Difference between revisions of "Exploring the Bacteria Found In Underwater Environments"
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==Introduction== | ==Introduction== | ||
| − | :- All organisms respire, i.e. have a metabolic mechanism by which they obtain energy. | + | :- All organisms respire, i.e. have a metabolic mechanism by which they obtain energy. This oxidation-reduction (redox) mechanism requires electrons to be transferred from the electron donor (ie the fuel) to the electron acceptor. |
| − | :- Carbon compounds are the fuel for | + | :- Carbon compounds are the most common electron donor, although inorganic nitrogen is also a fuel for some bacteria. |
:- Bacteria can exist in aerobic (with oxygen) and anaerobic (without oxygen) environments. | :- Bacteria can exist in aerobic (with oxygen) and anaerobic (without oxygen) environments. | ||
| − | :- Aerobic bacteria use dioxygen (O<sub>2</sub>) as the electron | + | :- Aerobic bacteria that can only use dioxygen (O<sub>2</sub>) as the electron acceptor are called obligate aerobes. |
| + | :- Anaerobic bacteria must use something other than dioxygen as an electron acceptor. | ||
:- [https://en.wikipedia.org/wiki/Facultative_anaerobic_organism Facultative bacteria] can carryout respiration using either aerobic or anaerobic mechanisms. | :- [https://en.wikipedia.org/wiki/Facultative_anaerobic_organism Facultative bacteria] can carryout respiration using either aerobic or anaerobic mechanisms. | ||
| − | |||
:- We are particularly interested in anaerobic bacteria. | :- We are particularly interested in anaerobic bacteria. | ||
::* [https://en.wikipedia.org/wiki/Sulfate-reducing_microorganism sulfate-reducing bacteria] | ::* [https://en.wikipedia.org/wiki/Sulfate-reducing_microorganism sulfate-reducing bacteria] | ||
Latest revision as of 20:25, 8 June 2022
Motivation
Related People/Researchers
- - Julie A. Huber
- - Stephanie J. Schwabe
- - Jennifer L. Macalady
Introduction
- - All organisms respire, i.e. have a metabolic mechanism by which they obtain energy. This oxidation-reduction (redox) mechanism requires electrons to be transferred from the electron donor (ie the fuel) to the electron acceptor.
- - Carbon compounds are the most common electron donor, although inorganic nitrogen is also a fuel for some bacteria.
- - Bacteria can exist in aerobic (with oxygen) and anaerobic (without oxygen) environments.
- - Aerobic bacteria that can only use dioxygen (O2) as the electron acceptor are called obligate aerobes.
- - Anaerobic bacteria must use something other than dioxygen as an electron acceptor.
- - Facultative bacteria can carryout respiration using either aerobic or anaerobic mechanisms.
- - We are particularly interested in anaerobic bacteria.
Equipment
Experimental
References
Coupled reductive and Oxidative sulfur cycling (Gebiol, 2014)
Energy, Ecology, and the Distribution of Microbial Life (Philosophical Transactions, 2013)