BIOA02H3 Study Guide - Final Guide: Glomeromycota, Hypha, Karyogamy

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BIOA02H3 Full Course Notes
43
BIOA02H3 Full Course Notes
Verified Note
43 documents

Document Summary

Take c sources directly form host, but engage in mutually beneficial interaction by providing service in return (h2/soil nutrients) Infect living organisms; c sources directly from host (neg. impact on host) -/+ Saccharomyces cervisiae; yellow scars show where buds produced (asex. repro. ) N-based polysaccharide; made ingredient of fungi cell walls (vs. plants) Cross walls; partitions some hyphae into cell-like compartments. Pores allow plasm/organelles to move b/w cells. Hyphae cells can form haploid (n) spores; hyphae detach & form new clonal individual. Fusion of hyphae b/w 2 genetically diff. individuals. Fusion of 2 sexually compatible haploid nuclei. Division of 2n cell n progeny ( spores ), following. 2 seq. rounds of nuclear & cellular division. Sex stage: resistant zygospore forms for later germination. Hyphae associated w/ plant roots forms arbuscular mycorrhizas. Sex spores (basidiospores) formed in basidia of prominent fruiting body (basidiocarp, mushroom!) Disease of amphibians; caused by parasitic chytrids spp. (cause of amphibians decline)