BIOL 1902 Lecture Notes - Lecture 15: Obligate Parasite, Monotropa Uniflora, Phototropism
15 Aug 2018
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Most plants are autotrophic = they can make their own food. Heath family: survive because of fungal partners underground on the roots: bring in nutrients in return for plant sugars = mycorrhizae (symbiotic) endo if inside, orchids as well, black spruce trees. Ectomycorrihzae are outside roots increase uptake of n and p prevent uptake of toxic compounds. Root nodules with bacteria that transforms nitrogen into fix nitrogen the plant can use. Some plants eat animals: sundews (carnivorus) modified leaf pad that have hairs with glue to catch things called adhesive traps. Leaf then folds over and releases enzymes to digest bugs. Modified leaf with little drops of nectar to entice insects. Walks inside leaf and falls into water and (cid:272)a(cid:374)"t get out fro(cid:373) sloped (cid:449)alls a(cid:374)d hairs poi(cid:374)ted the (cid:449)ro(cid:374)g (cid:449)ay. Digesti(cid:448)e e(cid:374)zy(cid:373)es released: larvae can survive in liquid and then eat others that die in it.
