Biology 342• Prerequisite – Biol 204 or permission• Requirements – Kendrick (text), lab manual,

dissecting kit, lab coat recommended• http://www.usask.ca/biology/kaminskyj/342/lectures/• Format – lectures, student presentations, field

collection, lab collection and experiments, lab reports, midterm, final exam

• Lab demonstrator – Krista Anderson

Field trip Emma Lake Sept 11th

• 830am departure, all day trip– Collection and field characteristics– Return to lab and lay out samples for spore

prints– Remainder of specimens to 4°C and -20°C

Supplies for the field trip

• Field clothes, footwear, hat, raingear• Sunscreen, insect repellent• Clipboard, pencil, notebook• Trowel or spoon, knife (P)• Wide baskets (P), paper bags (P), waxed paper (P)• Field guides (P)• Camera, GPS

More admin details

• List of names and email addresses

• Class pictures – probably during the first lab period

• Signup for literature presentation

Basic fungal facts

• Domain?– Subdomain?

• Mode of nutrition – auto/heterotrophic?

• Mode of nutrition – ingestive/absorptive?

• Reproduction?

Major groups of fungi

• True fungi – eukarya

• Other fungi –

Compare/contrast major groups of fungi

• Ascomycetes

• Basidiomycetes

• Zygomycetes

• Chytridiomycetes

• Oomycetes

• deuteromycetes

PloidyNutrition

Saprotrophy/pathogenesis/symbiosis

Examples

Predominant growth mode of fungi – ??

• Consequences• Modular design

• Internal transport

• Totipotency

• Proliferation through sporulation

Morphogenesis – form generation

• Animals control body form using– cell division commitment and division plane

control– cell migration, – cell differentiation, – regulated cell death

• Determinate growth

Plant morphogenesis

• Plants control body form using – cell division commitment and division plane

control– cell differentiation– regulated cell death (e.g. for leaf abscission) to

control body form

• Autotrophs, so reduced need to translocate

• Growth is indeterminate

Fungal morphogenesis

• Fungi are heterotrophic but walled – use directed growth to find nutrients

• Unlike animals/plants, fungi are generally small, so gravity is seldom a major factor

• Exceptions?

Gravity as a morphogenetic factor

Morphogenic factors include

• Turgor

• Surface tension

• Surface chemistry

• Light

• Competition

Ecological roles of fungi

• Saprobic -- recycling

• Pathogenic -- disease

• Mutualistic --