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image of Israel Journal of Plant Sciences

Electron transport mutants of Rhizobium japonicum 61A76 were isolated and have been partially characterized spectrally and biochemically. Mutants which are almost totally deficient in cytochromes c and aa 3 and with a reduced amount of cytochrome b grow normally under aerobic conditions. These mutants are symbiotically infective but form ineffective nodules.

Affiliations: 1: Charles F. Kettering Research Laboratory ; 2: Woman's College, Ain Shams University


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1. Appleby C.A."Electron transport systems of Rhizobium japonicum"I. Haemoprotein P-450, other CO-reactive pigments, cytochromes and oxidases in bacteroids from N2-fixing root nodules. Biochim. Biophys. Acta1969aVol 1727187
2. Appleby C.A."Electron transport systems of Rhizobium japonicum. II. Rhizobium haemoglobin, cytochromes and oxidases in free-living (cultured) cells"Biochim. Biophys. Acta1969bVol 17288105
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