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Biochemistry and physiology of nitrogen fixation

H. Haaker

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Abstract

Abstract Biological dinitrogen fixation, the reduction of N2 to NH3, requires the enzyme nitrogenase, MgATP, a strongly reducing electron donor and an anaerobic environment. Reducing power for nitrogen fixation is generated by two particular mechanisms, while the mechanisms for protecting nitrogen fixation from oxygen show a greater diversity. Both the reduction and the protection aspects of nitrogen fixation, especially those of the legume root nodule, will be discussed.

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What this paper is about

Abstract Biological dinitrogen fixation, the reduction of N2 to NH3, requires the enzyme nitrogenase, MgATP, a strongly reducing electron donor and an anaerobic environment. Reducing power for nitrogen fixation is generated by two particular mechanisms, while the mechanisms for protecting nitrogen fixation from oxygen show a greater diversity. Both the reduction and the protection aspects of nitrogen fixation, especially those of the legume root nodule, will be discussed.

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Available abstract

Abstract Biological dinitrogen fixation, the reduction of N2 to NH3, requires the enzyme nitrogenase, MgATP, a strongly reducing electron donor and an anaerobic environment. Reducing power for nitrogen fixation is generated by two particular mechanisms, while the mechanisms for protecting nitrogen fixation from oxygen show a greater diversity. Both the reduction and the protection aspects of nitrogen fixation, especially those of the legume root nodule, will be discussed.

Key concepts: Nitrogen fixation, Nitrogenase, Fixation (population genetics), Nitrogen, Root nodule, Chemistry, Biochemistry, Biology

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