kollenchyma

Kollenchyma is a type of plant tissue that provides structural support and strength to the plant. It is found in the stems, petioles, and other parts of the plant that require rigidity. Kollenchyma cells are typically dead at maturity, which means they lack a protoplast and are filled with cellulose and lignin. This composition gives kollenchyma its strength and rigidity. The cells are typically elongated and have thickened primary walls, which contribute to the tissue's structural integrity. Kollenchyma is found in dicotyledonous plants and is less common in monocotyledonous plants. It is often found in the outer layers of the stem, where it provides support and protection for the inner tissues. Kollenchyma is also involved in the transport of water and nutrients within the plant. It is a type of sclerenchyma tissue, which is characterized by its thickened cell walls and lack of a protoplast. Kollenchyma is an important component of plant structure and function, providing support and protection for the plant's tissues and facilitating the transport of water and nutrients.