Assertion: nodule | /r/HasProperty | structure
Facets:
Source sentences:
text: : the conversion of atmospheric nitrogen into ammonia and organic derivatives, by natural means, especially by microorganisms in the soil, into a form that can be assimilated by plants nodule: structures that occur on the roots of plants that associate with symbiotic nitrogen-fixing bacteria Nitrogen Fixation: Root and Bacteria Interactions Nitrogen is an important macronutrient because it is part of nucleic acids and proteins.