01:119:101 Lecture Notes - Lecture 2: Glomeromycota, Basidiocarp, Zygomycota
8 Dec 2015
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Document Summary
Heterotrophs: feed through absorption, enzymes to break down complex molecules into organic ones, different roles in ecological communities, parasitic, mutualistic. Iii sexual reproduction: fungi used to extract or exchange nutrients with their plant hosts a. Improve delivery of phosphate ions and other minerals to plants, and plant supplies fungi with organic nuterients such as carbs: extremely important almost all vascular plants rely on them. Mycelia release sexual signialing molecules called pheroments. If mycelia are of 2 different mating types they will bind and hypae extend toward the source of pheromones. Hyphae meet each other anf fuse union called plasmogamy: haploid molecules coexist when it fuses, mycelium is said to be heterokayron. Heterokaryotic refers to cells where two or more genetically different nuclei share one common cytoplasm. Dikaryotic is having two different and distinct nuclei per cell: next stage is karyogamy haploid nuceli producing a dipoid cells.
