Why is Oxygen Fatal to Obligate Anaerobes?

Thread starter donaldcat
Start date Feb 27, 2006

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SUMMARY

The presence of oxygen is fatal to obligate anaerobes due to its ability to react with ions, resulting in the formation of free radicals and superoxide radicals that can damage cellular components. Key reactions involved include the Haber-Weiss cycle and the Fenton reaction, which illustrate the biochemical processes leading to oxidative stress in these organisms.

PREREQUISITES

Understanding of obligate anaerobes and their metabolic processes
Knowledge of oxidative stress and its effects on cells
Familiarity with the Haber-Weiss cycle
Basic concepts of the Fenton reaction

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Research the mechanisms of oxidative stress in obligate anaerobes
Study the Haber-Weiss cycle in detail
Explore the Fenton reaction and its implications in microbiology
Investigate methods to mitigate oxidative damage in anaerobic bacteria

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Microbiologists, biochemists, and anyone studying anaerobic organisms and their responses to oxygen exposure.

Feb 27, 2006

donaldcat

I want to ask why the presence of oxygen is fatal to obligate anaerobes.
Thank you.

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Feb 27, 2006

iansmith

Staff Emeritus

Science Advisor

Gold Member

oxygen can react with ions and create free radical and superoxides radical. These can damage the cell. Look for the Haber-Weiss cycle and the Fenton reaction.