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Question
Which of the following microorganims can fix nitrogen in non-leguminous plants?
Which of the following microorganims can fix nitrogen in non-leguminous plants?
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Solution
The correct option is C Frankia
Plants cannot directly use atmospheric nitrogen. Plants absorb nitrogen from the soil in the form of nitrates, nitrites and ammonium ions. Symbiotic nitrogen fixation is a process in which plant harbor nitrogen-fixing bacteria within their tissues. Microorganisms that fix nitrogen include Azotobacter, Rhizobia,Frankia. While the leguminous plants enter into a symbiotic association with rhizobia to fix nitrogen, Frankia is used by the non-leguminous plants in their symbiotic association. Thus, the correct answer is option C.
Plants cannot directly use atmospheric nitrogen. Plants absorb nitrogen from the soil in the form of nitrates, nitrites and ammonium ions. Symbiotic nitrogen fixation is a process in which plant harbor nitrogen-fixing bacteria within their tissues. Microorganisms that fix nitrogen include Azotobacter, Rhizobia,Frankia. While the leguminous plants enter into a symbiotic association with rhizobia to fix nitrogen, Frankia is used by the non-leguminous plants in their symbiotic association.
Thus, the correct answer is option C.
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