4. Zygomycetes Flashcards
Disease caused by the Zygomycytes
Zygomycosis
Lid lifters
Zygomycetes
Temp at which several Mucor spp. do not grow
37°C
- Aseptate or sparsely septate
- broad hyphae
- sporangiophores long and branched with terminal sporangia
- no rhizoids
Mucor spp.
Causes 50% of all zygomycoses
Rhizopus spp.
Causes 90% of rhinocerebral infections
Rhizopus spp.
Temp for growth of pathogenic spp. of Rhizopus
37°C
- broad, aseptate hyphae
- long, unbranched sporangiophores
- rhizoids produced
Rhizopus spp.
Has colonies similar to Mucor spp.
Rhizomucor spp.
Microscopic:
Intermediate to Mucor and Rhizopus
Rhizomucor spp.
Microscopic:
Short rhizoids
Branched sporangiophores
Rhizomucor spp.
The only clinically significant Absidia spp.
Absidia corymbifera
- broad, aseptate hyphae
- branched sporangiophores and arises in groups of 2-5
- rhizoids produced
Absidia spp.
- sporangiophores are one-celled and round to oval
Absidia spp.
The only known human and animal pathogen of the Cunninghamella spp.
Cunninghamella bertholletiae
- aseptate or sparsely septate broad hyphae
- long and branched sporangiophores
- sporangiophores are erect and form short lateral branches, each of which terminates in a swollen vesicle
Cunninghamella spp.
Orders under the Class Zygomycetes
Mucorales
Entomophthorales
Mortierellales