Nitrogen fixation in root nodules of Alnus is | vedclass

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Question

(A) $Frankia$ is a filamentous,nitrogen-fixing bacterium that forms a symbiotic relationship with the roots of various non-leguminous plants,including

Vedclass · Accepted Answer

$Frankia$

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(A) $Frankia$ is a filamentous,nitrogen-fixing bacterium that forms a symbiotic relationship with the roots of various non-leguminous plants,including $Alnus$ (alder) and $Casuarina$.These bacteria induce the formation of root nodules,where they fix atmospheric nitrogen into ammonia,which the plant can utilize for growth.While $Rhizobium$ is typically associated with leguminous plants,$Frankia$ is specifically known for its association with non-leguminous woody plants.Therefore,the correct answer is $Frankia$.

Nitrogen fixation in root nodules of $Alnus$ is brought about by

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