MICR 2420 Lecture Notes - Lecture 3: Petri Dish, Lynn Margulis, Bunsen Burner
2 Oct 2018
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Document Summary
Metabolic and environmental diversity is high in bacteria and archaea. Crude oil spill can cause degrading of bacteria: which is false. * 1/4 of the world bacteria is pathogenic. Most research in microbiology is regarding bacteria that can affect health. Vast majority are essential to the biosphere e. g nitrogen fixation by bacteria. We have only grown and isolated 1% of bacteria and areachea. Bacteria have helped with evolution by transduction by bacteriophage, chromosomal insertions by latent viruses. New e. coli strains can be deadly and kill people ( developed by evolution through viral transduction: which statement is false. Three major domains : archaea, prokaryote and eukaryote (midterm) Grow at temperature higher than 100 degrees. Can use iron as an energy source (lithotrophs : use chemicals/inorganic substances as an energy source) Produce & consume greenhouse gas (co2, ch4, no2) Archaea can produce methane (grow in the guts of cows)
