Ebook: Current Issues in Symbiotic Nitrogen Fixation

In the 100 years since the legume-Rhizobium symbiotic nitrogen fixation interaction was first described, interest in this field has grown rapidly. The types of studies have been cyclical in nature, involving a cross-section of disciplines. The availability of cheap nitrogenous fertilizers caused much of the biological nitrogen fixation research to become more theoretical in the developed world. The high cost of energy, coupled with environmental concerns and the interest in sustainable agriculture, has stimulated research in symbiotic nitrogen fixation. The development of modern genetic techniques has resulted in interdisciplinary research on plant-microbe interactions controlling nitrogen fixation. This has resulted in a better understanding of environmental factors influencing the nodulation process, chemical signalling between the symbiotic partners and the nature of the specificity between host plant and microsymbiotant.
This volume summarizes the diverse research efforts in biological nitrogen fixation by presenting a collection of papers in the areas of physiology and metabolism, taxonomy and evolution, genetics and ecology.

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In the 100 years since the legume-Rhizobium symbiotic nitrogen fixation interaction was first described, interest in this field has grown rapidly. The types of studies have been cyclical in nature, involving a cross-section of disciplines. The availability of cheap nitrogenous fertilizers caused much of the biological nitrogen fixation research to become more theoretical in the developed world. The high cost of energy, coupled with environmental concerns and the interest in sustainable agriculture, has stimulated research in symbiotic nitrogen fixation. The development of modern genetic techniques has resulted in interdisciplinary research on plant-microbe interactions controlling nitrogen fixation. This has resulted in a better understanding of environmental factors influencing the nodulation process, chemical signalling between the symbiotic partners and the nature of the specificity between host plant and microsymbiotant.
This volume summarizes the diverse research efforts in biological nitrogen fixation by presenting a collection of papers in the areas of physiology and metabolism, taxonomy and evolution, genetics and ecology.

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In the 100 years since the legume-Rhizobium symbiotic nitrogen fixation interaction was first described, interest in this field has grown rapidly. The types of studies have been cyclical in nature, involving a cross-section of disciplines. The availability of cheap nitrogenous fertilizers caused much of the biological nitrogen fixation research to become more theoretical in the developed world. The high cost of energy, coupled with environmental concerns and the interest in sustainable agriculture, has stimulated research in symbiotic nitrogen fixation. The development of modern genetic techniques has resulted in interdisciplinary research on plant-microbe interactions controlling nitrogen fixation. This has resulted in a better understanding of environmental factors influencing the nodulation process, chemical signalling between the symbiotic partners and the nature of the specificity between host plant and microsymbiotant.
This volume summarizes the diverse research efforts in biological nitrogen fixation by presenting a collection of papers in the areas of physiology and metabolism, taxonomy and evolution, genetics and ecology.
Content:
Front Matter....Pages i-ix
Advances in the positional cloning of nodulation genes in soybean....Pages 1-7
Molecular analysis of actinorhizal symbiotic systems: Progress to date....Pages 9-20
Diversity of Rhizobia isolated from various Hedysarum species....Pages 21-28
Diazotrophic endophytes: progress and prospects for nitrogen fixation in monocots....Pages 29-38
Drought-avoidant soybean germplasm maintains nitrogen-fixation capacity under water stress....Pages 39-43
Phylogeny and taxonomy of rhizobia....Pages 45-52
Comparison of rhizobitoxine-induced inhibition of ?-cystathionase from different bradyrhizobia and soybean genotypes....Pages 53-61
Assimilation of nod gene inducer 14C-naringenin and the incorporation of labelled carbon atoms into the acyl side chain of a host-specific Nod factor produced by Rhizobium leguminosarum bv. viciae....Pages 63-67
Corresponding 16S rRNA gene segments in Rhizobiaceae and Aeromonas yield discordant phylogenies....Pages 69-74
Rapid evaluation of peat-base legume inoculant using immunomagnetic beads for cell retrieval and fluorescent nucleic acid probes for viability analysis....Pages 75-79
Detection of genetic variation in Bradyrhizobium japonicum USDA 110 variants using DNA fingerprints generated with GC rich arbitrary PCR primers....Pages 81-85
Mimosine produced by the tree-legume Leucaena provides growth advantages to some Rhizobium strains that utilize it as a source of carbon and nitrogen....Pages 87-92
Subnanomolar concentrations of membrane chitolipooligosaccharides from Rhizobium leguminosarum biovar trifolii are fully capable of eliciting symbiosis-related responses on white clover....Pages 93-98
Analysis of the two nodulins, sucrose synthase and ENOD2, in transgenic Lotus plants....Pages 99-106
Hopanoid lipids in Bradyrhizobium and other plant-associated bacteria and cloning of the Bradyrhizobium japonicum squalene-hopene cyclase gene....Pages 107-112
Enhanced competitiveness of a Bradyrhizobium japonicum mutant strain improved for nodulation and nitrogen fixation....Pages 113-120
A diazotrophic bacterial endophyte isolated from stems of Zea mays L. and Zea luxurians Iltis and Doebley....Pages 121-125
Identification of enzymes involved in indole-3-acetic acid degradation....Pages 127-134
Toward a new concept of the evolution of symbiotic nitrogen fixation in the Leguminosae....Pages 135-142
Lipopolysaccharide core components of Rhizobium etli reacting with a panel of monoclonal antibodies....Pages 143-149
Diversity in symbiotic specificity of cowpea rhizobia indigenous to Zimbabwean soils....Pages 151-159
Host genetic control of symbiosis in soybean (Glycine max L.)....Pages 161-166
A comparison of the binding of Agrobacterium tumefaciens and Rhizobium meliloti to alfalfa roots, carrot suspension culture cells, and Arabidopsis thaliana root segments....Pages 167-171
Symbiotic effectiveness of marked rhizobial and bradyrhizobial mutants in pea, pigeonpea and mungbean....Pages 173-187
Back Matter....Pages 189-192
....Pages 193-196