Which one of the following produces nitrogen-fixing nodules on the roots of $Alnus$?

  • A
    $Frankia$
  • B
    $Rhodospirillum$
  • C
    $Beijerinckia$
  • D
    $Rhizobium$

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Similar Questions

Which bacteria fix atmospheric nitrogen while they are free-living in the soil?

$Azotobacter$ and $Bacillus \text{ } polymyxa$ are:

The first stable product formed during atmospheric nitrogen fixation in leguminous plants is -

Which element plays an important role in nitrogen fixation?

$a + 8e^- + b + 16 \, ATP \rightarrow c + d + 16 \, ADP + 16 \, Pi$

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