BIOL-108 Lecture Notes - Lecture 3: Swiss Cheese, Lactobacillales, Actinobacteria
Document Summary
Gram-staining and domain bacteria cell walls: gram-stain differentiates bacteria into two large groups: gram-positive and gram- 2. 1 firmicutes: form bacilli or cocci, have lower concentration of g&c than actinobacteria, found in staphylococcus epidermis on our skin. Actinobacteria on us and their stinky cheeses: two actinobacteria that naturally occur on humans propionibacterium and brevibacterium, propionibacterium dwells on the skin, at their worst cause acne. Also responsible for the nutty and sweet flavours of swiss cheese. Cause the big holes in swiss cheese: brevibacterium dwells in the most environment between our toes. Same smell is replicated in a group of delicious cheeses. !1: cyanobacteria (blue-green algae, group of bacteria found primarily in fresh water habitats sometimes moist terrestrial habitats and the fur of mammals, gram-negative have photosynthesis process, carbon fixing photoautotrophes, single celled, colonial species and multicellular. Environmental survey of bacteria and microorganisms: microbes are found everywhere, major part of the earths biomass.