HORTICULTURE

Detailed explanation-1: -Sclerenchyma is a type of simple permanent tissue. They have thick walls due to the deposition of lignin on their cell wall. Fibres are elongated thick walled cells which have pointed ends. Since they have very thick cell walls due to the deposition of lignin, they have very narrow lumen.

Detailed explanation-2: -Sclerenchyma is a plant tissue providing mechanical stiffness and strength. Fibres and sclereids are the main types of sclerenchyma cells. Most sclerenchyma cells show intrusive growth. The cell walls of sclerenchyma have thickened secondary layers made from cellulose, hemicelluloses and lignin.

Detailed explanation-3: -Commercially useful leaf fibres include abaca, cantala, henequen, Mauritius hemp, phormium, and sisal.

Detailed explanation-4: -The main function of sclerenchyma is to provide mechanical support and strength to the plants. They provide structural support to the plant organs. They form protective coverings around nuts and seeds. They are also a part of vascular bundles and form conductive tissues.