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Respiration and the energy requirement for nitrogen fixation in nodulated pea roots



Respiration and the energy requirement for nitrogen fixation in nodulated pea roots



Plant Physiology 60(6): 817-821



Pea plants were inoculated and grown in a controlled environment on N-free nutrient solution. After 4 weeks N was supplied as NH4NO3, KNO3 or NH4Cl, and rates of C2H2 reduction, root + nodule respirations, and leaf photosynthesis were determined a week later. The increase in respiration/unit of C2H2 reduction was not affected by either the form of N added or the light conditions during growth, although the basal respiration rate with no C2H2 reduction increased with irradiance level.

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Accession: 000485276

Download citation: RISBibTeXText

PMID: 16660192

DOI: 10.1104/pp.60.6.817



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