Assertion: root's number | /r/Desires | these fungi
Facets:
value: for nutrition
type: PURPOSE
Source sentences:
text: The nodular roots of many members of the pea family ( Fabaceae ) host symbiotic nitrogen-fixing bacteria , and many plant roots also form intricate associations with mycorrhizal soil fungi ; a number of non-photosynthetic mycoheterotrophic plants, such as Indian pipe , rely exclusively on these fungi for nutrition.