In a vascular plant, the stele is the central part of the root or stem [1] containing the tissues derived from the procambium. These include vascular tissue, in some cases ground tissue and a pericycle, which, if present, defines the outermost boundary of the stele.

According to them, the fundamental parts of a shoot are the cortex and a central cylinder, is known as stele. Thus the stele is defined as a central vascular cylinder, with or without pith and delimited the cortex by endodermis.

In lower vascular plant: Vascular system …or root is called the stele. The simplest and apparently most primitive type of stele is the protostele, in which the xylem is in the centre of the stem, surrounded by a narrow band of phloem. It in turn is bounded by a pericycle of one or two cell layers… Read More

Dec 18, 2024 · Stele refers to the central part of a plant's vascular system, which includes the xylem and phloem tissues responsible for the conduction of water, minerals, and nutrients throughout the plant. It is a structural feature found in the roots and stems of vascular plants.

A stele is the central cylinder or core of vascular tissue in higher plants and Pteridophytes. It consists of the xylem, phloem, pericycle, and medullary rays and pith if present.

A stele is a central tube of tissue in the roots of plants. From: Principles of Soil and Plant Water Relations (Third Edition), 2023

Each stele is a protostele with xylem core surrounded by phloem with pericycle and endodermis. Eg: Selaginella stem II. Siphonostele: It is a modified protostele with a central pith region or medullated protostele.

In this article we will discuss about the evolution of stele in a plant. Stele (= Greek word meaning a column) can be defined as the unit of vascular system that is made up of xylem, phloem, interfascicular tissues, medullary rays, pericycle and pith (if present).

Jan 12, 2025 · The name ‘stele’ has been derived from a Greek word meaning ‘Pillar’. It refers to the different parts of the central region of the roots and stems in the vascular plants. The stelar evolution in pteridophytes is significant as they are the …

stele is protostele. In protostele, the vascular tissue is a solid mass and the central core of the xylem is completely surrounded by the strand of phloem. This is the most primitive and simplest type of stele.