MICR 3220 Lecture 17: Lecture 17
15 Jan 2019
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Friday october 19 t h lecture 16: Fungi are more metabolically active than the plants are so they get higher levels of copper toxicity because they ingest more of it. The last case of late blight occurred in 1916 in germany, where 708,080 people were killed. This was in the middle of world war one, copper was the ingredient in the fungicide, but copper was also a key ingredient in armor and thus there was insufficient copper. Powdery mildew: most of the fungus is on the outside of the leaf. Wide range of plants that get powdery mildew, but since it is a biotroph there is specificity within the powdery mildews: erysiphe graminis: grows on the cereals (wheat and barley etc. ) Subspecies fsp. (meaning specialized form) horde this subspecies attacks barley: germination stage: Conidia: spread around through air and wind (sedimentation, impaction). The conidia have a germ tube and an appressorium and germination/penetration occurs quickly.
