Advances in Microbial Ecology

1 Microbial Interactions among Aerobic and Anaerobic Sulfur-Oxidizing Bacteria.- 1. Introduction.- 2. The Types of Bacteria.- 3. Types of Microbial Interaction.- 4. Competition.- 5. Other Interactions Involving the Sulfide-Oxidizing Bacteria.- 6. Enrichment Studies.- References.- 2 Determining Microbial Kinetic Parameters Using Nonlinear Regression Analysis: Advantages and Limitations in Microbial Ecology.- 1. Introduction.- 2. Fundamental Definitions.- 3. Use of Linearized Forms of Nonlinear Models.- 4. Parameter Estimation Strategies.- 5. Residuals Analysis.- 6. Model Discrimination.- 7. Optimal Experimental Design.- 8. Some Models of Interest to Microbial Ecologists.- 9. Concluding Remarks.- References.- 3 Neglected Niches: The Microbial Ecology of the Gastrointestinal Tract 15.- 1. Introduction.- 2. Species Diversity in the Gastrointestinal Tract.- 3. Colonization Resistance.- 4. Perturbation of the Gut Ecosystem.- 5. Consequences of an Immature Microbiota.- 6. Immune Mechanisms.- 7. Adaptation to the Ecosystem: Important Determinants of Microbial Pathogenicity.- 8. Behaviorism in the Intestinal Tract: The Importance of What Organisms Do Rather Than What They Are.- 9. Man versus Mouse: The Relevance of Current Concepts of Intestinal Ecology.- 10. Manipulation of the Intestinal Ecosystem.- 11. Conclusion.- References.- 4 Ecological Constraints on Nitrogen Fixation in Agricultural Ecosystems.- 1. Introduction.- 2. The Rhizobium Inoculum.- 3. Establishment of Rhizobium.- 4. Survival of in Soil.- 5. Biological Stresses on Rhizobium.- 6. Abiotic Stresses on Rhizobium.- 7. Limitations on Nitrogen Fixation by Cyanobacteria.- 8. Conclusion.- References.- 5 Ecological Aspects of Heavy Metal Responses in Microorganisms.- 1. Introduction.- 2. Effects of Heavy Metals on Microbial Communities.- 3. Effects of Heavy Metals on Microbially Mediated Processes.- 4. Effects of Heavy Metals on Various Interactions.- 5. Common Problems.- 6. Future Prospects.- References.- 6 Ecology of Microbial Cellulose Degradation.- 1. Introduction.- 2. Structure of Cellulose.- 3. Cellulolytic Microorganisms.- 4. Interaction among Microorganisms in Ecological Systems.- 5. Conclusion.- References.