Rhizobia facts for kids
Rhizobia bacteria in nodules fix nitrogen
Soybean root nodules, each containing billions of Bradyrhizobium bacteria
Rhizobia are soil bacteria which become established inside root nodules of legumes (the pea family: Fabaceae).
They fix nitrogen in a form the plant can use. Rhizobia require a plant host; they cannot independently fix nitrogen. The relationship is a classic example of symbiosis and mutualism.
The word rhizobia comes from the English root for root (rhizo) and the Ancient Greek for life (bios).
Images for kids
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Rhizobia nodules on Vigna unguiculata
See also
In Spanish: Rizobio para niños
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Rhizobia Facts for Kids. Kiddle Encyclopedia.