BIOL 1030 Chapter Notes - Chapter 31: Black Bread Mold, Armillaria Solidipes, Mycelium

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Scott Kevin

Document Summary

Overview: mighty mushrooms: the honey mushroom armillaria ostoyae in malheur national park in eastern oregon is enormous. Concept 31. 1 fungi are heterotrophs that feed by absorption. Extensive surface area and rapid growth adapt fungi for absorptive nutrition: yeasts are single-celled fungi. In many fungi, the haploid nuclei do not fuse right away. In some species, heterokaryotic mycelia become mosaics, with different nuclei remaining in separate parts of the same mycelium or mingling and even exchanging chromosomes and genes. In some fungi, the haploid nuclei pair off two to a cell, one from each parent: such a mycelium is called dikaryotic, meaning two nuclei. If this is true, flagella were lost on more than one occasion during fungal evolution. In the asexual phase, hundreds of haploid spores develop in sporangia at the tips of upright hyphae: some zygomycetes, such as pilobolus, can actually aim their sporangia toward conditions that would be favorable for their spores.