, the root structure of fungi, operates as the digestive system for mushrooms. It extracts nutrients, transforms them into a digestible format for the fungus, thereby nourishing it. The residual outcome of this process enriches the surrounding soil, supplying vital nutrients for other plants and generating a nutrient-rich biomass ideal for garden mulch.

Beyond their contribution to mushroom growth, mycelium networks are indispensable for the health and development of numerous terrestrial plants, including trees. For example, tree roots engage in a mutually beneficial exchange with fungi: the tree delivers carbon in the form of sugars to the fungus, and in return, the fungus provides the tree with key minerals like nitrogen and phosphorus. Learn more about this symbiotic relationship here.

Fascinatingly, mycelium networks function as an underground signaling system among plants, akin to our brain’s neural networks. Recent scientific studies indicate that plants and trees might have basic nervous systems that fungi could possibly influence, impacting functions such as communication, memory, and learning. Moreover, mycelium promotes soil health by decomposing decaying organic matter and neutralizing any pollutants present.

If you’re keen on cultivating magic mushrooms, it’s essential to understand mycelium development. Although the cultivation process can be daunting for novices, acquiring knowledge about mycelium is a critical first step. While it’s perfectly fine to buy mushrooms from Magic Mushrooms Winnipeg Canada online, learning about mycelium can elevate your cultivation journey.

Mycelium Growth Process


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

Once the fungal spores germinate, they start to form the initial stage of growth known as the monokaryotic mycelium. Upon encountering another compatible monokaryotic mycelium, they can unite to create the second stage called the dikaryotic mycelium. It’s this secondary mycelium that has the ability to produce mushrooms or sclerotia.


Types of Mycelia


There are three categories of mycelia, two of which are considered signs of successful cultivation.


  1. Rhizomorphic mycelia extend like strings and are easily identifiable. These mycelia, like all others, are made up of units called hyphae. The rhizomorphs are the network of grouped hyphae. Rhizomorphic mycelia initially spread out, then send chemical signals back to the colony indicating that the area ahead is suitable for nutrient supply. The rest of the mycelia then follow. The hyphae at the tip of the rhizomorphic mycelia release peroxidase, a substance that breaks down the material in front of it for nutrition. The hyphae then cover the material, distributing the nutrients throughout the colony. Many growers prefer this type of mycelia as it increases the probability of mushroom production due to the sprouting of the Rhizomorphic mycelia from the substrate.
  2. Tomentose, or “Fluffy” mycelia, have more similarities than differences compared to Rhizomorphic mycelia. However, the arrangement of the fluffy mycelia strands is distinctive. While the strands may not be instantly visible, they are certainly there. The cotton-ball-like appearance indicates that the strands are clustered together. Whether your mycelia develop tomentose or rhizomorphic traits largely depends on the growing conditions. There’s an ongoing debate among growers regarding the impact of the type of mycelia on the growth speed or the yield of the harvest.
  3. Aerial mycelia appear when the growing conditions are not ideal. In such cases, the mycelia tend to grow outwards instead of spreading across the medium or forming a ball. Often mistaken for bacterial infection, this type of mycelia can obstruct your mushroom cultivation, leading to smaller, weaker mushrooms. Aerial mycelia usually occur due to inadequate fresh air exchange and excessive humidity.


Mycelium or Mould?


It’s essential to distinguish between mould and mycelium. If you observe green, blue, grey, or black patches on or in your fruiting box, it’s likely that your culture is contaminated. Discoloration is the primary indicator. However, blue spots might simply be bruises.

Cobweb moulds are typically quite noticeable. Instead of the bright
The Mycelium is typically white with a touch of grey and boasts a fluffy, fibrous texture. Despite cobweb moulds and green moulds being harmless to humans, they can adversely impact the health of your mushrooms.

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