Definition
phytochrome
noun
- A light-sensitive protein found in plants that regulates growth and development in response to light, especially red and far-red light wavelengths.
Usage: biology; botany
Examples
- Phytochrome helps plants detect whether they are in sunlight or shade.
- The phytochrome protein exists in two interconvertible forms depending on light exposure.
- Seeds use phytochrome to determine if conditions are suitable for germination.
- Phytochrome plays a crucial role in the flowering process of many plant species.
- Scientists study phytochrome to understand how plants sense their environment.