00944nam a2200181 a 450000100080000000500110000800800410001902000180006010000150007824500190009326000360011230000100014852005040015865300250066265300190068765300320070670000240073810479142007-12-05 2001 bl uuuu 00u1 u #d a3-540-67799-21 aLEA, P. J. aPlant nitrogen aNew York: Springer-Verlagc2001 a407p. aNitrate Uptake and 1ts Regulation; Nitrate Reduction and Signalling; Ammonia Assirnilation; Mechanisms and Regulation of Ammonium Uptake in Higher Plants; Ammonia Assimilation; Symbiotic Nitrogen Fixation; Nodule Formation and Function; Nitrogen Acquisition and Assimilation in Mycorrhizal Symbioses; Nitrogen Metabolism; Amino Acid Metabolism; Amino Acid Transport; nteractions Between Carbon and Nitrogen Metabolism; Natural Genetic Variability in Nitrogen Metabolism; Nitrogen in the Environment. aAmmonia Assimilation aPlant Nitrogen aSymbiotic nitrogen fixation1 aMOROT-GAUDRY, J. F.