Assertion: legume's root | /r/CapableOf | provide a food source
Facets:
value: for microbes
type: TRANSITIVE-OBJECT
Source sentences:
text: Microbes colonise the outside of plant roots because roots provide a food source for microbes, e.g. sloughed off root cells, mucilage (polysaccharides produced by the root cap), exudates (organic acids, sugars, amino acids), dead roots etc.