MICR 3220 Lecture Notes - Lecture 2: Magnetic Ink Character Recognition, Cell Division, Chlorosis
30 Dec 2015
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Document Summary
Pathogens is a living organism that is the primary cause of disease. Symptoms are the visible defect of the pathogen: pathogen causes it first but has not visible effect until the get need serve enough. Plant disease is a malfunction of a plant cells and or tissues that result from a continuing irritation by a pathogen that leads to the development of symptoms. On fruit prevents storage: mosaic different colours form in different areas on a plants, chlorosis- loss of chlorophyl, yellowing leave, for example( kinda looks like camouflage) Whole plant can turn yellow or only certain parts. Affects storage: cankers lesions on stems or branches (conductive tissue, dieback similar to blight but the growing tip of the plant is where the blight is occurring. Wilting plant part that looks like it is lacking water: microorganism is blocking the flow of water, no matter how much.
