noun
- A plant hormone, specifically indole-3-acetic acid (IAA), that promotes cell elongation and growth in plants.
Usage: technical; botany; also called auxin or indoleacetic acid
Examples
- Heteroauxin is produced naturally in plant shoots and roots to regulate growth.
- Scientists applied heteroauxin to seedlings to study its effects on root development.
- The concentration of heteroauxin in the plant tissue determines the rate of cell elongation.
- Heteroauxin was first isolated and identified in the early 20th century.
- Plant biologists use heteroauxin in laboratory experiments to understand plant physiology.