Question

Q18 With which group of plants ,Rhizobium is assosciated and what is its role?​

Answer 1

Answer:

Rhizobium is a genus of gram-negative, motile bacteria whose members are most notable for their ability to establish a symbiotic relationship with leguminous plants, such as peas, soybeans, and alfalfa. This relationship leads to the establishment of specialized structures called nodules.

Explanation:

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Answer 2

Answer:

leguminous plants is the group of plants with which rhizobium is associated

Leguminous plants belong to the family Fabaceae (or Leguminosae). The fruits of this plant are called legumes. Well-known examples of legumes include alfalfa, clover, peas, beans, lentils, lupins, mesquite, carob, soy, and peanuts. Legume plants are notable for their ability to fix atmospheric nitrogen.

Rhizobium are diazotrophic bacteria that fix nitrogen after becoming established inside the root nodules of legumes. To express genes for nitrogen fixation, rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are gram negative, motile, non-sporulating rods.

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