Plerome represents the inner region of the apical meristem. It consists of thin-walled cells that serve as precursors for stele including the pith. The stele represents the part of the stem and root present inside the cortex.

Where do dermatogen Periblem and plerome occur?

The meristem at the apex consists of:The outermost layer, called the Dermatogen. ->Inner to dermatogen, lies the Periblem. ->The central region is called the Plerome.

What is produced from plerome?

-Plerome: It forms the central core of a plant and gives rise to t stele. The stele consists of vascular tissue, pith, and pericycle. The cells of the plerome develop into procambium to form the vascular bundles. So, the correct answer is 'Meristematic tissues'.