This system is functionally similar to the root nodules in legumes like clover.
They are also directly involved in the formation of root nodules in legume plants.
They have actinorhizal root nodules on their roots in which the bacteria live.
This association leads to the formation of nitrogen-fixing root nodules.
They do this while living in root nodules on actinorhizal plants.
At times, the plant produces root nodules where it can fix nitrogen.
Rhizobia bacteria in root nodules help some plants get nitrogen.
Many Fabaceae host bacteria in their roots within structures called root nodules.
It has been assumed that the hemoglobin in root nodules is used to transport oxygen needed by the bacteria, among other things.
This symbiosis results in a new plant organ termed a root nodule.