Mushroom Strain Isolation
Most mushrooms produce spores. When a mushroom spore germinates, the mycelium that emerges from the spore generally has one nucleus per cell, and we refer to this as hyphae, or monkaryotic mycelium. When hyphae that emerged from two individual spores of the same species cross paths, if they’re compatible, they join together to exchange DNA between them. The resulting mycelium generally has two or more nuclei per cell, and is referred to as dikaryotic mycelium. This mycelium, formed from two separate hyphae, is the very definition of a strain.
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The full release of our DVD “Let’s Grow Mushrooms!” demonstrates this process visually, showing you the Petri dish cultures before and after the transfers.
Enjoy the clip. Remember, this is only a sample clip pieced together from several sections of this chapter.
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