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What is Mycelium in Fungi & Mushrooms | Mycelium Network and Definition

What Is Mycelium In Fungi & Mushrooms | Mycelium Network - Curative Mushrooms

Whether you’re generally studying fungi or specifically learning to grow mushrooms, you’ll mostly encounter the term mycelium, mushroom mycelium in fungi, or mycelium pinning.

Mycelium is the vegetative part of a fungus consisting of a network of thread-like filamentshyphae.

From there, you might find yourself wondering:

  1. Do all fungi form mycelium?
  2. Do all mycelium form mushrooms?
  3. How does mycelium form?
  4. What are the functions of mycelium?
    • Also, why is mycelium important in the forest?
  5. How do I know about mycelium pinning or forming mushrooms?

Below, we will answer these questions as concisely as we can.

1. Do All Fungi Form Mycelium?

What is Mycelium in Fungi & Mushrooms | Mycelium Network - Curative Mushrooms

Firstly, fungi can be multicellular or unicellular. Most fungi are multicellular and have two stages: vegetative and reproductive.

The vegetative stage is a period of intensive growth where mycelium seeks out and absorbs nutrients. Then, it enters a reproductive phase by forming fruiting bodies that release vast quantities of spores.

Unlike multicellular fungi, like yeasts, unicellular fungi do not form mycelium. Instead, they reproduce by budding.

Budding is a process where a small bud arises as an outgrowth of the parent body. This process is triggered by a rich supply of critical nutrients such as amino acids, sugars, and nitrogen compounds.

Fungi may produce asexually by fragmentation, budding, or producing spores.

2. Do All Mycelium Form Mushrooms?

What is Mycelium in Fungi & Mushrooms Mycelium Network - mushroom-bearing fungi - ascomycota and basidiomycota phylum - Curative Mushrooms

Not all mycelium-forming fungi produce mushrooms (a fungus’s fleshy, spore-bearing fruiting body). Fungi that produce mushrooms are primarily members of the phylums Ascomycota or Basidiomycota.

However, it’s not only the mushroom that may produce spores. Spores may be released directly on the somatic hyphae. Further, there are several other types of spore formation.

3. How Does Fungi Mycelium Form?

What is Mycelium in Fungi & Mushrooms Mycelium Network - how does mycelium form - mushroom life cycle - Curative Mushrooms

For fungi that reproduce from spores, mycelium formation is initiated by spore germination. As the spore germinates, it produces a short, initial hypha (called a germ tube).

mushroom grow kit from spores

The germ tube expands and branches. Then, each branch forms new units, and so on. The mycelium (mass of branching hyphae) eventually assumes a circular form by repeated branching.

Although the mycelium expands outward, there can be cross-connections between branches. This allows for quick and easy-to-move nutrients around the growing mycelium.

Rhizomorphic vs Tomentose Mycelium - Is Fluffy Growth Better - Curative Mushrooms

If you’re a mushroom grower, you most likely are concerned with the type of mycelium growth in your substrate. Experienced growers prefer a specific kind of growth. Which do you think is it?

4. What Are the Functions of Mycelium?

What is Mycelium in Fungi & Mushrooms Mycelium Network - functions of the mushroom mycelium - Curative Mushrooms

The mycelium has three main functions:

  1. seeks out the food source
  2. secretes enzymes to break down the food source
  3. distribute the nutrients around the colony and eventually to the growing fruiting body

To understand the functions of mycelium, think of it as the root system of a plant. Like plant roots, the mycelium anchors the mushroom. Plus, it absorbs water and minerals, conducts these to the fruiting body, and stores reserved nutrients.

In addition, the mycelium protects itself by secreting enzymes. Such enzymes break down food sources and fight off competing pathogens (like an immune system response).

Why Is Mycelium Important in the Forest?

What is Mycelium in Fungi & Mushrooms Mycelium Network - why is mycelium important in the forest - Curative Mushrooms

Aside from mycelium’s function in relation to its fruiting body, it does much more to plants and animals in the forest or life on earth.

In the forest, tree and plant roots are connected through mycelium. This allows trees and plants to send and receive information and nutrients from each other like an underground network.

In addition, mycelium breaks down and absorbs surrounding organic matter. In doing so, they play a critical role in ecosystems’ decomposition and regeneration process.

Without mycelium or fungi in general, the Earth will be a pile of dead matter. Thus, fungi make life on Earth possible, not to mention its ability treat, cure, or prevent diseases.

mushroom grow kit from spores

5. How Do I Know About Mycelium Pinning?

What is Mycelium in Fungi & Mushrooms Mycelium Network - how do I know mycelium is pinning or forming mushrooms - Curative Mushrooms

Mycelium Pinning reflects a multi-stage development of mushroom-producing fungi. Primarily, a primordium (sometimes referred to as pinhead) is the earliest identifiable stage of development of a fungus’ fruiting body.

The hyphal knot (center where individual hyphae strands bundle together) is where the pinhead and body of the mushroom first start to sprout. The growth from hyphal knots to pinheads is a process visible to the naked eye.

Literally, pinheads look like tiny white circular pins that will eventually mature into mushrooms.

Usually, pins start to form on the 28th day after spore inoculation. However, this varies depending on the species of fungi and conditions: i.e. substrate type, pH level, humidity, and temperature.

As a recap, we learned that:

  • Not all fungi form mycelium, and not all mycelium produce mushrooms.
  • Also, mycelium functions like plant roots to seek out and distribute nutrients.
  • Lastly, mycelium pinning is characterized by the emergence of white circular pins.

There is still a lot to discuss mycelium in fungi, but hopefully, we have tackled the ones you’re dying to know about.

If you’re interested in mushroom growing or learning about health benefits of mushrooms, feel free to follow us on Facebook.

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FDA DISCLAIMER

Curative Mushrooms has to post the standard FDA Disclaimer…The statements made regarding medicinal mushrooms have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. Curative Mushrooms is not making claims intended to diagnose, treat, cure or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from healthcare practitioners. Please consult your healthcare professional about potential interactions or other possible complications before consuming the medicinal mushrooms. The Federal Food, Drug and Cosmetic Act requires this notice.

MEDICAL DISCLAIMER

This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Curative Mushrooms nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.

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Jess is a feature writer and a Psychometrist by profession, exploring emerging mental health and wellness trends. She came across the fantastic world of medicinal mushrooms through the Curative Mushrooms online community. Since then, she has taken an interest in growing medicinal mushrooms, exploring their medicinal and therapeutic potential and the current ethical and legal issues surrounding them.

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