Responses to Sulfur Limitation in Maize.- Feasibility of Elemental S Fertilizers for Optimum Seed Yield and Quality of Canola in the Parkland Region of the Canadian Great Plains.- Impact of Sulfur on N2 Fixation of Legumes.- Sulfur Nutrition and Assimilation in Crop Plants.- Regulatory Protein-Protein Interactions in Primary Metabolism: The Case of the Cysteine Synthase Complex.- Glutathione Reductase: A Putative Redox Regulatory System in Plant Cells.- Sulfotransferases and Their Role in Glucosinolate Biosynthesis.- Response of Photosynthetic Organelles to Abiotic Stress: Modulation by Sulfur Metabolism.- Modified Levels of Cysteine Affect Glutathione Metabolism in Plant Cells.- Role of Glutathione in Abiotic Stress Tolerance.- Recent Advances in Understanding of Plant Responses to Excess Metals: Exposure, Accumulation, and Tolerance.- Role of Sulfate and S-Rich Compounds in Heavy Metal Tolerance and Accumulation.- Sulfur Assimilation and Cadmium Tolerance in Plants.- Glutathione Metabolism in Bryophytes under Abiotic Stress.- Allocation of Sulfur to Sulfonium Compounds in Microalgae.- Accumulation and Transformation of Sulfonated Aromatic Compounds by Higher Plants –Toward the Phytotreatment of Wastewater from Dye and Textile Industries.- Effects of Fertilization with Sulfur on Quality of Winter Wheat: A Case Study of Nitrogen Deprivation.