Nitrogen Fixation with Non-Legumes: The Fourth International Symposium on ‘Nitrogen Fixation with Non-Legumes’, Rio de Janeiro, 23–28 August 1987

Front Matter....Pages i-vii
Front Matter....Pages 1-1
Mechanisms of infection of plants by nitrogen fixing organisms....Pages 3-11
Front Matter....Pages 13-13
Effective nodulation of Coriaria myrtifolia L. induced by Frankia strains from Alnus glutinosa L. (Gaertn.)....Pages 15-24
Biology of the Pavasponia-Bradyrhizobium symbiosis....Pages 25-33
Glasshouse evaluation of the growth of Alnus rubra and Alnus glutinosa on peat and acid brown earth soils when inoculated with four sources of Frankia ....Pages 35-46
Ultrastructure of Frankia isolated from three Chilean shrubs (Rhamnaceae)....Pages 47-53
Front Matter....Pages 55-55
Physiology and agronomy of Azolla-Anabaena symbiosis....Pages 57-62
Heterotrophic metabolism and diazotrophic growth of Nostoc sp. from Cycas circinalis ....Pages 63-70
Light dependent nitrogen chlorosis in a heterocystous cyanobacterium....Pages 71-76
Isolation and characterization of the N 2 -fixing symbiotic cyanobacterium Anabaena azollae ....Pages 77-82
Bacteria in the Azolla-Anabaena symbiosis....Pages 83-88
New data on the Azolla-Anabaena symbiosis....Pages 89-94
New data on the Azolla-Anabaena symbiosis....Pages 95-100
Front Matter....Pages 101-101
Isolation and identification of root associated diazotrophs....Pages 103-108
Occurrence and survival of Azospirillum spp. in temperate regions....Pages 109-114
 Klebsiella sp. NIAB-I : A new diazotroph, associated with roots of kallar grass from saline sodic soils....Pages 115-120
Ecophysiological aspects of growth and nitrogen fixation in Azospirillum spp.....Pages 123-136
The phytohormonal interactions between Azospirillum and wheat....Pages 137-145
Investigations on growth, nitrogen fixation and ammonium assimilation by a bacterium isolated from rice soil....Pages 147-152
Front Matter....Pages 153-153
Regulation of nif genes expression in Azospirillum brasilense and Herbaspirillum seropedicae ....Pages 155-163
Homology between plasmids of Azospirillum brasilense and Azospirillum lipoferum ....Pages 165-172
Front Matter....Pages 153-153
Self-transmissible nif -plasmids in Entevobacter ....Pages 173-178
Identification of Bacillus azotofixans nitrogen fixation genes using heterologous nif probes....Pages 179-187
Isolation and properties of Azospirillum lipoferum and Azospirillum brasilense surface polysaccharide mutants....Pages 189-195
Front Matter....Pages 197-197
Plant-bacteria interactions with special emphasis on the kallar grass association....Pages 199-207
Location of diazotrophs in the root interior with special attention to the kallar grass association....Pages 209-218
Field inoculation of sorghum and rice with Azospirillum spp. and Herbaspirillum Seropedicae ....Pages 219-224
Front Matter....Pages 225-225
Involvement of IAA in the interaction between Azospirillum brasilense and Panicum miliaceum roots....Pages 227-234
Influence of inoculation with Azospirillum brasilense and Glomus fasciculatum on sorghum nutrition....Pages 235-239
Inoculation with associative N 2 -fixers in Egypt....Pages 241-246
Front Matter....Pages 247-247
Association between N 2 -fixing bacteria and pearl millet plants: Responses, mechanisms and persistence....Pages 249-262
Effect of inorganic N and organic fertilizers on nitrogen-fixing (acetylene-reducing) activity associated with wetland rice plants....Pages 263-272
Impact of soil environmental factors on rates of N 2 -fixation associated with roots of intact maize and sorghum plants....Pages 273-285
Front Matter....Pages 287-287
Natural 15 N abundance as a method of estimating the contribution of biologically fixed nitrogen to N 2 -fixing systems: Potential for non-legumes....Pages 289-299
Survival and colonization of inoculated bacteria in kallar grass rhizosphere and quantification of N 2 -fixation....Pages 301-310
Selection of sugar cane cultivars for associated biological nitrogen fixation using 15 N-labelled soil....Pages 311-319
Occurrence of effective nitrogen-scavenging bacteria in the rhizosphere of kallar grass....Pages 321-330
Back Matter....Pages 331-338