BIO SCI 94 Chapter Notes - Chapter 29: Enrichment Culture, Microbiological Culture, Archaea

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Robin Bush

Document Summary

Bacteria have unique compound called peptidoglycan in their cell walls. Archaea have unique phospholipids in their plasma membranes - the hydrocarbon tails are made from isoprene. The lineages in the domains bacteria and archaea are ancient, diverse, abundant, and ubiquitous (found everywhere) Only 5000 species formally named and described, but virtually certain millions types of species of bacteria and archaea exist. Most microbes in the bodies of organisms are bacteria and archaea. In terms of total volume of living material on our planet, bacteria and archaea are dominant life-forms. Bacteria & archaea found almost everywhere, but know very little about them. Recent collecting expedition came up with entirely new phyla. Some bacteria or archaea live in high-salt, high-temp, low-temp, or high-pressure habitats and they are called extremophiles. Hot area of research; wide array have been sequenced and expedition regularly seek to characterize new species because.