They do this while living in root nodules on actinorhizal plants.

At times, the plant produces root nodules where it can fix nitrogen.

They have actinorhizal root nodules on their roots in which the bacteria live.

This association leads to the formation of nitrogen-fixing root nodules.

Rhizobia bacteria in root nodules help some plants get nitrogen.

This symbiosis results in a new plant organ termed a root nodule.

Root nodules apparently have evolved three times within the Fabaceae but are rare outside that family.

Many Fabaceae host bacteria in their roots within structures called root nodules.

This system is functionally similar to the root nodules in legumes like clover.

The plants obtain nutrients from root nodules and decomposing organic substance.

Bacteria of this genus also form root nodules.

They are also directly involved in the formation of root nodules in legume plants.

It has been assumed that the hemoglobin in root nodules is used to transport oxygen needed by the bacteria, among other things.

These leguminous plants have the capacity to fix nitrogen from the atmosphere through their specialized root nodules.

This genus can fix nitrogen from the air courtesy of their root nodules, making it useful as a cover crop.

The propensity of these plants to develop root nodules seems to relate to their root structure.

Creating and maintaining root nodules for rhizobacteria can cost between 12%-25% of the plants total photosynthetic output.

The tree's root nodules are known to fix nitrogen, and it is traditionally prized for its ability to increase the soil's fertility.

It is likely that the larvae of Sitona feed on the nitrifying root nodules.

Some nitrogen-fixing bacteria such as rhizobia live in the root nodules of legumes.

The roots have root nodules that host the nitrogen-fixing bacterium Frankia.

Rhizobia: nitrogen-fixing bacteria which live in root nodules on plants of the pea family.

Bacteria perform nitrogen fixation, dwelling inside root nodules of certain plants (legumes).

This species has root nodules containing nitrogen-fixing microorganisms, allowing it to grow in relatively poor soils.

Root nodule formation in these plants saves the world economy $10 billion in synthetic nitrogen fertilizer every year.