The organisms like bacteria, blue green algae (cyanobacteria) or fungi, which enrich the soil in nutrients are called biofertilizers. They can used to supplement or replace chemical fertilizers. Bio fertilizers are a sustainable and environmentally friendly way to improve soil health and crop yields.
AMU-2010
Microbes in Human Welfare
260044
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobacter
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium bacteria live symbiotically in root nodules of legumes, which fix atmospheric $\mathrm{N}_2$ increase the fertility of soil.
Manipal-2000
Microbes in Human Welfare
260045
Root nodules for nitrogen fixation in non leguminous trees are produced by species of the genus
1 Rhizobium
2 Azotobacter
3 Frankia
4 Thiobacillus
Explanation:
Frankia is a microbe that produces nitrogen fixing nodules on the roots of non leguminous plants (e.g. Alnus sp.). Frankia is free-living in the soil, but as symbionts it can fix atmospheric nitrogen.
CG PMT-2007
Microbes in Human Welfare
260047
VAM is:
1 Bio-insecticide
2 Ecto-mycorrhiza
3 Endo-mycorrhiza
4 Bio-herbicide
Explanation:
Vesicular-arbuscular mycorrhiza (VAM) is a symbiotic association between certain fungi and angiosperm roots. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells, which swell to form vesicles on arbuscules called VAM. It has important role in phosphate nutrition of plants. VAM is a type of endo-mycorrhiza.
The organisms like bacteria, blue green algae (cyanobacteria) or fungi, which enrich the soil in nutrients are called biofertilizers. They can used to supplement or replace chemical fertilizers. Bio fertilizers are a sustainable and environmentally friendly way to improve soil health and crop yields.
AMU-2010
Microbes in Human Welfare
260044
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobacter
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium bacteria live symbiotically in root nodules of legumes, which fix atmospheric $\mathrm{N}_2$ increase the fertility of soil.
Manipal-2000
Microbes in Human Welfare
260045
Root nodules for nitrogen fixation in non leguminous trees are produced by species of the genus
1 Rhizobium
2 Azotobacter
3 Frankia
4 Thiobacillus
Explanation:
Frankia is a microbe that produces nitrogen fixing nodules on the roots of non leguminous plants (e.g. Alnus sp.). Frankia is free-living in the soil, but as symbionts it can fix atmospheric nitrogen.
CG PMT-2007
Microbes in Human Welfare
260047
VAM is:
1 Bio-insecticide
2 Ecto-mycorrhiza
3 Endo-mycorrhiza
4 Bio-herbicide
Explanation:
Vesicular-arbuscular mycorrhiza (VAM) is a symbiotic association between certain fungi and angiosperm roots. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells, which swell to form vesicles on arbuscules called VAM. It has important role in phosphate nutrition of plants. VAM is a type of endo-mycorrhiza.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Microbes in Human Welfare
260042
The mains sources of biofertilizers are
1 Bacteria
2 Cyanobacteria
3 Fungi
4 All of these
Explanation:
The organisms like bacteria, blue green algae (cyanobacteria) or fungi, which enrich the soil in nutrients are called biofertilizers. They can used to supplement or replace chemical fertilizers. Bio fertilizers are a sustainable and environmentally friendly way to improve soil health and crop yields.
AMU-2010
Microbes in Human Welfare
260044
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobacter
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium bacteria live symbiotically in root nodules of legumes, which fix atmospheric $\mathrm{N}_2$ increase the fertility of soil.
Manipal-2000
Microbes in Human Welfare
260045
Root nodules for nitrogen fixation in non leguminous trees are produced by species of the genus
1 Rhizobium
2 Azotobacter
3 Frankia
4 Thiobacillus
Explanation:
Frankia is a microbe that produces nitrogen fixing nodules on the roots of non leguminous plants (e.g. Alnus sp.). Frankia is free-living in the soil, but as symbionts it can fix atmospheric nitrogen.
CG PMT-2007
Microbes in Human Welfare
260047
VAM is:
1 Bio-insecticide
2 Ecto-mycorrhiza
3 Endo-mycorrhiza
4 Bio-herbicide
Explanation:
Vesicular-arbuscular mycorrhiza (VAM) is a symbiotic association between certain fungi and angiosperm roots. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells, which swell to form vesicles on arbuscules called VAM. It has important role in phosphate nutrition of plants. VAM is a type of endo-mycorrhiza.
The organisms like bacteria, blue green algae (cyanobacteria) or fungi, which enrich the soil in nutrients are called biofertilizers. They can used to supplement or replace chemical fertilizers. Bio fertilizers are a sustainable and environmentally friendly way to improve soil health and crop yields.
AMU-2010
Microbes in Human Welfare
260044
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobacter
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium bacteria live symbiotically in root nodules of legumes, which fix atmospheric $\mathrm{N}_2$ increase the fertility of soil.
Manipal-2000
Microbes in Human Welfare
260045
Root nodules for nitrogen fixation in non leguminous trees are produced by species of the genus
1 Rhizobium
2 Azotobacter
3 Frankia
4 Thiobacillus
Explanation:
Frankia is a microbe that produces nitrogen fixing nodules on the roots of non leguminous plants (e.g. Alnus sp.). Frankia is free-living in the soil, but as symbionts it can fix atmospheric nitrogen.
CG PMT-2007
Microbes in Human Welfare
260047
VAM is:
1 Bio-insecticide
2 Ecto-mycorrhiza
3 Endo-mycorrhiza
4 Bio-herbicide
Explanation:
Vesicular-arbuscular mycorrhiza (VAM) is a symbiotic association between certain fungi and angiosperm roots. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells, which swell to form vesicles on arbuscules called VAM. It has important role in phosphate nutrition of plants. VAM is a type of endo-mycorrhiza.