Summary: Applied And Environmental Microbiology

Read the summary and the most important questions on Applied and Environmental Microbiology

• 1 Week 1

• 1.1 Microbial ecology

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• What does microbial ecology look at?

  What microbes do, why they do it and with what and whom they do it

• What are different resources that govern microbial growth in nature?

  Carbon, nitrogen, electron donors and acceptors and macronutrients

• What are different conditions that govern microbial growth in nature?

  Temperature, water potential, pH, O2, light presence and osmotic conditions

• What layers does an aquatic environment generally consist of?

  Epilimnion, thermocline zone and hypolimnion

• What are oxygen minimum zones?

  Persistent layers in the water column that have low a oxygen concentration

• What are deep sediments of water characterized by?

  Extremely low fermentation and methanogenesis

• Why can a tiny distance change a lot for microbes?

  Since they are very small and a different niche can occur at a mm scale

• What happens when the substrate concentration limit is removed?

  Eutrophication, so one species dominates

• What parameters matter for substrate competition?

  Rates of nutrient uptake, metabolic rates, growth rates, affinity for substrates and the efficiency of energy consumption

• 1.2 FISH

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• What is Fluorescence in situ hybridization (FISH)?

  A method used to directly detect and quantify the microbial cells present in a habitat