Microorganisms are capable of transforming atmospheric nitrogen into fixed nitrogen inorganic compou...........

Environment and Ecology Concept of Ecology

Microorganisms are capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). In which of the following roots of plants symbiotic nitrogen-fixing bacteria are found?

1. Lentils

2. Groundnut

3. Sugarcane

Select the correct option from the codes given below:

1 and 2

2 and 3

1 and 3

1, 2 and 3

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Explanation:

The notable point in this question is that while some sugarcane varieties are known to be capable of fixing atmospheric nitrogen in association with a bacterium called Glucoacetobacter diazotrophicus; in contrary to legumes and other nitrogen fixing plants which form root nodules in the soil in association with bacteria, G. diazotrophicus lives within the intercellular spaces of the sugarcane's stem.