Microbiology overview Lecture #8 February 8, 2001

Ruminant digestion:

Rumen, reticulum, omassum, abomassum

Fistula studies

Innoculation of best strains for cellulose degradation

Monensin (CO2;CH4 minimized), volatile fatty acids, microbial dead bodies

Creating/studying synchronous cultures

Exponential growth; growth phases; death phase studies

Chemostats, turbidostats, and windshield wipers

Oxygen: advantageous/necessary/toxic

Liebig's "law" of the minimum: "...growth of a plant is dependent on the amount of foodstuff that is presented to it in minimum quantity."

Selenium: toxic, essential, or anticancerous?

Cardinal growth temperatures

Total counts (dry weight, turbidity, microscopic enumeration, electronic)

Viable count (pour plate, spread plate, membrane filtration, MPN)

What's going to be on the test?