I'm sorry that I didn't take a picture of the resulting cut. This is the cut with a coating of super glue gel. There was still lots of brown in the vascular bundle. Incidentally, the usual place that new roots form in cactus cuttings is somewhere at the edge of the cutting. This is true of both not super glued and superglued cuttings. The epidermis of a cactus has very many cells that can de-differentiate into more roots or new growing points. This may seem like these roots are therefore not connected to the vascular bundle, but I believe this isn't true. It's just harder to see the connection. Roots need to communicate with the vascular bundle.
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