Plants do not move, i.e., they are stationary.
Most of the tissues they have are supportive, which provides them with structural strength.
Most of these tissues are dead, as they can provide better mechanical strength than the live ones, and need less maintenance.
Some of the plant tissues keep on dividing throughout the plant life. These tissues are localised in certain regions
Types of Plant Tissues:
Based on the dividing capacity of the tissues, various plant tissues can be classified as growing or meristematic tissue and permanent tissue which have further sub-divisions as explained below:
- Only certain parts of a plant tend to grow. The tissues located in such parts are called meristematic tissues.
- They have the capability to divide themselves and form new tissues. They have thin cell wall made of cellulose. Also have dense nucleus and cytoplasm but lack vacuoles.
- They can further we classify differently based on the areas of the plants where they are located -
- They are responsible for the growth of stems and roots in the plants.
- They are found on the tips of the roots and stems.
- They are responsible for increasing the circumference of the middle part of the stem and hence are found there.
- These tissues are present at internodes or stem regions between the places at which leaves attach.
- Vacuoles are responsible for storage of food in water. The intercalary tissues do not store them. They are rather responsible for manufacturing them.
- Moreover, vacuoles contain sap which provides rigidity to a cell. This property of vacuoles may not allow the intercalary tissues to divide and manufacture new cells. Hence vacuoles are not present in intercalary meristem.