Plant Macronutrient Use Efficiency presents an up-to-date overview of the latest research on the molecular and genetic basis of macro-nutrient use efficiency (NUE) in plants, and strategies that can be used to improve NUE and nutrient-associated stress tolerance in crop plants. Plant NUE is a measure of how efficiently plants use available nutrients and an understanding of plant NUE has the potential to help improve the use of limited natural resources and to help achieve global food security. This book presents information important for the development of crop plants with improved macro-NUE, a prerequisite to reducing production costs, expanding crop production into noncompetitive marginal lands with low nutrient resources, and for helping to prevent environmental contamination.

1. Molecular and Genetic Basis of Plant Macronutrient Use Efficiency: Concepts, Opportunities, and Challenges 2. Role of Nutrient-Efficient Plants for Improving Crop Yields: Bridging Plant Ecology, Physiology, and Molecular Biology 3. Macronutrient Sensing and Signaling in Plants 4. The Significance of Nutrient Interactions for Crop Yield and Nutrient Use Efficiency 5. The Contribution of Root Systems to Plant Nutrient Acquisition 6. Molecular Genetics to Discover and Improve Nitrogen Use Efficiency in Crop Plants 7. The Role of Root Morphology and Architecture in Phosphorus Acquisition: Physiological, Genetic, and Molecular Basis 8. Potassium Sensing, Signaling, and Transport: Toward Improved Potassium Use Efficiency in Plants 9. Understanding Calcium Transport and Signaling, and its use Efficiency in Vascular Plants 10. The Role of Calcium in Plant Signal Transduction Under Macronutrient Deficiency Stress 11. Magnesium Homeostasis Mechanisms and Magnesium use Efficiency in Plants 12. Advances in Understanding Sulfur Utilization Efficiency in Plants 13. Water Availability and Nitrogen use in Plants: Effects, Interaction, and Underlying Molecular Mechanisms 14. NPK Deficiency Modulates Oxidative Stress in Plants 15. Genetic Improvements of Traits for Enhancing NPK Acquisition and Utilization Efficiency in Plants 16. Endophytic Bacteria and Rare Earth Elements; Promising Candidates for Nutrient use Efficiency in Plants 17. Introduction to GWAS and MutMap for Identification of Genes/QTL using Next-Generation Sequencing 18. Transgenic Approaches for Improving Phosphorus use Efficiency in Plants 19. Transgenic Approaches for Improving Nitrogen and Potassium use Efficiency in Plants 20. Future Climate Change and Plant Macronutrient use Efficiency