Biology, asked by amrethaarvind, 1 year ago

explain the root formation of leguminous plant

Answers

Answered by kanika58
1
Nodule formation : (a) It includes the reactions between Rhizobium and roots of host plant. Rhizobia multiply, (b) They colonise the surrounding of the roots. They get attached to root epidermal hair cells,
© A root hair curls and the bacterium invades into it. An infection thread is formed carrying it into root jcortex: (d) The bacteria are then released from the thread into cells and it causes the differentiation of N2 fixing cells. Nodule formation occurs.

amrethaarvind: thank u very much
Answered by RuchiPatel
1
Hi...

Root nodules occur on the roots of plants (primarily ) that associate with . Under -limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as . This process has evolved multiple times within the Fabaceae. The Fabaceae include crops such as and .

Within legume nodules, nitrogen gas from the atmosphere is converted into , which is then assimilated into (the building blocks of proteins), (the building blocks of and as well as the important energy molecule ), and other cellular constituents such as ,, and . Their ability to gaseous nitrogen makes legumes an ideal agricultural organism as their requirement for nitrogen fertilizer is reduced. Indeed high nitrogen content blocks nodule development as there is no benefit for the plant of forming the symbiosis. The energy for splitting the nitrogen gas in the nodule comes from sugar that is translocated from the leaf (a product of ). as a breakdown product of sucrose is the direct carbon source for the bacteroid. Nitrogen fixation in the nodule is very oxygen sensitive. Legume nodules harbor an iron containing protein called , closely related to animal, to facilitate the conversion of nitrogen gas to ammonia.

Hope it helps you. :-)
Please mark as brainliest answer. :-)
Similar questions