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27. Interactions between
prokaryotes
- Types of symbioses: mutualism, commensalism, antagonisms,
neutralism.
- Examples of microbial symbioses: intestinal tracts,
mouth, sediments, swamps, paddies, sewage digestors.
- Electron-donor regulated interactions: syntrophy
in anaerobic methanogenic food chains.
- Carbon substrate syntrophy between Klebsiella sp.
and Desulfovibrio sp.
- Mutualistic electron donor / electron acceptor interactions
between sulfidogens and sulfidotrophs.
- Thermodynamically mandatory electron syntrophy: interspecies
hydrogen transfer.
- Syntrophies for the anaerobic degradation of aromatic
compounds.
- Interactions on the genetic level: gene exchange
in nature.
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microeco
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