Interactions Between Non-pathogenic Soil Microorganisms and Plants

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Yvon R. Dommergues, Sagar V. Krupa
Elsevier Scientific Publishing Company, 1978 - Botany - 475 pages
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The plant - microorganism system. Interrelations between plant roots and microorganisms. Influence of environmental factors on the plant - microorganism systems. Growth and structure of roots. Techniques of observation. Root habit. Variation in root structure. Germination. Structure of the cell wall. Growth of a typical root. Tissues of the root. Storage root. Gymnosperm root. Monocotyledonous root without secondary thickening. Root-microbial interactions. The physiology of roots. Basic root metabolism. Biochemical interactions in roots. Biochemistry of root differentiation. The nature and source of the natural regulators of root growth. Hormonal control of root growth and differentiation. Hormonal control of root tropisms. Genetic modifications of root physiology. Nutrient uptake. Solution culture. Soil. Possible mechanisms of the microbial effects. Root exudates and exudation. The physiology of exudation. Environmental factors affecting root exudation. Evaluation of methods of investigation. Energy flow in the plant - microorganism system. Carbon gain: photosyntesis and net production. Distribution of carbon. Carbon turnover. Modeling the carbon flow in the plant - microorganism system. The rhizosphere. Some structural aspects. Some metabolic aspects. Spermosphere. Legume symbiosis. Ecology of the legume root nodule bacteria. Techniques for ecological study of rhizobia. Rhizobia and soil physical - chemical features. Rhizobia and soil biological features. Rhizobia in the rhizosphere. Analysis and projection. Physiology of legume symbiosis. Infection of legume roots. Structure of nodules and their development. Physiology and biochemistry of N2 fixation. Root nodule symbioses in non-leguminous N2-fixing plants. Actinomycete symbioses in angiosperm nodules. Rhizobium symbiosis in non-leguminouns plants. Blue-green algae symbioses in gymnosperm nodules. Mycorrhizae. Ectomycorrhizae. External and internal characteristics of ectomycorrhizae. Taxonomy and physiology of ectomycorrhizal fungi. Interactions between fungal symbionts and tree hosts. Factors affecting ectomycorrhizal development. Ectomycorrhizae as deterrents to feeder root pathogens. Ectomycorrhizae and a afforestation practices. Ectomycorrhizae and reclamation of adverse sites. Ectomycorrhizae and reforestation practices. Endomycorrhizae. Ericalean mycorrhiza. Vesicular-arbuscular mycorrhiza. Orchidaceous mycorrhiza. The significance of endomycorrhiza. Impact on soil management and plant growth. Utilization of chemicals. Utilization of physical practices. Altering the rhizosphere microflora by inoculation. Genetic manipulation of microorganisms; plant genetics and plant breeding.

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Influence of environmental factors on the plantmicroorganism systems

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