Daniel V Lim, University of South Florida, Tampa, USA
Published online: April 2001
DOI: 10.1038/npg.els.0000459
Microbiology is the study of agents too small to be seen with the unaided eye. These agents (and their fields of study) are bacteria (bacteriology), fungi (mycology), protozoa (protozoology), algae (phycology) and viruses (virology).
Keywords: prokaryote; bacteria; archaea; microorganism; genetic engineering
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Figure 1. Universal phylogenetic tree. The phylogenetic relationships among organisms in the three domains Bacteria, Archaea and Eukarya are shown. Separations are based on the unique ribosomal RNA sequences for members of each domain.
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Figure 2. Basic forms of prokaryotes. Prokaryotes exist in three fundamental forms: spherical (coccus), rod (bacillus) and spiral (spirillum).
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| Further Reading | |
| book Atlas RM (1997) Principles of Microbiology, 2nd edn. Dubuque, IA: McGraw-Hill. | |
| book Black JG (1999) Microbiology: Principles and Explorations, 4th edn. Upper Saddle River, NJ: Prentice Hall. | |
| book Brock T (1961) Milestones in Microbiology. Upper Saddle River, NJ: Prentice Hall. | |
| book Lim D (1998) Microbiology, 2nd edn. Dubuque, IA: McGraw-Hill. | |
| book Madigan MT, Martinko JM and Parker J (2000) Brock Biology of Microorganisms, 9th edn. Upper Saddle River, NJ: Prentice Hall. | |
| Olsen GJ, Woese CR and Overbeek R (1994) The winds of (evolutionary) change: breathing new life into microbiology. Journal of Bacteriology 176: 1–6. | |
| book Prescott LM, Harley JP and Klein DA (1999) Microbiology, 4rd edn. Dubuque, IA: McGraw-Hill. | |
| book Tortora GJ, Funke BR and Case CL (2001) Microbiology: An Introduction, 7th edn. Menlo Park, CA: Benjamin Cummings. | |
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