In the formation of a root nodule, what are the steps involved?

Asked by Abhisek | 2 years ago |  212

1 Answer

Solution :-

The nodule formation involves many steps and a sequence of multiple interactions between Rhizobium and the roots of the host plant. The nodule formation steps are:

● Firstly, the Rhizobia multiply and colonise the surroundings of roots and epidermal and root hair cells get attached to it. The bacteria invade when the root-hair curls.

● The bacteria are carried into the cortex of the root when an infection thread is produced, where the nodule formation in the cortex of the root is initiated.

● From the thread, the bacteria are released into the cells which lead to the differentiation of specialized cells for nitrogen fixation.

● A direct vascular connection is formed with the host with the help of nodules which help in the exchange of nutrients.

Answered by Pragya Singh | 2 years ago

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