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Question
Which one of the following helps in the absorption of phosphorus from soil by plants?
Which one of the following helps in the absorption of phosphorus from soil by plants?
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Solution
The correct option is A Glomus
Biofertilisers refer to microorganisms such as bacteria, cyanobacteria, or fungi etc. which can be used in agriculture fields for the increase in crop production. These organisms enrich the nutrient quality of the soil.
Let us consider some examples:
Certain fungi are closely associated with the roots of higher plants. This symbiotic association of fungi with the roots of higher plants is called mycorrhiza. Many members of the genus Glomus (fungi) form mycorrhiza. The fungi absorb phosphorus from soil and passes it to the plant. Thus, it reduces the dependency on chemical fertilisers. Plants with such fungal associations also show resistance to root-borne pathogens, tolerance to abiotic stresses (salinity and drought), and an overall increase in plant growth and development.
Rhizobium is a symbiotic nitrogen fixing bacterium. It is found in association with the root nodules of plants belonging to the legume family.
Azotobacter is a free-living nitrogen fixing bacteria. They live freely in the soil and perform nitrogen fixation.
Oscillatoria is a blue green alga (cyanobacteria) that is capable of fixing atmospheric nitrogen.
Biofertilisers refer to microorganisms such as bacteria, cyanobacteria, or fungi etc. which can be used in agriculture fields for the increase in crop production. These organisms enrich the nutrient quality of the soil.
Let us consider some examples:
Certain fungi are closely associated with the roots of higher plants. This symbiotic association of fungi with the roots of higher plants is called mycorrhiza. Many members of the genus Glomus (fungi) form mycorrhiza. The fungi absorb phosphorus from soil and passes it to the plant. Thus, it reduces the dependency on chemical fertilisers. Plants with such fungal associations also show resistance to root-borne pathogens, tolerance to abiotic stresses (salinity and drought), and an overall increase in plant growth and development.
Rhizobium is a symbiotic nitrogen fixing bacterium. It is found in association with the root nodules of plants belonging to the legume family.
Azotobacter is a free-living nitrogen fixing bacteria. They live freely in the soil and perform nitrogen fixation.
Oscillatoria is a blue green alga (cyanobacteria) that is capable of fixing atmospheric nitrogen.
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