We find that Rhizobium forms nodules on the roots of leguminous plants. Also, Frania another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus. Can we artificially induce the properly of nitrogen fixation in a plant-leguminous or non-leguminous?

We find that Rhizobium forms nodules on the roots of leguminous plants. Also, Frankia another microbe forms nitrogen fixing nodules on the roots of non-leguminous plants Alnus. What kind of relationship of observed between mycorrhiza and pine trees?

We find that Rhizobium forms nodules on the roots of leguminous plants. Also, Frania another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus. Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition? Explain with the help of one example.

Sketch and label the root system of a leguminous plant.

_________ bateria present in Root nodules of leguminous plants help in nitrogen fixation.

How can we observe Rhizobium bacteria in the roots of leguminous plant?

How the bacteria present in soil and root nodules of leguminous plants are useful ?

Name the following Write the names of microbes found in following food material: Root nodules of leguminous plants

True or False. Rhizobium living in root nodules of leguminous plants exhibit symbiotic relationship.

Read the following paragraph and answer the questions based on it. Rhizobium produce nitrogenous compounds from atmospheric nitrogen. However, for this process of nitrogen fixation, they need leguminous plants like beans, sweet pea, soyabean, etc. as ‘host’. Rhizobium living in root nodules supply nitrates, nitrites and amino acids to that plant and in exchange get energy in the form of carbohydrates from it. Such a mutually beneficial relationship is called symbiosis. Beans and pulses are rich in proteins due to the nitrogenous compounds made available by Rhizobium. After harvesting a leguminous crop, the left-over roots and other plant parts are deliberately dumped in farm soil to maintain its bacterial population. The use of Rhizobium has helped to reduce the use of chemical fertilizers and thereby their adverse effects. It has also helped to reduce expenses on fertilizers and thus works to the benefit of farmers. What is provided by the host plant to the Rhizobium bacteria?