Grain legumes can contribute to cropping systems through their ability to fix atmospheric N2 in their root-nodules. However, the symbiotic nitrogen fixation process requiadditional phosphorus. Thus, the production of grain legumes, particularly common bean, is limited by P-deficiency in many soils, mostly in tropical and Mediterranean areas. Recombinant inbred lines (RILs — F8) from a cross of common bean parents BAT477 with DOR364 were selected for improved phosphorus-use efficiency and N2-dependent growth in glasshouse hydro-aeroponic culture and tested in farmers’ field. The present work with Phaseolus vulgarisas a model grain legume shows a significant difference in the overall phosphatase activity in nodules, including a relatively high level of phytase activity, between two recombinant inbred lines that contrast in their efficiency in utilization of P for symbiotic nitrogen fixation.
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© 2008 Springer Science + Business Media B.V.
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Drevon, J.J. et al. (2008). Do Nodule Phosphatase and Phytase Link with the Phosphorus Use Efficiency for N2-Dependent Growth in Phaseolus vulgaris ?. In: Dakora, F.D., Chimphango, S.B.M., Valentine, A.J., Elmerich, C., Newton, W.E. (eds) Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture. Current Plant Science and Biotechnology in Agriculture, vol 42. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8252-8_31
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DOI: https://doi.org/10.1007/978-1-4020-8252-8_31
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