Difference Between Primary and Secondary Mycelium

The key difference between primary and secondary mycelium is that primary mycelium develops from fungal spores when they mature and form germ tubes while secondary mycelium forms from sexually compatible hyphae when they conjugate during the sexual reproduction.

1. What is secondary mycelium?
2. What is the difference between a Hypha and a mycelium?
3. What is tertiary mycelium?
4. What are the types of mycelium?
5. What does a mycelium with two nuclei form?
6. Do Basidiomycetes reproduce asexually?
7. What are two function of mycelium?
8. What are the two types of hyphae?
9. Which type of fungi is most likely to cause a disease?
10. What does Basidium mean?
11. How many Basidiospores are found on each Basidium?
12. Which Hyphal feature is key to the way a fungal mycelium obtains food?

What is secondary mycelium?

A secondary mycelium forms upon conjugation of two sexually compatible hyphae. The secondary mycelium is dikaryotic, in that it has two haploid nuclei, one from each parent. ... Sexual reproduction of the club fungi begins upon fusion of two primary hyphae to form a club-shaped structure, known as a basidium.

What is the difference between a Hypha and a mycelium?

The hypha is the building block of a fungus. On the other hand, mycelium refers to the collection of hyphae in a fungus' body. 2. Hyphae are often described as strands, threads, or filaments because of their appearance.

What is tertiary mycelium?

Tertiary mycelium is highly coiled secondary mycelium, a dikaryon. The presence of basidia is one of the main characteristic features of the Basidiomycota. A basidium usually bears four sexual spores called basidiospores; occasionally the number may be two or even eight.

What are the types of mycelium?

Mycelium may be of two types:

• Septate: Mycelium that is divided into discreet cells by cell walls that are laid down at regular intervals along the length of the mycelium. These cell walls are called septa (sing. ...
• Coenocytic: Mycelium that is not divided up by septa and forms a continuous tubular network.

What does a mycelium with two nuclei form?

This mycelium is coined "dikaryotic" meaning 2 nuclei. The haploid nuclei contributed by each of the two parents fuse producing diploid cells. These diploid cells then undergo meiosis to produce haploid cells which in turn turn into spores that disperse and create new mycelia.

Do Basidiomycetes reproduce asexually?

Basidiomycota reproduce asexually by either budding or asexual spore formation. Budding occurs when an outgrowth of the parent cell is separated into a new cell. Any cell in the organism can bud. Asexual spore formation, however, most often takes place at the ends of specialized structures called conidiophores.

What are two function of mycelium?

Lesson Summary

After joining, the two mycelium are capable of creating a fruiting body that produces a mushroom. Then, mycelium can continue to forage for nutrients and water to create biomass and grow. Mycelium extend the area in which a mushroom or fruiting body can acquire nutrients.

What are the two types of hyphae?

There are two main types of hyphae. Septate hyphae have walls that separate individual cells, while coenocytic hyphae are one long continuous cell without walls.

Which type of fungi is most likely to cause a disease?

There are two main species that cause disease: Cryptococcus neoformans and C. gattii. These fungi rarely cause infections in healthy individuals but can be very serious for individuals with compromised immune systems, such as those with HIV/AIDS. Infection generally occurs when someone breathes in the fungus.

What does Basidium mean?

: a structure on a basidiomycete in which karyogamy occurs followed by meiosis to form usually four basidiospores.

How many Basidiospores are found on each Basidium?

Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. Typically, four basidiospores develop on appendages from each basidium, out of these 2 are of one strain and other 2 of its opposite strain.

Which Hyphal feature is key to the way a fungal mycelium obtains food?

A thin filamentous shape is key to the way a fungal mycelium obtains food. -Hyphae (singular: hypha) are the filaments within a mycelium. As the figure shows, hyphae are long, narrow filaments that branch frequently.