Fungal cell morphology

Question 1

What are hyphae?

Answer 1

branches in the fungi structure

Question 2

what are the two types of hyphae structure?

Answer 2

branching

non-branching

Question 3

what are septate walls?

Answer 3

visible internal cross walls

Question 4

what are aseptate walls?

Answer 4

no internal cross walls

Question 5

what are the two types of asexual spores?

Answer 5

Sporangiospores

conidia

Question 6

what are the types of conidia?

Answer 6

• microconidia
• macroconidia
• chlamydospores

Question 7

what are microconidia?

Answer 7

small spores attached directly to hyphae

Question 8

what are macroconidia?

Answer 8

large multi-cellular spores attached directly to hyphae, often septate

Question 9

what are chlamydospores?

Answer 9

thick double-walled spores capable of surviving adverse conditions

Question 10

what are conidia?

Answer 10

• asexual spores which can form in chains found externally on hyphae or conidiophore
• formed on both aerial and vegetative hyphae (mycelium- the intertwined mass of hyphae that forms the fungal colony)

Question 11

what are sporangiospores?

Answer 11

• primitive fungi produce spores in a sac-like structure called a sporangium within which asexual spores (sporangiospores) form by cytoplasmic cleavage
• the sporangiophore is the specialised hyphal stalk which bears the sporangia
• produced by Zygomycota
• can be either naked and flagellated (zoospores) or walled and non-motile (aplantospores)