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Proc Natl Acad Sci U S A. 1987 Aug;84(16):5754-7.

Expression of a complete soybean leghemoglobin gene in root nodules of transgenic Lotus corniculatus.

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Department of Molecular Biology and Plant Physiology, University of Aarhus, C. F. Møllers Alle 130, DK-8000 Aarhus C. Denmark.


The complete soybean leghemoglobin lbc(3) gene was transferred into the legume Lotus corniculatus using an Agrobacterium rhizogenes vector system. Organ-specific expression of the soybean gene was observed in root nodules formed on regenerated transgenic plants after infection with Rhizobium loti. The primary transcript was processed in the same way as in soybean nodules and the resulting mRNA was translated into Lbc(3) protein. Quantitative determination of the Lbc(3) protein in nodules of transgenic plants indicated that the steady-state level of the soybean protein is comparable to that of endogenous Lotus leghemoglobin.


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