>>985212Yes, you can transplant, but that is not the right way to think of it. The mushroom is a tiny part of the whole organism, basically think of it like the mushroom is an apple, and something called mycelium is the tree. The worlds largest living organism is a mycelial web in eastern Oregon that spans 9 acres. It is thousands of years old, and weighs thousands of tons. However, the mushrooms it puts out are only about 4 inches tall. The mycelium is the actual organism, the part that does the eating, excreting, and growing. Mycelium is a web of threadlike cells, similar to roots. (but it plays the role of a stomach) When you "transplant" (we use the term clone) you move mycelium from one place to another, making sure to put it in a place where it isn't competing with mold/bacteria, and that it has plenty to eat (sawdust usually). The main difficulty is the mold/bacteria part. The things that mushrooms eat, molds love to eat too, and they will actively compete until the mycelium starves out.
In this picture of a button mushroom bed, the white mycelium has completely eaten up (colonized) the horse manure substrate. After it has colonized the substrate, it completes its lifecycle by putting out mushrooms, which we intercept and consume. The mushroom is the end point, when you are growing mushrooms, you are really caring for mycelium.