Secondary plant compounds

Definition

Secondary plant compounds are organic molecules produced by plants that are not directly involved in their growth, development, or reproduction. These compounds often serve defensive, protective, or attractive roles in ecological interactions.

5 Must Know Facts For Your Next Test

1. Secondary plant compounds can help protect plants from herbivores and pathogens.
2. They include a wide range of chemicals such as alkaloids, terpenoids, and phenolics.
3. Some secondary plant compounds have medicinal properties and are used in pharmaceuticals.
4. These compounds contribute to the biodiversity of ecosystems by influencing plant-pollinator interactions.
5. Secondary plant compounds can impact soil nutrient cycling and microbial communities.

Review Questions

• What role do secondary plant compounds play in plant defense?
• Can you name three types of secondary plant compounds?
• How do secondary plant compounds contribute to ecosystem biodiversity?

Related terms

Alkaloids: Nitrogen-containing compounds found in plants known for their pharmacological effects.

Terpenoids: A large class of organic chemicals derived from five-carbon isoprene units, used by plants for various ecological functions.

Phenolics: Compounds characterized by the presence of phenol units, playing crucial roles in defense against stressors and pathogens.