Ensign, J. C. Department of Bacteriology, University of Wisconsin, Madison, Wisconsin.
Show previous versions
- Relationship to other life forms
- Bacteria and disease
- Models for biochemistry and genetics
- Links to Primary Literature
- Additional Readings
The study of bacteria. The science of bacteriology is a specialized branch of microbiology concerned with bacteria (Fig. 1). Although bacteria are different in some important respects from all other kinds of cells, their basic processes of physiology and genetics are the same as in all forms of life. One unusual property of bacteria as a whole is their physiological diversity. Some bacteria live in the total absence of oxygen and convert complex carbohydrates to acids and alcohols (fermentation), sulfate to hydrogen sulfide, nitrate to nitrogen gas, and hydrogen plus carbon dioxide to methane gas; other bacteria carry out photosynthesis by mechanisms nearly identical to plants; some bacteria can grow and multiply by using energy obtained from oxidation of sulfur, ammonia, hydrogen, or iron, while obtaining carbon for cell synthesis from carbon dioxide; and some can obtain their needed nitrogen from the gas in air. See also: Bacteria; Bacterial physiology and metabolism; Fermentation; Methanogenesis (bacteria); Microbiology
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 39 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information