Symbiotic Nitrogen Fixation

During the past three decades there has been a large amount of research on biological nitrogen fixation, in part stimulated by increasing world prices of nitrogen-containing fertilizers and environmental concerns. In the last several years, research on plant-microbe interactions, and symbiotic and asymbiotic nitrogen fixation has become truly interdisciplinary in nature, stimulated to some degree by the use of modern genetic techniques. These methodologies have allowed us to make detailed analyses of plant and bacterial genes involved in symbiotic processes and to follow the growth and persistence of the root-nodule bacteria and free-living nitrogen-fixing bacteria in soils. Through the efforts of a large number of researchers we now have a better understanding of the ecology of rhizobia, environmental parameters affecting the infection and nodulation process, the nature of specificity, the biochemistry of host plants and microsymbionts, and chemical signalling between symbiotic partners. This volume gives a summary of current research efforts and knowledge in the field of biological nitrogen fixation. Since the research field is diverse in nature, this book presents a collection of papers in the major research areas of physiology and metabolism, genetics, evolution, taxonomy, ecology, and international programmes.

ISBN 0792327810   Weight (grammes) 718 ISBN13 9780792327813 (What's this?)   Published in Dordrecht Publisher Kluwer Academic Publishers   Conference location St. Paul, Minnesota Imprint Kluwer Academic Publishers   Conference name North American Conference on Symbiotic Nitrogen Fixation Format Hardback   Conference year 1993 Publication date 01 Sep 1994   Series title Developments in Plant and Soil Sciences Library of Congress QR89.7.N67   Height (mm) 230 DEWEY 589.90133   Width (mm) 203 DEWEY edition DC20   Academic level Postgraduate, Professional / Scholarly Pages 208

		Preface
		Acknowledgements
1		Evolution and diversity in the legume-rhizobium symbiosis: Chaos theory? by J. I. Sprent		1
2		Recent developments in Rhizobium taxonomy by E. Martinez-Romero		11
3		Host range, RFLP, and antigenic relationships between Rhizobium fredii strains and Rhizobium sp. NGR234 by H. B. Krishnan and S. G. Pueppke		21
4		Rapid identification of Rhizobium species based on cellular fatty acid analysis by B. D. W. Jarvis and S. W. Tighe		31
5		Ammonium sensing in nitrogen fixing bacteria: Functions of the glnB and glnD gene products by C. Kennedy and N. Doetsch and D. Meletzus and E. Patriarca and M. Amar and M. Iaccarino		43
6		Regulation of nodulin gene expression by F. J. de Bruijn and R. Chen and S. Y. Fujimoto and A. Pinaev and D. Silver and K. Szczyglowski		59
7		Synthesis, release, and transmission of alfalfa signals to rhizobial symbionts by D. A. Phillips and F. D. Dakora and E. Sande and C. M. Joseph and J. Zon		69
8		Role of rhizobial lipo-oligosacharides in root nodule formation on leguminous plants by O. Geiger and T. Ritsema and A. A. N. van Brussel and T. Tak and A. H. M. Wijfjes and G. V. Bloemberg and H. P. Spaink and B. J. J. Lugtenberg		81
9		Sucrose transport and hydrolysis in Rhizobium tropici by V. I. Romanov and E. Martinez-Romero		91
10		Shoot/root assimilate allocation and nodulation of Vigna unguiculata seedlings as influenced by shoot light environment by M. J. Kasperbauer and P. G. Hunt		97
11		Mechanism of osmotically regulated N-acetylglutaminylglutamine amide production in Rhizobium meliloti by L. Tombras Smith and A. Ameer Allaith and G. M. Smith		103
12		What triggers the regulation of nitrogenase activity in forage legume nodules after defoliation? by U. A. Hartwig and J. Nosberger		109
13		Nodulation and nitrogen fixation in extreme environments by L. M. Bordeleau and D. Prevost		115
14		Analysis and regulation of legume inoculants in Canada: The need for an increase in standards by P. E. Olsen and W. A. Rice and L. M. Bordeleau and V. O. Biederbeck		127
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