Source and sink mechanisms of nitrogen transport and use
| العنوان: | Source and sink mechanisms of nitrogen transport and use |
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| المؤلفون: | Céline Masclaux-Daubresse, Mechthild Tegeder |
| المساهمون: | School of Biological Sciences, Washington State University (WSU), Institut Jean-Pierre Bourgin (IJPB), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, ERL 3559 - Du gène à la graine, Centre National de la Recherche Scientifique (CNRS), Université Paris Saclay (COmUE), US National Science Foundation [IOS-1457183], Agriculture and Food Research Initiative (AFRI) from the USDA National Institute of Food and Agriculture [2017-67013-26158] |
| المصدر: | New Phytologist New Phytologist, Wiley, 2018, 217 (1), pp.35-53. ⟨10.1111/nph.14876⟩ |
| بيانات النشر: | Wiley, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Crops, Agricultural, 0106 biological sciences, 0301 basic medicine, Nitrogen, Physiology, chemistry.chemical_element, Plant Science, engineering.material, Plant Roots, 01 natural sciences, nitrogen use efficiency, Sink (geography), 03 medical and health sciences, regulation and signaling, inorganic and organic nitrogen transporters, nitrogen storage and remobilization, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Nitrogen cycle, Plant Proteins, 2. Zero hunger, chemistry.chemical_classification, Source–sink dynamics, geography, geography.geographical_feature_category, Nitrogen transport, ammonium and nitrate uptake, fungi, Membrane Transport Proteins, food and beverages, Biological Transport, Assimilation (biology), 15. Life on land, crop improvement, Plant Leaves, 030104 developmental biology, amino acid and ureide partitioning, Agronomy, chemistry, Seeds, engineering, Environmental science, Fertilizer, Essential nutrient, Plant Shoots, 010606 plant biology & botany |
| الوصف: | Contents Summary 35 I. Introduction 35 II. Nitrogen acquisition and assimilation 36 III. Root-to-shoot transport of nitrogen 38 IV. Nitrogen storage pools in vegetative tissues 39 V. Nitrogen transport from source leaf to sink 40 VI. Nitrogen import into sinks 42 VII. Relationship between source and sink nitrogen transport processes and metabolism 43 VIII. Regulation of nitrogen transport 43 IX. Strategies for crop improvement 44 X. Conclusions 46 Acknowledgements 47 References 47 SUMMARY: Nitrogen is an essential nutrient for plant growth. World-wide, large quantities of nitrogenous fertilizer are applied to ensure maximum crop productivity. However, nitrogen fertilizer application is expensive and negatively affects the environment, and subsequently human health. A strategy to address this problem is the development of crops that are efficient in acquiring and using nitrogen and that can achieve high seed yields with reduced nitrogen input. This review integrates the current knowledge regarding inorganic and organic nitrogen management at the whole-plant level, spanning from nitrogen uptake to remobilization and utilization in source and sink organs. Plant partitioning and transient storage of inorganic and organic nitrogen forms are evaluated, as is how they affect nitrogen availability, metabolism and mobilization. Essential functions of nitrogen transporters in source and sink organs and their importance in regulating nitrogen movement in support of metabolism, and vegetative and reproductive growth are assessed. Finally, we discuss recent advances in plant engineering, demonstrating that nitrogen transporters are effective targets to improve crop productivity and nitrogen use efficiency. While inorganic and organic nitrogen transporters were examined separately in these studies, they provide valuable clues about how to successfully combine approaches for future crop engineering. |
| تدمد: | 1469-8137 0028-646X |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e545807a20d8138f4f2d61d641cb3902Test https://doi.org/10.1111/nph.14876Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....e545807a20d8138f4f2d61d641cb3902 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14698137 0028646X |
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