Fungi in the campus
Fungi and fungus‐like organism Halophytophthora (Oomycota)
Ka‐Lai Pang
Institute of Marine Biology
Fungi in the campus
Do you know what they are?
Specimen to observe today
Kingdom Fungi
1. Basidiomycota •Saprobes, parasitic or commensualistic
•Single cell or forming hyphae
•Septated hyphae
•Chitinous cell wall
•Sexual and/or asexual reproductive strategies
• Mushroom (Lentinula edodes, Coprinus sp.) 2. Ascomycota
• Yeast (Saccharomyces cerevisiae) 3. Zygomycota
• Bread mold (Rhizopus sp.)
4. Oomycota
• Halophytophthora sp.
Kingdom Fungi
Five phyla
1. Basidiomycota (e.g. mushroom)
2. Ascomycota (e.g. yeasts)
3. Zygomycota (e.g. bread mold)
4. Chytridiomycota (forming zoospores)
5. Glomeromycota (symbiotic with plants)
Halophytophthora sp. (Oomycota)
• Forming hyphae
• Sexual reproduction: oospores
• Asexual reproduction: formation of zoospores with two flagella in sporangia
• Cellulose cell wall
Basidiomycota
Basidiomycota‐Lentinula edodes
1. Appearance
cap
stipe
Basidiomycota‐Lentinula edodes
Basidiomycta‐Coprinus sp.
2. Vertical section 3. Observe the permanent slide showing section of the gills with basidia and basidiospores
cap
gills
stipe
Draw
Basidiomycota‐Lentinula edodes
4. Take some samples from the cap and the stipe using a forceps and make a slide
 Is there any morphological difference between the mycelia taken from the cap and the stipe?
Ascomycota‐sexual structures
Ascomycota
Draw
Ascomycota‐yeast
5. Make a slide with the yeast suspension provided and observe the reproduction strategy of the yeast
What is the reproduction strategy of the yeast?
Draw
Zygomycota‐Bread mold (Rhizopus sp.)
Zygomycota
6. Observe the permanent slide provided with both sexual and asexual stages
Draw
Oomycota‐Halophytophthora sp.
7. Observe the freshly prepared slide • What is the morphological difference on the hyphae between Halophytophthora and the mushroom?
• Why was Halophytophthora
classified in the Kingdom Fungi?
Draw