Types of Plant Tissues

Plants do not have the same tissues as humans, and their movement is limited. Plants require dead tissues for mechanical support, hence they do not require living tissues. Plants have two types of tissues: those that divide and those that do not divide. Plants do not grow uniformly throughout their bodies; instead, growth is restricted to some areas, which contain tissues that can divide. Plant tissues can be divided into plant tissue systems, each of which performs a specific purpose.

A plant tissue system is a functional unit that connects all of a plant’s organs. The plant tissue system is also divided into different tissues based on their functions. Plant tissues are divided into Meristematic tissue and Permanent tissues based on their ability to divide.

Meristematic Tissue

Made up of a group of cells with the ability to divide. They are small, cuboidal, densely packed cells that divide to generate new ones. These tissues can stretch, enlarge, and differentiate into other types of tissues. Meristematic tissues are classified into three groups based on their location:

• Apical meristems
• Lateral meristems
• Intercalary meristems

Permanent Tissue

These tissues have lost their ability to divide and are produced from meristematic tissues. They have reached their mature state. They are further classified into two types:

• Simple
• complex

Simple Permanent Tissue

These are made from Parenchyma, Collenchyma and Sclerechyma.

Parenchyma

Found in the soft sections of plants such as roots, stems, leaves, and flowers. Tissue cells are loosely packed and have wide intercellular spaces between them. A vacuole is located in the centre of each cell. Storage, photosynthesis, and helping the plant float on water are all activities of parenchyma tissues.

Collenchyma

Cells have stronger cell walls than parenchyma cells. They are intended to offer mechanical support to the plant structure in areas such as the leaf’s petiole.

Sclerechyma

This tissue’s cells are dead. They are stiff and have thick, lignified secondary walls. Their primary role is to offer strength and support to plant sections.

Complex Permanent Tissue

Made up of several types of cells, as opposed to simple permanent cells. Plant vascular bundles contain complicated permanent tissues called xylem and phloem. Xylem was created by tracheids, vessels, xylem parenchyma, and xylem fibres. Tracheids and vessels are hollow tube-like structures that let water and minerals move.

Tissues are like the fabric of our body. The term means “woven.” When two or more tissues combine, they form our organs. Our kidneys, lungs, liver, and other organs are all made of different types of tissues. But what function a certain part of our organ performs, depends on what kind of tissue it’s made of. This is the tissue that lines, covers, and generally organizes our body, creating order during the disturbance in the body.