The primary root tissues include the epidermis, cortex, endodermis, pericycle, and the vascular tissues (xylem and phloem).
Epidermis: The outermost layer of cells that provides a protective barrier. Cortex: A layer of cells beneath the epidermis that stores food and water. Endodermis: A selective barrier that regulates the passage of substances from the cortex to the vascular tissues. Pericycle: A layer of cells just inside the endodermis that can give rise to lateral roots. Vascular Tissues: Comprising xylem and phloem, these tissues are responsible for the transport of water, nutrients, and food.
