EEMB 3 Lecture Notes - Lecture 5: Thomas Cech, Phytophthora Infestans, Stratum
18 Apr 2019
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1) most abundant organisms in the biosphere -- contains enormous amount of biomass. 95% of ocean is microbial vs. macrobial. Macrobes only have 2 distinct physiologies photosynthesis (chloroplasts) & heterotrophs (mitochondria) Ammonia oxidizers, iron oxidizers, sulfate reducers, sulfur oxidizers. Agriculture, n2 fixation, nutrient cycling, energy, food preservatives, etc. Van leeuwenhoek used crude microscope first to observe bacteria & protists. Most early work focused on issues directly related to humans. Q: microscopy is one of the fundamental technologies used in microbiology. Development of optics lead to appreciation & advances in microbiology. Resolution ability to detect distance apart 2 objects to distinguish them as separate. Magnification increasing = no more info. Found that raising temperature of wine = knocks out contamination that was microbial. Chance favors the prepared mind understand why something is a mistake. Proved that microbes were responsible for biodegradation. Showed that different microbes produced different waste products. Worked on theory & practice of vaccination.
