Ammonium assimilation and ureide metabolism in common bean (Phaseolus vulgaris) nodules under salt stress Mariam Khadri, Lina Pliego, Mariam Soussi, Carmen Lluch and Antonio OcañaAgronomie, 21 6-7 (2001) 635-643DOI: https://doi.org/10.1051/agro:2001155