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Comprehending Mycelium

Mycelium, the foundational structure of fungi, serves as the equivalent of the digestive system for mushrooms. It searches for nutrients, converts them into an absorbable form for the fungus, and thereby nourishes the fungus. This process also enriches the nearby soil by producing nutrient-rich biomass beneficial for other plants and an excellent mulching component for gardening.
Beyond their significance in mushroom development, mycelium networks are essential for the well-being and growth of numerous land plants, including trees. For example, tree roots and fungi form a mutually beneficial relationship: the tree supplies the fungus with sugars as a carbon source, and the fungus reciprocates by providing the tree with vital minerals like nitrogen and phosphorus. Learn more about this symbiotic relationship here.
Intriguingly, mycelium networks act as a subterranean communication network among plants, analogous to our brain’s neural networks. Recent studies propose that plants and trees might have rudimentary nervous systems that fungi could potentially impact, influencing aspects like communication, memory, and learning. Moreover, by decomposing decaying organic matter and neutralizing pollutants, mycelium enhances soil health.
For those keen on growing magic mushrooms, grasping the growth pattern of mycelium is crucial. Although the cultivation process might seem daunting to novices, understanding mycelium is an essential starting point. While there’s always the option of buying mushrooms from Organic Shroom Canada online, knowledge about mycelium can enrich your cultivation journey.

Mycelium’s Growth Pattern


Upon encountering a suitable growth environment, fungal spores instigate the development of two types of mycelium. The first, primary or monokaryotic mycelium, is characterized by a single nucleus within each cell and is usually invisible to the naked eye. The second, known as secondary or dikaryotic mycelium, is visible and houses two nuclei within each cell.

When fungal spores germinate, they begin to form what is known as the monokaryotic mycelium, or the primary mycelium. Upon encountering another compatible monokaryotic mycelium, the two can merge to create the second stage, the dikaryotic mycelium. This secondary mycelium possesses the ability to produce mushrooms or sclerotia.


Types of Mycelia


Mycelia can be classified into three categories, two of which signify successful cultivation.


  1. Rhizomorphic mycelia spread out like strings. They’re simple to identify and are made up of units called hyphae. The rhizomorphs represent the network of grouped hyphae. Rhizomorphic mycelia initially branch out and then send chemical signals back to the colony, suggesting that the region ahead is a good source of nutrients. The rest of the mycelia then proceed to follow suit. The hyphae at the forefront of the rhizomorphic mycelia release a substance called peroxidase that breaks down the material in front of them for nourishment. The hyphae then spread over the material, distributing the nutrients throughout the colony. Many cultivators favor this type of mycelia due to the increased chances of mushroom production from the rhizomorphic mycelia growing from the substrate.
  2. Tomentose or “Fluffy” mycelia, share many characteristics with Rhizomorphic mycelia, but the arrangement of the fluffy mycelia strands is unique. While the strands may not be instantly visible, they are indeed there. Their cotton-ball-like appearance is indicative of the strands being grouped together. Whether your mycelia evolve into tomentose or rhizomorphic forms largely depends on the growth environment. Cultivators continue to debate if the type of mycelia influences the growth rate or the crop yield.
  3. Aerial mycelia develop when the growth conditions are less than ideal. Under such circumstances, the mycelia tend to grow outward instead of spreading across the medium or forming a ball. Frequently confused for bacterial infection, this type of mycelia can impede your mushroom cultivation, leading to smaller, weaker mushrooms. Aerial mycelia usually arise due to a lack of fresh air exchange and excessive humidity.


Mycelium or Mould?


It’s vital to distinguish between mould and mycelium. If you notice green, blue, grey, or black patches in or on your fruiting box, it’s likely contaminated. Discoloration is the primary sign, though blue spots may just be bruises.

Cobweb moulds are typically quite noticeable. Unlike the bright
The white part of Mycelium usually exhibits a greyish tint and a fluffy, fibrous 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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