Systems Microbiolo35

Systems Microbiolo35 - very reactive(rocket fuel • The...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Systems Microbiology ° Organisms that don’t use oxygen have similar electron transport chains, they just don’t use oxygen as the final electron acceptor. Often, they use iron, sulfate, or nitrate. ° Chemolithotrophs are the same story ° These kinds off microbes are important, for example, in aquariums. You use them to keep the fish from dying of ammonium poisoning from their own waste. ° Applications o The nitrogen from fertilizers gets into ground waters ° Anammox: “Anaerobic Ammonium Oxidation.” ° This is a pretty new method. ° Broda predicted (solely based on the thermodynamics) that microbes that do this must exist: 2222 2 NHNONHO + °° →+ ° If a favorable niche exists, then something will evolve to fill it ° The microbes were discovered ten years ago ° These microbes produce hydrazine, which is
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: very reactive (rocket fuel) • The organisms contain this reactive hydrazine within special pockets ° These organisms are not easy to grow, but with the right conditions you can do it ° These organisms also do carbon dioxide removal as well as nitrogen removal ° People have built big plants that do this very efficiently now, particularly in the Netherlands ° Denitrifiers are another way you can remove nitrogen o Picture: Geobacter growing on iron hydroxides. They grow on a solid, not in a solution o Microbial redox interactions with uranium: an environmental perspective o If you look at a sediment, you can predict where the different types of reduction are going to occur on each level. ° This has to do with energetics – it explains the order (ΔG o )...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online