Effect of Mineral-Organic-Microorganism Interactions on Soil and Freshwater Environments

The Working Group M.O. (Interactions of soil minerals with organic components and microorganisms) (WGMO) of the International Soil Science Society (ISSS) was founded in 1990 at the 14th World Congress of Soil Science (Kyoto, Japan), with Professor P.M. Huang being the Chairman. Since then, the Working Group M.O. has served as a forum to bring together soil chemists, soil mineralogists, soil microbiologists, soil biochemists, soil physi­ cists and environmental, ecological, and health scientists. The objective of the Working Group M.O. is to promote research, teaching, and also the exchange of technology concerning the knowledge and the impact of the interactions between minerals-organics and microorganisms on environmental quality, agricultural sustainability, and ecosystem "health". This group is first a scientific group as defined just previously, but it also intends to develop exchange and transfer between scientists and engineers. The first International Meeting organized by Professor P. M. Huang, was held in Edmonton, Canada, in August 1992, where 87 papers were presented by scientists from 20 countries. Following this meeting, a two volume book was edited by P. M. Huang, J. Berthelin, J.-M. Bollag, W. B. McGill, and A. L. Page, entitled "Environmental impact of soil component interaction" : Volume I "Natural and anthropogenic organic-volume II "Metals, other inorganic and microbial activities", and published by c.R.C. Lewis Pub­ lishers (1995).

I. Reactivity and Transformations of Mineral Constituents and Metals at the Soil-Solution Interfaces.- 1. Sorption Mechanisms at the Solid-Water Interface.- 2. Comparison between Bacterial and Chemical Dissolution of Al-Substituted Goethite. Incidence on Mobilization of Iron.- 3. Preparation and Thermodynamic Equilibria of Green Rusts in Aqueous Solutions and Their Identification as Mineral in Hydromorphic Soils.- 4. An XPS and AFM Coupled Study of Air and Bio-Oxidized Pyrite Surfaces37.- 5. Transformation of Iron-Containing Minerals in Kaolin during Growth of a Mixed Bacterial Culture Derived from Kaolin.- 6. Effect of Succinic Acid Produced by Microorganisms and Plant Roots on Copper Sorption by Soil.- 7. Interaction of Iron and Organic Matter in Relation to Its Uptake by Plants.- 8. Effects of Organic Matter, Iron, and Aluminium on Soil Structural Stability.- 9. Interactions of Mugineic Acid with Allophane, Imogolite, Montmorillonite, and Gibbsite.- 10. Aluminium Speciation, Toxicity, and Transfer from Soils to Surface Waters in Two Contrasting Watersheds Exposed to Acid Deposition in the Vosges Mountains (North Eastern France).- 11. Ultrafiltration as a Mean to Investigate Copper Resistance Mechanisms in Soil Bacteria.- II. Nature, Dynamics, and Transformations of Organic Compounds and Enzymes in Soils.- 12. Application of Organic Geochemistry Techniques to Environmental Problems.- 13. In situ ATR-FTIR Characterization of Organic Macromolecules Aggregated with Metallic Cations.- 14. The Structure of Organic Nitrogen in Particle Size Fractions Determined by 15N CPMAS NMR.- 15. Polymerization: A Possible Consequence of Copper-Phenolic Interactions.- 16. Effect of pH, Exchange Cations, and Hydrolitic Species of AI and Fe on Formation and Properties of Montmorillonite-Protein Complexes.- 17. Adsorption and Properties of Urease Immobilized on Several Iron and Aluminium Oxides (Hydroxides) and Kaolinite.- 18. The Fate of Acid Phosphatase in the Presence of Phenolic Substances, Biotic and Abiotic Catalysts.- 19. Kinetics of Catechol Oxidation Catalyzed by Tyrosinase or *#x03B4;-MnO2.- 20. Plant Residue Decomposition: Effect of Soil Porosity and Particle Size.- 21. The Effect of Humic Substances from Oxyhumolite on Plant Development.- 22. Changes in Some Properties of Humic Substances from Melanudands Induced by Vegetational Succession from Grass to Deciduous Trees.- 23. Characterization of the Organic Substances in Reclaimed Soils.- III. Microorganism-Colloid Interactions and their Effect on Bioavailability of Pollutants and Nutriments in Terrestrial and Freshwater Environments.- 24. Interactions between Polychlorinated Biphenyls and Yeasts Cells in Liquid Medium.- 25. Effects of pH, Electrolytes, and Microbial Activity on the Mobilization of PCB and PAH in a Sandy Soil.- 26. Modification of Herbicide Mineralization and Extractibility in Soil by Addition of Organic Matter in Model Experiments.- 27. Solubilization of Phosphorus from Apatite by Sulfuric Acid Produced from the Microbiological Oxidation of Sulfur.- 28. Availability of Soil Phosphorus to the Green Algae Selenastrum Capricornutum.- IV. Effect of Microorganism-Colloid-Soil Interactions on Dynamics and Activity of Microbial Communities and Populations.- 29. Role of Proteins in the Adhesion of Azospirillum brasilense to Model Substrata.- 30. Xylanase, Invertase, and Urease Activity in Particle Size Fractions of Soils.- 31. Activity of ?-Glucosidase in the Presence of Copper or Zinc and Montmorillonite or Al-Montmorillonite.- 32. Trace Mineral Amendments in Agriculture forOptimizing the Biochemical Activity of Plant-Associated Bacteria.- 33. Effects of Mechanical Stresses and Strains on Soil Respiration.- 34. Inhibitory Activity of Strains of the Genus Arthrinium on Aspergillus Species in Vineyard Soils of Requena (Spain).- 35. Study of Microfungal Species in a Calcareous Soil Treated with Sewage Sludge.- V. Integration of Mineral-Organic-Microorganism Interactions in the Evaluation of Soil and Freshwater Quality.- 36. Two-Step Bioremediation of Soils Contaminated with Chloroaromatics.- 37. Test Method for Determining the Acid Production Potential of Sulfur Treated Soils.- 38. Use of Pyrophosphate to Extract Extra- and Intracellular Enzymes from a Compost of Municipal Solid Wastes.- 39. Adsorption of Mthylene Blue by Red Mud, an Oxide-Rich Byproduct of Bauxite Refining.- 40. The Transformation of Water Quality.