Biology 3218F/G Lecture Notes - Lecture 19: Ascus, Agaricomycetes, Marchantiophyta
20 Sep 2016
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Document Summary
Most of them are in the ascomycota (19 990) (about 10 are basidiomycota) They"re a symbiosis; fungus grows through soil, wraps itself on a symbiont. Ps partner is either a green alga or a cyanobacterium, or both in some lichens. They produce with photosynthates; lichen produces body that the algae are living in, and is responsible for taking in nutrients from the atmosphere or from precipitation and from water as well. Lichens before were classified very separately as a variety of plant, often considered with the mosses and liverworts (bryophytes), but they"re really fungi. They"re a guild, not an evolutionary group; guild is a group that has the similar nutritional mode or lifestyle. We find them in both asco and basidiomycota so not an evolutionary group. They"ve evolved separately, multiple times, in at least 8 orders of 2 classes of ascomycota; 4 orders of 1 class (agaricomycetes) in the basidiomycota.
