Retrieving "Anaerobic Microorganisms" from the archives

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1. Humus

   Linked via "anaerobic microorganisms"

   The formation of humus begins with the fragmentation of litter (e.g., leaf litter, dead roots) through physical weathering and the action of soil fauna. Subsequent microbial decomposition, driven primarily by bacteria and fungi, breaks down labile compounds into simpler molecules. These simpler molecules undergo complex polymerization and condensation reactions, often catalyzed by metal ions such as iron or [aluminum](/entries/alum…