Which of following is common to Azospirillum, Anabaena, Nostoc and Oscillatoria

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8.Microbes in Human Welfare

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Which of the following is common to Azospirillum, Anabaena, Nostoc and Oscillatoria

$N_{2}$-fixer microbes

Prokaryotic organism

Both $(a)$ and $(b)$

Eukaryotic organism

Solution

Azospirillumis a Gram negative, free living bacteria, which absorb free nitrogen from soil and air and convert it into salts of nitrogen like amino acids and enrich soil nutrients.

Nostoc, Anabaena and Oscillatoria fix atmospheric nitrogen and increase the organic matter of the soil through their photosynthetic activity

Standard 12

Biology

Organic forming does not include

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Which of the following is non-symbiotic biofertilizer

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(AIPMT-1998)

Aquatic fern which is an excellent biofertilizer

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(AIPMT-2001)

Biofertilizers include

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Identify correct option for micorrhiza

$(1)$ Many members of the genus glomusinvolved micorrhiza

$(2)$ It is responsible for all mineralsabsorption from the soil

$(3)$ Such associations show benefitsagainst draught and salinity in plants

$(4)$ Micorrhiza is a symbiotic relation ofalgae and plants

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Which of the following is common to Azospirillum, Anabaena, Nostoc and Oscillatoria

Solution

Similar Questions

Organic forming does not include

Which of the following is non-symbiotic biofertilizer

Aquatic fern which is an excellent biofertilizer

Biofertilizers include

Identify correct option for micorrhiza $(1)$ Many members of the genus glomusinvolved micorrhiza $(2)$ It is responsible for all mineralsabsorption from the soil $(3)$ Such associations show benefitsagainst draught and salinity in plants $(4)$ Micorrhiza is a symbiotic relation ofalgae and plants

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