@BonsaiMobius I think you got enough roots to sustain the tree, and dug at the right time. If you didn't wire it in to the pot at collection, secure it tightly to the pot now by some external means. You don't want it to move in that pot...at all. I'd crumble some sphagnum moss on the soil surface, and mist the foliage and live vein on the trunk every time you look at, but go very easy on watering...like every 3-4 days. Looks like you're using Clay King soil. Its good stuff for this, porous, but retentive enough.
You'll know how the tree is doing in a few weeks. If
interior foliage turns yellow and starts to drop, while the tips of the shoots stay green, it's really a good sign; it is responding to the transplant. Keep doing what you're doing and it should live. If all the foliage turns dull gray overall, it isn't responding, and is probably dead. Keep good pix handy from when you collected it so you can compare the foliage condition over the next few weeks.
Good luck, it's really fantastic material. If you're new, this
is the right way to start bonsai.
I dug 4; gave one to a friend and still have 3. One is being grafted with Itoigawa, the other two are just waiting for me to have the time and inspiration on the same day to tear into them. Yes; I would sell any or all of them, for local pickup.
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I do not worry about mycorrhizae, good soil and watering habits are what really matter. The fungi responsible for this symbiotic relationship are already in the soil, or remain in sufficient quantity on the roots, and are in the air. What's necessary will colonize the pot in time. This is more visually apparent with pines than other species.