Question

How cyanobacteria affect the nitrogen cycle in water ecoseystems?

Answer 1

Answer:

Nitrogen-fixing cyanobacteria need not be free living. In wetlands, for example, cyanobacteria such as Anabaena spp. ... Thus, the role of nitrogen fixation in supplying N to primary producers in open water ecosystems is quite variable and usually low (generally <1% of total nitrogen input).

Answer 2

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Cyanobacteria are autotrophic microbes found in aquatic and Terrestrial environment .Most of these fix atmospheric nitrogen .

example :- nostoc ,oscillatoria and anaebena.

In paddy fields cyanobacteria serve as an important biofertilizer as they enrich the nitrogen content in the soil. They also add organic matter to the soil. Thus increasing the fertility .

Thus the application of cyanobacteria helps in improving agricultural output .

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