Trichomes

Definition

Hair-like structures found on various plant surfaces, often serving diverse roles such as defense, nutrient acquisition, and communication.

Etymology

From Greek 'trichos', meaning 'hair'.

Example

Trichomes on tomato plants deter herbivorous insects by producing chemicals that are toxic or repellent.

Related Terms

• Glands
• Defense
• Nutrient acquisition

Usage Notes

Trichomes can be classified as glandular (producing secretions) or non-glandular (simple hairs). They vary greatly in morphology and function across plant species.