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Vegetative structures of fungi
Molds/fleshy fungi, yeasts, dimorphic fungi
Structure of molds/fleshy fungi
Thallus: body
Hyphae filaments
Structure of yeasts
nonfilamentous
unicellular
divide by budding
dimorphic fungi
yeastlike at 37*C, mold like at 25*C
Asexual reproduction of fungi
germinate via spores and detach from parents
Sexual reproduction of fungi
Plasmogany
Karyogamy
Meiosis
Plasmogany
Donor (+) penetrates recipient cell (-)
Karyogamy
Donor and recipient fuse to form zygote
Meiosis
diploid produces haploid
Economic benefits of fungi
Aspergillus niger
Aspergillus terreus
S. cerevisiae
Trichoderma
Taxomyces
Aspergillus niger
production of citric acid
Aspergillus terreus
inhibit cholesterol synthesis
S. cerevisiae
bread, wine, Hep B vaccine
Trichoderma
cellulase enzyme production
Taxomyces
taxol (chemotherapy agent)
Life cycle of protozoa
Active: trophozoite
Stagnant: resistant cyste
Intermediate host
Mosquito transmitting malaria to humans
Lichen structures
Thallus
Medulla
Rhizines
Cortex
Thallus
body
medulla
hyphae filaments
rhizines
hold fasts
Cortex
protective coating