Photomicrograph showing collenchyma in the T.S. of a dicot stem X100

Information about collenchyma :

1. Collenchyma cells are elongated cells with tapering ends.

2. They are located in the outer regions of cortex, angles of stems, midrib of leaves.

3. They are similar to parenchyma, but there is depositionof extra cellulose at the corners of the cells. Deposition occurs after the formation of the primary cell wall.

4. In order to give strength to the organ, they line parallel to the longitudinal axis of the organ in which they are found.

5. They are important in young plants where secondary growth does not occur because they can supplementing the effects of turgid parenchyma in support.

6. They are the first of the strengthening tissue to develop in the primary plant body.

7. They are living and can grow and stretch without imposing limitations of the growth of the other cells.