What is role of rhizobium bacteria?

Answer 1

Rhizobia are soil bacteria whose role is fixing nitrogen after establishing inside root nodules(roots of plants) of legumes (Fabaceae). Rhizobia require a plant host; they cannot independently fix nitrogen. Nitrogen is the most commonly deficient nutrient in most soils around the world and it is the most commonly supplied plant nutrient.

Supply of nitrogen through fertilizers has severe environmental concerns.

Ahmed Urbizo

Answer 2

Nitrogen is present in the largest amount in the atmosphere - in the gaseous form.

So , it is impossible for organisms to take in nitrogen . As it is less reactive, it doesn't react in the gaseous form so it has to be converted to useable form....Rhizobium is a type of useful bacteria that helps in converting gaseous nitrogen to useable form, and then it releases it into the soil. Plants tale these and produce proteins. Animals eat plants and we eat both . This is how Rhizobium is helpful.

Answer 3

Yes, because they "fix" nitrogen in the soil converting the unusable N2 to Ammonina, which the plants can use

Answer 4

I think that is an organism that can fix nitrogen from the air into the soil so plants can use it. The farmer does not have to add as much to the soil to fertilize, therefore saving money.

Answer 5

Legumes have bacteria on their roots that form nitrogen.