01:119:116 Lecture 4: Lecture 4 - Fungi

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:116
• Professor: G.Transue

Document Summary

Evolution of fungi --> seq evolution of fungi. Fungal reproduction --> seq, cc fungal life cycles. Evolution of fungi domain eukarya i. ii. iii. iv. Fungi on land before plants (land plants ~470 mya) Divided into 5 groups a. b. c. d. e. Fungi grow best in moist environments due to constant absorption. Parasites: absorb nutrients from cells of living hosts. Mutualists: absorb nutrients from host organisms, but reciprocate to host"s benefit. Hyphae - long, branched, thread-like filaments *fig 31. 2. Grow longer --> allow fungus to expand to new food source. Feeding network that grows around and within food source. Fruiting bodies: complex, multicellular reproductive structure (e. g. mushrooms) masses of hyphae a. b. c. Sometimes adapted for feeding on living animals *fig 31. 4. Haustoria: penetrate plant tissue - parasitic or mutualistic. Fungi absorb soil nutrients, plants provide organic nutrients. Non-motile (don"t have flagella, can"t move on its own) Land in moist place with food --> germinate --> new mycelium.