Conidia

Definition

Conidia are asexual, non-motile spores of fungi that are produced externally on specialized structures called conidiophores. They play a crucial role in the reproduction and dispersion of various fungal species.

5 Must Know Facts For Your Next Test

1. Conidia are responsible for asexual reproduction in many fungi, allowing rapid propagation without the need for sexual recombination.
2. They are typically formed on the tips or sides of specialized fungal structures known as conidiophores.
3. Conidia vary widely in size, shape, color, and septation (the presence of cross-walls within the spore).
4. These spores are often disseminated by air currents, water, or living organisms, facilitating widespread dispersal.
5. In some pathogenic fungi, conidia can be infectious agents that contribute to disease spread.

Review Questions

• What role do conidia play in the life cycle of fungi?
• Describe how conidia differ from other types of fungal spores.
• How are conidia typically dispersed in the environment?

Related terms

Conidiophore: A specialized fungal structure that produces and supports conidia.

Sporangium: A structure found in some fungi where spores are produced by mitosis or meiosis.

Hyphae:

The long, branching filamentous structures of a fungus that collectively form the mycelium.