BIOL 371 Lecture Notes - Lecture 18: Aerotolerant Anaerobe, Veillonella, Fecal Microbiota Transplant
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Miniquiz questions and answers chapter 24 (24. 1-24. 8, 24. 10) lecture 18. Heavily colonized body regions: gastrointestinal tract, oral cavity and airways, urogenital tracts, the skin. Cultivation independent studies (nucleic acid sequencing methods: because majority of microorganisms cannot be cultured. In the small intestine: firmicutes, bacteroidetes, and actinobacteria are common in the gastric fluid, while firmicutes, and proteobactria are common in the mucus layer of the stomach. In the small intestine, specifically from the duodenum to the ileum, the ph gradually becomes less acidic and bacterial numbers increase. An enterotype is a classification of living organisms based on its bacteriological ecosystem in the gut microbiome. (wikipedia) Compare the microbial microenvironments in the oral cavity in newborns and adults. Bacteria found in the mouth during the first year of life (when teeth are absent) are predominantly aerotolerant anaerobes such as streptococci and lactobaccili, and a few aerobes.
