Pectin plays multiple roles in plant cells, including:
1. Cell Adhesion: It helps in binding cells together within tissues. 2. Growth and Development: Pectin regulates cell wall expansion and plant growth by modulating the cell wall's mechanical properties. 3. Defense: It acts as a barrier against pathogenic attacks. 4. Signaling: Pectin fragments can act as signaling molecules to trigger plant responses to various stimuli.
