What are cutins?

Cutins are hydrophobic biopolymers primarily composed of long-chain fatty acids and glycerol, forming a protective layer known as the cuticle on the surfaces of plant leaves, stems, and fruits. This waxy coating helps prevent water loss, protects against pathogens, and provides a barrier against environmental stresses. Cutins are crucial for maintaining plant health and efficiency in water use, especially in arid conditions. They also play a role in plant signaling and interactions with microorganisms.