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Informationen zum Autor About the Editors William Plaxton is currently a Full Professor and Queen's Research Chair in the Department of Biology at Queen's University, Kingston, Canada. Hans Lambers is Professor of Plant Physiological Ecology in the School of Plant Biology at the University of Western Australia, Perth, Australia. Klappentext The development of phosphorus (P)-efficient crop varieties is urgently needed to reduce agriculture's current over-reliance on expensive, environmentally destructive, non-renewable and inefficient P-containing fertilizers. The sustainable management of P in agriculture necessitates an exploitation of P-adaptive traits that will enhance the P-acquisition and P-use efficiency of crop plants. Action in this area is crucial to ensure sufficient food production for the world's ever-expanding population, and the overall economic success of agriculture in the 21st century.This informative and up-to-date volume presents pivotal research directions that will facilitate the development of effective strategies for bioengineering P-efficient crop species. The 14 chapters reflect the expertise of an international team of leading authorities in the field, who review information from current literature, develop novel hypotheses, and outline key areas for future research. By evaluating aspects of vascular plant and green algal P uptake and metabolism, this book provides insights as to how plants sense, acquire, recycle, scavenge and use P, particularly under the naturally occurring condition of soluble inorganic phosphate deficiency that characterises the vast majority of unfertilised soils, worldwide. The reader is provided with a full appreciation of the diverse information concerning plant P-starvation responses, as well as the crucial role that plant-microbe interactions play in plant P acquisition.Annual Plant Reviews, Volume 48: Phosphorus Metabolism in Plants is an important resource for plant geneticists, biochemists and physiologists, as well as horticultural and environmental research workers, advanced students of plant science and university lecturers in related disciplines. It is an essential addition to the shelves of university and research institute libraries and agricultural and ecological institutions teaching and researching plant science. Zusammenfassung The development of phosphorus (P)-efficient crop varieties is urgently needed to reduce agriculture's current over-reliance on expensive, environmentally destructive, non-renewable and inefficient P-containing fertilizers. Inhaltsverzeichnis List of Contributors xvii Preface xxiii Section I Introduction 1 Phosphorus: Back to the Roots 3 Hans Lambers and William C. Plaxton 1.1 Introduction 3 1.2 Phosphorus or phosphorous? 4 1.3 Phosphorus on a geological time scale 6 1.4 Phosphorus as an essential, but frequently limiting, soil nutrient for plant productivity 7 1.5 Soil phosphorus pools 9 1.6 Soil phosphorus mobility 10 1.7 Factors determining rates of phosphorus uptake by roots 11 1.8 Phosphorus-starvation responses: does phosphorus homeostasis exist? 13 1.9 Concluding remarks 14 Acknowledgements 15 References 15 Section II P-Sensing, Transport, and Metabolism 2 Sensing, Signalling, and Control of Phosphate Starvation in Plants: Molecular Players and Applications 25 Wolf-Rüdiger Scheible and Monica Rojas-Triana 2.1 Introduction 25 2.2 The plant phosphate-starvation response 26 2.3 Sensing of phosphate and other macronutrient limitations in plants 29 2.3.1 Nutrient transporters as sensors/receptors 29 2.3.2 Local Pi sensing and signalling at the root tip by PDR2/LPR1 31 2.3.3 Phosphite, a tool to investigate P-sensing/signalling 31 2.4 Signalling ...
