Progress in Botany Vol. 81

1. Nitrogen and Sulfur Metabolism in Microalgae and Plants: 50 Years of Research.- 2. Progress Toward Deep Sequencing-Based Discovery of Stress-Related MicroRNA in Plants and Available Bioinformatics Tools.- 3. Recent Advances in MS-Based Plant Proteomics: Proteomics Data Validation Through Integration with Other Classic and -Omics Approaches.- 4. Membrane Trafficking and Plant Signaling.- 5. Molecular Aspects of Iron Nutrition in Plants.- 6. Urea in Plants: Metabolic Aspects and Ecological Implications.- 7. Biosynthesis and Regulation of Secondary Cell Wall.- 8. Stress-Induced Microspore Embryogenesis in Crop Plants: Cell Totipotency Acquisition and Embryo Development.- 9. Potential of Microalgae Biomass for the Sustainable Production of Bio-commodities.- 10. Crassulacean Acid Metabolism and Its Role in Plant Acclimatization to Abiotic Stresses and Defence Against Pathogens.- 11. The Role of the Shikimate and the Phenylpropanoid Pathways in Root-Knot Nematode Infection.-12. Functional Diversity of Photosynthesis, Plant-Species Diversity, and Habitat Diversity.- 13. When the Tree Let Us See the Forest: Systems Biology and Natural Variation Studies in Forest Species.- 14. The Ecological Importance of Winter in Temperate, Boreal, and Arctic Ecosystems in Times of Climate.