MIP 300 Lecture Notes - Chemotroph, Primary Nutritional Groups, Thiobacillus
27 Jun 2014
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Modify substances for use by others: c, n, s, fe, metals. Produce microbe inhibiting substances: limit survival of plants and animals. The carbon cycle: note there are microbes that can digest every known carbon source, e. g. gasoline, concrete, anything you can think of. Autotrophs create organic material heterotrophs use organic material, create co2 autotrophs use. Photosynthetic and chemolithotrophic autotrophs fix co2 into organic molecules, e. g. sugar. Many microbes (bacteria, protozoa, algae) fix co2 into organic materials (photosynthesis or chemolithotrophy) Many soil microbes (bacteria, yeast) fix n2 into nh3(anaerobic respiration), which is incorporated into amino acids by microbes and plants. Urine, decay by microbes, fungi and bacteria nh3. Plants use nh3 or no2 to make amino acids, animals eat, get amino acids. Paper companies use mercury to control microbes, released in h2o waste, u. s. , Anaerobic bacteria methylated mercury, became volatile and lipid soluble. Fish ate bacteria, mercury accumulated, people ate fish, mercury poisoning: biomagnification.
