free-living bacterium

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free-living bacterium

biology

Also known as: non-symbiotic bacterium

Learn about this topic in these articles:

nitrogen fixation

In nitrogen fixation: Nitrogen fixation in nature
…of nitrogen-fixing microorganisms are recognized: free-living (nonsymbiotic) bacteria, including the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter, Beijerinckia, and Clostridium; and mutualistic (symbiotic) bacteria such as Rhizobium, associated with leguminous plants, and various Azospirillum species, associated with
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