Includes bibliographical references.

Ch. 1. Nitrate Assimilation -- 1. Nitrate Uptake and Its Regulation / B. Touraine, F. Daniel-Vedele and B. Forde -- 2. Nitrate Reduction and Signalling / C. Meyer and M. Stitt -- Ch. 2. Ammonia Assimilation -- 1. Mechanisms and Regulation of Ammonium Uptake in Higher Plants / N. von Wiren, A. Gojon and S. Chaillou / [et al.] -- 2. Ammonia Assimilation / B. Hirel and P. J. Lea -- Ch. 3. Symbiotic Nitrogen Fixation -- 1. Nodule Formation and Function / T. Gordon, P. J. Lea and C. Rosenberg / [et al.] -- 2. Nitrogen Acquisition and Assimilation in Mycorrhizal Symbioses / F. Martin, J. B. Cliquet and G. Stewart -- Ch. 4. Nitrogen Metabolism -- 1. Amino Acid Metabolism / J.-F. Morot-Gaudry, D. Jos and P. J. Lea -- 2. Amino Acid Transport / S. Delrot, C. Rochat and M. Tegeder / [et al.] -- 3. Interactions Between Carbon and Nitrogen Metabolism / C. Foyer, S. Ferrario-Mery and G. Noctor -- Ch. 5. Nitrogen Traffic -- 1. Nitrogen Traffic During Plant Growth and Development / A. Ourry, J. H. Mcduff and J. J. Volenec / [et al.] -- 2. Protein Hydrolysis and Nitogen Remobilization in Plant Life and Senescence / R. Brouqisse, C. Masclaux and U. Feller / [et al.] -- Ch. 6. Nitrogen and Seed storage Proteins -- The Biochemistry and Molecular Biology of Seed Storage Proteins / J.-C. Autran, N. G. Halford and P.-R. Shewry -- Ch. 7. Nitrogen and Yield -- 1. Nitrogen, Plant Growth and Crop Yield / D. Lawlor, G. Lemaire and F. Gastal -- 2. Natural Genetic Variability in Nitrogen Metabolism / A. Limami and D. de Vienne -- Ch. 8. Nitrogen in the Environment / M. W. Ter Steege, I. Stulen and B. Mary.