Combined agronomic and physiological aspects of nitrogen management in wheat highlight a central role for glutamine synthetase
| العنوان: | Combined agronomic and physiological aspects of nitrogen management in wheat highlight a central role for glutamine synthetase |
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| المؤلفون: | Hélène Vanacker, Frédéric Dubois, Karine Pageau, Bertrand Hirel, Emmanuel Heumez, Delphine Pocholle, Jacques Le Gouis, Thomas Kichey |
| المساهمون: | Biologie des Plantes et Innovation - UR UPJV 3900 (BIOPI), Université de Picardie Jules Verne (UPJV)-Transfrontalière BioEcoAgro - UMR 1158 (BioEcoAgro), Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Université d'Artois (UA)-Université de Liège-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Stress Abiotiques et Différenciation des Végétaux Cultivés (SADV), Institut National de la Recherche Agronomique (INRA)-Université de Lille, Sciences et Technologies, Unité de recherche Nutrition Azotée des Plantes (URNAP), Institut National de la Recherche Agronomique (INRA), Université de Picardie Jules Verne (UPJV) |
| المصدر: | New Phytologist New Phytologist, 2006, 169 (2), pp.265-278. ⟨10.1111/j.1469-8137.2005.01606.x⟩ New Phytologist, Wiley, 2006, 169 (2), pp.265-278. ⟨10.1111/j.1469-8137.2005.01606.x⟩ |
| بيانات النشر: | Wiley, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | 0106 biological sciences, Time Factors, Physiology, ASSIMILATION, Flowers, Plant Science, Biology, 01 natural sciences, PHYSIOLOGICAL MARKERS, 03 medical and health sciences, chemistry.chemical_compound, Human fertilization, Glutamate-Ammonia Ligase, Glutamine synthetase, Ammonium, Poaceae, Cultivar, Nitrogen cycle, Triticum, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 2. Zero hunger, 0303 health sciences, Plant Stems, fungi, food and beverages, Metabolism, REMOBILIZATION, [SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy, NITROGEN, Agronomy, chemistry, Chlorophyll, Seeds, GLUTAMINE SYNTHETASE, 010606 plant biology & botany |
| الوصف: | Summary • In wheat the period of grain filling is characterized by a transition for all vegetative organs from sink to source status. • To study this transition, the progression of physiological markers and enzyme activities representative of nitrogen metabolism was monitored from the vegetative stage to maturity in different leaf stages and stem sections of two wheat (Triticum aestivum) cultivars grown at high and low levels of N fertilization. • In the two cultivars examined, we found a general decrease of the metabolic and enzyme markers occurred during leaf ageing, and that this decrease was enhanced when plants were N-limited. Both correlation studies and principal components analysis (PCA) showed that there was a strong relationship among total N, chlorophyll, soluble protein, ammonium, amino acids and glutamine synthetase (GS) activity. • The use of a marker such as GS activity to predict the N status of wheat, as a function of both plant development and N availability, is discussed with the aim of selecting wheat genotypes with better N-use efficiency. |
| تدمد: | 1469-8137 0028-646X |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33959e916ba49f9dbe9fc0aca20711c2Test https://doi.org/10.1111/j.1469-8137.2005.01606.xTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....33959e916ba49f9dbe9fc0aca20711c2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14698137 0028646X |
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