Biology 3218F/G Lecture Notes - Lecture 10: Cantharellus, Square Inch, Basidium
20 Sep 2016
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Mushroom is just the fruiting body, which develops from a mycelium from the ground, which is connected to roots of trees. Plant produces sugars for fungus; fungus explores soil for nitrogen, water, nutrients to deliver to plant. Boreal forests would not exist without these fungi. Conifer in this case delivers sugars to mycelium to feed mushroom. Fall is when trees send a lot of their sugars for storage in winter time; some of it is siphoned off to the mushrooms that eats a lot of the sugars to produce big structures. We see a long root, which is anchoring the tree, and lateral roots (aka short roots) are stumpy and dichotomously divided (particularly in pines) Divided because of the association of the fungus; fungus produces plant growth hormones (auxins) which causes the branching. Short roots are where the fungus mantles are concentrated. Primarily, no mantles on the long root portion (unlike the drawing)
