What tissues and structures of plants are formed only by dead cells?

Some plant tissues are made up of dead cells. This does not affect the performance of their functions. For example, wood. It acts as a conductor of water through the plant’s body. Also, vessels perform this function in plants. Not all plants have wood. Then the vessels perform the conducting function. Also, plants have a cork. It is an integumentary tissue that is made up of dead cells. Of course, these tissues are formed by living cells, but after they die off, they continue to perform their function and are not replaced by new cells.