Preface. Clays and Humic Acids Affect Persistence and Biological Activity of Insecticidal Proteins from Bacillus Thuringiensis in Soil (G. Stotzky). Microbial Ecology of Soil Biofilms: Substrate Bioavailability, Bioremediation and Complexity (R.G. Burns, J.E.M. Stach). Biogeochemistry of Phosphorus, Iron, and Trace Elements in Soils as Influenced by Soil-Plant-Microbial Interactions (A.C. Chang et al.). Adsorption of the Insecticidal Toxin from Bacillus Thuringiensis Subspecies Tenebrionis to Clay Fractions of Tropical Soils (P. Muchaonyerwa et al.). Toxins from Bacillus Thuringiensis Subsp. Israelensis Sorbed on Clays: Persistence and Activity Against the Mosquito Culex Pipiens (P. González et al.). Soil Ecosystem Properties, Microbial Diversity, and Ecosystem Assessments (R.L. Tate III, B.F. Rogers). Effects of Soil Abiotic Processes on the Bioavailability of Anthropogenic Organic Residues (P. Ruggiero et al.). Interactions of Minerals-Organic Matter-Living Organisms on the Fate of Allelochemicals and Xenobiotics in Soil: A Methodological Evaluation (H.H. Cheng, W.C. Koskinen). Environmental Effect of Metsulfuron-Methyl on the Size of Microbial Biomass and N-Mineralization in a Loamy Sand Soil (A.M. El-Ghamry et al.). Transformation and Binding of 2,4,6-Trinitrotoluene in Soil Amended with Activated Carbon (G.K. Vasilyeva et al.). Phytoremediation of Oil-Contaminated Soils (J.J. Germida et al.). Secondary Mobilization of Heavy Metals in Polluted Soils under Microbial Influence (Model Experiment) (A.Yu. Bespalova et al.). Microbial Biomass Response to Heavy Metals in the Field (C. Gigliotti, A. Farini). Role of Fire on Soil Organic Matter Turnover and Microbial Activity in a Mediterranean Burned Area (F.A. Rutigliano et al.). Soil Development and Microbial Community along an Altitudinal Transect in Trentino Mountains (M. Castaldini et al.). Soil Microbial Activity in Three Evergreen Oak (Quercus ilex) Woods in a Mediterranean Area (S. Papa et al.). A Method to Recover Salmonella from Compost by IMS-PCR (M. Civilini). Study of Temporal Variability in the Microbial Community of Two Forest Soils: Biomass and Activity (C. Gigliotti, A. Farini). Effect of Cu2+ and Hg2+ on Gene Transfer by Transformation and Transduction in Bacillus subtilis (M. Franchi et al.). Cadmium and Zinc Toxicity to Soil Microbial Biomass and Activity (G. Renella et al.). Impact of Tillage Practices on Seasonal Nitrate Dynamics, Leaching and Microbial Activity in a Crop Rotation
(R. Papini et al.). Characterization of Enzymatic or Abiotic Immobilization of Xenobiotics in Soil (J.-M. Bollag et al.). Enzymes in Soil: Properties, Behavior and Potential Applications (L. Gianfreda et al.). Response of Organic Matter Pools and Enzyme Activities in Particle Size Fractions to Organic Amendments in a Long-Term Field Experiment (M.H. Gerzabek et al.). Indirect Approaches for Assessing Intracellular Arylsulfatase Activity in Soil (F. Fornasier). Changes in Soil Organic Matter, Enzymatic Activities and Heavy Metal Availability Induced by Application of Organic Residues (P. Burgos et al.). Oxygenase Systems in an Oligotrophic Bacterial Community of a Subsurface Water Polluted by BTEX (L. Cavalca et al.). Lichen-Rock Interactions and Bioformation of Minerals (P. Adamo et al.). Soil Humic Acids Formation and Characteristics in a Xeric Mollisol Reforested with two Tree Species (M.T. Dell'Abate et al.). Energy Use in the A and B Horizons of the Soil under a Pine and a Cedar Stand (F. Pinzari et al.). Future Perspectives on the Environment and Human Health Interactions (C. De Kimpe). Index.