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WHICH SUBSTANCE IS PRESENT IN ROOT NODULES OF LEGUMINOUS PLANTS?

Dear student

The significance of swelling in leguminous plants:

In root nodules (swelling region) of leguminous plants, a nitrogen-fixing bacteria is present. This bacteria is called Rhizobium. Roots of a legume plant secrete chemical attractants. Bacteria collect over the root hairs and form infection thread. The infected root cell forms a pigment called leghemoglobin. The leghemoglobin protects the nitrogen-fixing enzyme from oxygen. 

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Nitrogen-fixing bacteria found in the soil and in the root nodules of leguminous plants, such as peas, beans and clover, fix nitrogen gas into nitrogen compounds. The Haber process is used by industry to produce ammonia from nitrogen and hydrogen.
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Nitrogen-fixing bacteria found in the soil and in the root nodules of leguminous plants, such as peas, beans and clover, fix nitrogen gas into nitrogen compounds. The Haber process is used by industry to produce ammonia from nitrogen and hydrogen.
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