Hyphae

Definition

Hyphae are the long, thread-like structures that make up the mycelium of a fungus. They are important for nutrient absorption and growth.

5 Must Know Facts For Your Next Test

1. Hyphae can be septate (with cross-walls) or coenocytic (without cross-walls).
2. They grow at their tips, allowing fungi to efficiently explore and exploit new food sources.
3. The main function of hyphae is to absorb nutrients from the environment.
4. Some hyphae form specialized structures like haustoria for parasitic interactions with plants.
5. Hyphal branching increases the surface area available for nutrient absorption.

Review Questions

• What are the two types of hyphal structures based on the presence or absence of cross-walls?
• How do hyphae contribute to the growth and nutrient acquisition in fungi?
• What specialized structure might a parasitic fungus develop from its hyphae?

Related terms

Mycelium:

A network of hyphae that forms the vegetative part of a fungus.

Septate Hyphae: Hyphae with cross-walls separating individual cells.

Coenocytic Hyphae: Hyphae without cross-walls, making them multinucleate.