In this article we will discuss about the arrangements of primary tissues in roots. A cross-section of root reveals the epidermis, cortex and vascular cylinder. Epidermis: Epidermis of root is also referred to as epiblema or rhizodermis as it differs from that of shoot in origin, structure and function. Epidermal cells are compactly set, elongated, and thin-walled with thin cuticle [...]
The upcoming discussion will update you about the difference between monocotyledonous root and monocotyledonous stem. Difference # Monocotyledonous Root: 1. Internally it is differentiated into epiblema, cortex and stele. 2. Epiblema is uniseriate or multiseriate (e.g. velamen of orchid root), lacks cuticle and stoma, and provided with unicellular root hairs. 3. Cortex is commonly parenchymatous, the peripheral layers of which [...]
Here is a list of sixteen types of roots found in plants. 1. Root of Cicer arietinum (Gram. Subfamily: Papilionaceae): The transverse section of root is more or less circular in outline and shows the following internal tissues from periphery towards the centre (Figs. 31.29, 31.29A). Epidermis: It is also called epiblema or piliferous layer. It is uniseriate and composed [...]