BIO SCI 94 Lecture Notes - Lecture 15: Molecular Phylogenetics, Dikaryon, Carbon Cycle

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Brandon Stuart Gaut

Document Summary

Mushroom hunting: 250 species in san francisco park, 100,000 known species of fungi, estimated 1. 5 million species, 275,000 flowering plant species. Fungal morphology: yeast - unicellular, multicellular fungi have filamentous structures called mycelia, structure of the mycelium, the filaments that make up mycelium are called hyphae. *from textbook: vast majority of the mycelium lives underground, mycelia have a high ratio of surface area to organismal volume, this makes sense b/c the food is absorbed, more surface area --> more efficient absorption. Fungal life cycle: can reproduce by asexually producing spores, but can also reproduce sexually, asexual = spores via mitosis, sexual = spores via meiosis. In this case, it"s dikaryotic (2 nuclei: will not be genetically identical to the parents, spores are like seeds; they don"t need to grow until the right conditions come. Types of fungi: reproductive structures: 4 types of fungi, chytrids, make swimming gametes.