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Microbes in Human Welfare question

2012 · Q88
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Microbes in Human Welfare question

2012 · Q88

NEETBiologyMicrobes in Human WelfareMCQ+4 / −1
A nitrogen - fixing microbe associated with Azolla in rice fields is
  1. A
    Tolypothrix
  2. B
    Spirulina
  3. C
    Frankia
  4. D
    Anabaena
View written solutionFree

Correct answer: D

Anabaena azollae resides in the leaf cavities of the fern Anabaena. It fixes nitrogen. A part of the fixed nitrogen is excreted in the cavities and becomes available to the fern. The decaying fern plants release the same for utilization of the rice plants.

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