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FUNGI NOTES - and fuse Plasmogamy – fusion leads to the...

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Hyphae – fungi roots(absorb nutrients) Haustoria – extract nutrients or exchange them with fungi’s host. Mycorrhizae – mutually beneficial relationship btw fungi and plant roots. Mycelium – large concentrated area of hyphae Septa (septum ) – walls in between the cells of fungi. Have holes that allow movement of ribosome, mitochondria, and even nuclei to flow btw cells. Coenocytic Fungi – fungi that lack septa! Due2 division of nuclei w/o cytokinesis. Ectomycorrhizal fungi – hyphae over the surface of the roots and into the root cortex Arbuscular mycorrhizal fungi – extend hyphae through root cell wall and tubes. Sexual & Asexual reproduction Sexual - hyphae from 2 mycelia release pheromones. If diff., pheromones bind to receptors on opposite hyphae. Hyphae extend to each other
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Unformatted text preview: and fuse. Plasmogamy – fusion leads to the sharing of cytoplasm, nuclei don’t fuse spontaneously. Nuclei coexist separately. ( Heterokaryon ) In some species, haploid nuclei pair up by 2 into a cell = Dikaryotic . Haploid nuclei divide Asexual – can asexually reproduce through molds and single celled yeasts. (cell division) . No sexual states. Karyogamy – fusion of nuclei (haploid) = diploid nuclei, meiosis then makes diploids again. Chytrids – ubiquitous in lakes and soil. Decomposers while others are parasites of protists, other fungi plants or animals. Zoospores – flagellated spores obtained by chytrids....
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