Some examples of facultative anaerobic bacteria are the Staphylococci (Gram positive), Escherichia coli (Gram negative), Corynebacterium (Gram positive), and Listeria (Gram positive). Organisms in the Kingdom Fungi can also be facultative anaerobic, such as yeasts.
Factors influencing the switch are the concentrations of oxygen and fermentable material in the environment. In brewer's yeast, the Pasteur shift is the observed cessation of oxygen consumption when fermentable sugar is supplied. In a growing culture, the energy "economics" disfavors respiration due to the "overhead cost" of producing the apparatus, as long as sufficient fermentable substrate is available, even though the energy output per mole of fermented material is far less than from respiration's complete oxidation of the same substrate.
See also
External links
- Facultative Anaerobic Bacteria
- Obligate Anaerobic Bacteria
- Anaerobic Bacteria and Anaerobic Bacteria in the decomposition (stabilization) of organic matter.
This article is licensed under the GNU Free Documentation License.
Last updated on Monday October 06, 2008 at 15:05:26 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
|
|
|
|
|
Copyright © 2009, Dictionary.com, LLC. All rights reserved.
