Biology 3218F/G Lecture Notes - Lecture 23: Compost, Agaricus, Lignocellulosic Biomass
20 Sep 2016
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This is the mushroom, and right are their shoestrings (aka rhizomorphs, like linear sclerotia) After shoestring root rots kill this tree, it can persist for decades and then infect another tree nearby. How to get to next tree: putting a lot of hyphae on one cord or one rhizomorph gets a lot of energy funneled to a target very effectively. Athelia: this is a fb, sexual stage of sclerotium rolfsii ; tiny patch (1-2mm) on surface of soil would be similar fb of rhizoctonia. There is a whole group of fungi that have a simple fb, but they"re not evolutionarily related. Simple fruiting body has arisen multiple times amongst different groups of fungi. Figures on bottom: fruiting bodies of wood decayers. Agaricomycetes are the primary group of fungi that can decay ligno-cellulose, lignin being the key thing holding the cellulose fibers together. A lot of organisms can digest cellulose but not if its bound with lignin.
